Matters related to the use of the saw blade

Precautions blade using:
 1 Keep alloy saw hanging vertically on the drying rack, be sure to avoid damp places, do not alloy blade flat on the floor or shelf, flat lead alloy blade deformation.
2 When using, do not exceed the  abrasive flap wheels specified maximum speed. After the speed of calculation is attached for reference.
3 When used, must be with shields, gloves, helmets, safety shoes, safety glasses.
4 When installing alloy saw blade, you must first confirm the performance of the saw table, uses, it is best to read the manual saw table. Avoid loading the wrong, causing an accident.
5 When installing alloy blade, alloy blades must first check whether there is a split, distort, fill level, after the  masonry drill bits fall of teeth and other phenomena, then install it.
 6 super-hard alloy saw sharp serrated prohibit collision, falling to the ground, must be gently.
7 After loading alloy blade, you must confirm the center hole of the blade is firmly fixed on the saw table flange, gasket must be good washer; then gently push the hand saw blade confirmation piece rotation is eccentric shaking. 8 alloy blade must cut direction indicated by the diamond bandsaw blades  arrow is aligned with the direction of rotation of the saw table. Do not install the opposite direction, installed the wrong direction can cause tooth out.
 9 preroll time: After replacing the alloy saw blade, before use pre-turn for a minute, let the saw table to enter the work state, to be cut.

What are the characteristics of the resin grinding wheel

The characteristics of the resin grinding wheel resin grinding wheel is made of resin grinding wheel, such as phenolic, epoxy, polyurethane, polyvinyl alcohol, etc.; high strength resin grinding wheel, and can be added to strengthen the fiber network in the grinding wheel in steel, such as cutting, grinding, Currently, most of us are not waterproof resin grinding wheel, abrasive grinding fluid can not be used, of course, need  diamond bandsaw blades to add some resin grinding wheel grinding fluids, such as epoxy resin finish grinding wheel, the workpiece is not easy to burn, the current resin grinding wheel used in cutting, double-end, heavy duty wheels, polishing wheels, etc., than the metal-binding agent and vitrified low strength resin bond wheels. resin binder is an organic binder, which binder manufacture of high-strength wheel, has a certain elasticity, heat resistance is low, self-sharpening, simple production, shorter process cycle. The operating speed can be made higher than 50 m / sec and a thin wheel wheel. Its range of applications after the ceramic binder, widely used in rough grinding, snagging, cutting and grinding freedom, such as grinding steel ingot casting deburring and so on. Can produce high-speed, high-finish wheels, heavy duty, cutting and grinding wheels of various special requirements. Resin bond grinding wheel while the larger tool abrasive flap wheel  demand. It is the use of benzoic acid and the polyamide resin as a binder or other, by means of a tool to the abrasive diamond or cubic boron nitride and an inorganic filler made of glue. This tool is currently being effectively used in a variety of grinding operations, such as surface grinding, cylindrical centerless grinding, grooving and internal grinding and so on. It is super-resistant stainless steel, cermet, ceramic products, glass products, limonite, high-speed steel, alloy tool as well as many other new superhard materials ideal for grinding tools. There are many special resin binding for rapid cooling of  sanding discs diamond cutting wheel. These wheels especially for carbide tools (such as saws, cutting machines, drilling tools, end mills, etc.) grinding. In addition, these tools can also be used carbide dies, rollers and carbide wear parts, precision grinding operations. Resin bond grinding wheels are the preferred ceramic and precision machining and grinding of carbide ceramic thermal sprayed layer. Resin glue wheel can also be used in conjunction with CBN, for grinding high-speed steel, tool and die steels and superalloys FtRC50 above.

During operation of the concrete coring machine

 During operation concrete coring machine , mainly preparation, installation , drilling, drill , final hole five steps.
Preparation 1 , the use of pre-
( 1 ) adding 93 # unleaded gasoline and high oil, how much oil can be added to prevail based on the dipstick mark.
( 2 ) in the column filled with oil and turn the handle and feed the output shaft , check the feed and rotary is flexible and reliable.
( 3 ) ready for water.
( 4) Check all parts of the screw is loose.
2, the installation
Drill holes later on , the three  concrete saw blades walking round lifting , so the base fell to the ground. Hit the hole and concrete strength is not high , then you can rely on its own weight rig rig fixed , if playing a larger aperture , the rig can not hold their own weight when the rig can place heavy objects ( such as sand bags on the chassis, iron , concrete blocks , etc. ) fixed or play two bolts plus bar ( such as channel , etc. ) to secure the rig , rig securely fixed to not shake , otherwise not normal drilling operations .
3 , opening
After doing these jobs , job openings can , put on the drill , the starting gasoline engine (see gasoline user manual ) of the inlet pipe into the bucket, the bucket to mention higher pump position, and  grinding cup wheels then pinching the water suction gas -hsiang pumps, water pumps , Sheung Shui, the bucket on the ground level . Throttle to maximum and began to jiggle the handle into the drill slowly touch the ground. Opening Tip: after the first water drilling, feed slowly, WOB small. Prohibited anhydrous job , it would burn the drill and seal .
4 , drill
When 2-3 mm deep hole drilling , the drilling can be turned into a normal , appropriate at this time to increase the  feed pressure , normal drilling tips : feed pressure should be moderate , to maintain uniformity , crude steel to encounter to reduce the intake pressure . To do listen second look , whether listening to the sound of the machine  diamond cutting tools properly, to see whether the return orifice ( risk ) of water.
5 , final hole
After reaching a depth taken , you can stop drilling . Stop drilling requirements are: first turn off the water after the machine when if deep , can not immediately provide drilling and without water , while punching with water for some time, aimed at the hole in the rock powder rinse to prevent rock powder precipitation resulted in burying cause coring difficulties.

Electroplated diamond cutting discs role

Resin bond diamond wheel is mainly used for parallel carbide measuring tools, cutting tools , molds and other surface grinding , cylindrical grinding , bore grinding, grinding and also used as a cut man bronze molding bonded diamond grinding wheel is mainly used for hard brittle non-metallic materials , such as glass , ceramics, ferrites , precious stones and other cylindrical and planar processing , but also for the electrolytic grinding carbide products . Diamond grinding wheel series can be divided stone drill bits  into : parallel (P) | parallel arcs band wheel (PH) | single bevel (PDX) | double hypotenuse (PSX) |
The cup-shaped grinding wheel cutting disc (B) | bowl-shaped grinding wheel (BW2) | butterfly wheel (D1) | Single concave wheel (PDA) | Double-sided concave grinding wheel (PSA) and the special specifications according to customer requirements can be kind to map build processing .
Diamond grinding wheel used in the electronics industry , the semiconductor industry and other materials, slotting or cut diamond wheels for carbide main bar , ferrite , magnetic materials as well as glass , silicon, resistors , crystal and other cutting . DTHX60-1500.15-1.210-755 8 material blade diamond particles / μm Applications glass + silicone resin, glass cutter knife communication elements 20-30 30-45 inkjet print head quartz resin knife 30-40SAW tantalum / lithium niobate resin knife 15 -30SAW ferrite resin knife VCR heads 6-9 3-6 piezoelectric ceramic resin knife diamomd core drill bits  or 30 sensors alumina resin knife 30-88 - sapphire resin knife
45-53 - Resin Knife Features :
  1 , almost any material can be cut .
  2 , has a unique self-sharpening function , no repair knife.
  3 , the blade can be manufactured within φ200mm .
  4, the thinnest blade is 0.10mm.
  5, the cutting discs with a tough , high precision, ultra-thin and other characteristics, can be domestic or imported precision cut dicing the integrated silicon chip.
  6 , the service life of more than 10,000 lines.
  Main purpose : for slotting or cutting hard and brittle materials .
 Tip: Thickness φ100mm resin knife Maximum spindle speed selection and knife related. When using resin knife, spindle speed should be within 16000-40000r/min , the Heat do not exceed the specified  concrete grinding wheel maximum speed , otherwise the blade will automatically body . To choose high-power spindle speed spindle speed in determining when another speeding , they should also consider the material hardness , soft material dicing cut high spindle speed gestures hard materials, low -cut plan than the spindle speed , and cut into thick material planning .

ultra-high speed grinding occupy undisputed dominance

1, the plating process is simple, easy to manufacture, less investment;
2, easy to use, no dressing;3, single-layer structure determines it can reach very high operating speed, the stone drill bits  current foreign countries have been as high as 250 ~ 300m / s; 4, although only a single layer of diamond, but there is still sufficient lifetime; 5, for high precision roller wheels, electroplated unique manufacturing method.Because of these advantages, electroplated grinding wheel speed, ultra-high speed grinding occupy undisputed dominance. Electroplated diamond grinding wheel defects exist: the coating and the substrate and the metal surface stone polishing pads  is not kept firmly binding the abrasive chemical metallurgical bonding, actually only be mechanically entrapped abrasive coating metal inlay, thus gripping force is small, efficient grinding diamond particles heavier load and easyOff (or plating flaking) and lead to an overall failure; gripping force to increase the coating thickness must be increased, and the results highly abrasive bare chip space is reduced, wheel prone to clogging, the cooling effect is poor, prone to burn the workpiece surface. CurrentlyDomestic  concrete saws electroplated grinding wheel manufacturing has not been achieved by optimized processing conditions required to design the best grinding wheel topography, single electroplated diamond grinding these inherent drawbacks will be significantly limited its efficient grinding applications.

Application and use of the process in the resin-cutting considerations

Resin cutting discs, also called resin grinding wheel, is mainly used as a chemical synthetic fabrics increased resin abrasive material has a relatively high tensile , impact and flexural strength , the use of high-speed lines . Resin wheel often mounted on an electric , pneumatic grinder, which can be of various metal surfaces for maintenance , cleaning welds, joints , rust , grinding casting burrs , surface defects and repairs  cutting discs slotted workpiece and cutting work . High efficiency and safe to use resin wheel , suitable for chemical , shipbuilding , machinery, automotive, construction and other industrial sectors. 1 Use angle grinder with safety cover with safety cover cutting machine ; . 2 Wear protective goggles , masks , ear plugs , gloves, dust-proof clothing ; 3 thin resin cutting discs at maximum speed using the week , maximum number of revolutions of the following use ;
4 absolutely can not use  concrete ring saw resin cutting side pieces ; 5 using the correct flange . No enhancement: 1 /3 ; has enhanced : 1/4 ; 6 confirmed prior to use resin cutting edge pieces intact , no cracks, no cracks , etc. ; .
7 resin cutting discs stored in direct sunlight , moisture -free place , and horizontally ;
Before 8 start using thin resin cutting discs, please idling one minute before using , replaced with new varieties of resin cutting films, please idling three minutes before use ;
9 conscientiously object to be cut Concrete saw blades  firmly fixed ; 10 when being small inner diameter resin cutting discs and equipment do not match , please do not make changes to the aperture wheel . What do these security measures in order to ensure the smooth working of efficient production

Research stone diamond bit drilling parameters affect its surface temperature

 Drilling in stone, because of relatively high speed movement between the diamond drill and stone complex tribological phenomena arising in the contact interface. Friction between diamond drill and stone, as the stone poor thermal conductivity, most of the heat transferred diamond segment, making diamond drill surface temperature, resulting in diamond graphite, diamond cutting capacity reduced, which leads to the bit matrix  thermal polishing pads for granite  fatigue, lower strength and stiffness, increased noise when processing stone, increased vibration, reduce bit life, serious diamond head off, causing injury to the operator, but also affect the processing quality and efficiency. Research diamond bit drilling parameters affecting its surface temperature to identify factors that influence the relationship between surface temperature and the law, determine a reasonable processing parameters, help to improve the diamond drill bit life and reduce processing costs, improve processing quality.
  Experimental conditions are diamond segments using a Cu powder, a diamond particle size of 60 to 80 mesh, using pressing sintering method, the welding head in the high speed steel cylinder. Diamond drill diameter φ37mm, high-5.6mm, width 2mm, base diameter φ35.6mm, height 45mm. Processing equipment used XK5032C type CNC milling machine, the device implements the X axis, automatic feed three directions Y and Z axes, spindle cooling method using water-cooled. The temperature measured with an infrared wood band saw blades  temperature measuring surface of the tool, the measurement temperature range of -50 ~ 650 ℃. Direct l2 ℃ measured at room temperature conditions. Stone were selected marble, sandstone and granite. This experiment studies the spindle speed, feed rate and stone impact performance parameters such as surface temperature of the diamond drill bit. Experiment was carried out under dry cutting conditions, machining state. Results of impact 3.1 feed rate on temperature
 When processing stone diamond drill, impact drill surface temperature of many parameters, including diamond properties, performance bond, stone physical and mechanical properties, processing parameters, cooling parameters. Effect on the surface temperature of the diamond drill bit experimental study of stone processing parameters and performance. Figure 2 is the spindle speed is 300r/min, the feed rate was 10mm/min, 15mm/min, 20mm/min, 25mm/min, when the surface temperature of the pre-drill drilling marble drilling time curve. As can be seen in Figure 2, in the four kinds of conditions of feed rate, the surface temperature of the diamond drill bits are increased with the increase of the processing time. In the early stage of diamond tools manufacturer  processing, the temperature increases relatively slowly, when the processing time exceeds 4s, sharp increase in temperature. When the processing time reaches 10s, the diamond drill is the initial surface temperature 5 times. Figure 3 feed rate versus temperature curve for the processing of marble. From the figure can be seen in the feed rate l0 ~ 20mm/min the temperature rises slowly, the feed rate of 20 ~ 30mm/min, the temperature rise is most obvious, the most heat in this interval drills stone processing generated. As the drilling process, the diamond drill bit with a large stone surface friction, resulting in diamond drill surface temperature rise. Due to the low thermal conductivity of marble, and a high thermal conductivity of the tool, a large part of the heat conducted to the diamond drill bit, diamond drill causes the surface temperature. Since the feed rate increases, the cutting face of the contact per unit time increases, the number of cutter contact with the stone, the surface temperature increases.

Decomposition cut stainless steel blade chrome plating surface nitriding and appearance classification

( Seven color ) , this coating when cutting stainless steel and alloy steel and steel, compared to the general coating abrasion resistance , reduces the resistance under high-speed operation , in order to prolong the life of the saw blade and maintain long-term action under stability. And plus cobalt in the blade , the blade can effectively improve the turbo diamond blade  stability , hardness and wear resistance. Cobalt content increases can reduce the  coefficient of friction saw, between the workpiece . Its durability is 1 to 2 times the normal speed steel. This blade is especially suitable for stainless steel tubing , rods, profiles sawing , cutting, cutting, milling. When used in the processing of ordinary steel , aluminum , plastic, wood and other materials , the effect is very obvious , less burr section after cutting , good blade toughness , long cutting life. Machinable stainless steel tube material : 3-Series industrial stainless steel.
PVD coating specially treated blade , the  diamond discs surface was golden , the surface hardness of 2400HV, compared with steam treatment increased nearly three -fold blade , Mocha coefficient is reduced to 0.55 , for fast sawing on semiautomatic or fully automatic metal circular sawing machine cut seamless steel tubes, iron pipes , rods , etc., faster than the steam treatment blade doubles , effectively reducing the cost cutting while in the cutting of stainless steel pipe , can get quite satisfactory results .1 cut , continuous edge blade : Continuous serrated diamond saw, generally produced by sintering method , commonly used as a basis for bronze binder matrix material, cutting water to be added to ensure that the effect of cutting and a laser head cutting kinds of useful gap .
2 , blade -type blade : serrated disconnected, cutting speed, suitable for dry and wet cutting methods.
3 , turbine -type blade : 1,2 combines the advantages of the previous two , the sawtooth -like uniform continuous presence  diamond bandsaw blades turbo punch , improved cutting speed and increase service life.
Diamond saw blade , constant blade sharp pebbles , Heng Rui concrete saw blades , diamond sculptured piece , slotted diamond , diamond -cut wall pieces , diamond cut pile piece , Songshan cobblestone saw, Songshan concrete saw blade.
Different materials selection of different types of diamond saw blades , different powder formulations for different material properties , the quality of materials and products , effects, and even the costs and benefits of the pass rate direct impact .
Factors affecting the efficiency and life of saw blade has a particle size , concentration, binding agent , and the hardness of the diamond sawing process parameters and the like . It has a blade cutting parameters line speed , concentration and cutting feed rate .

Excellent characteristics of single crystal diamond meet the precision

 Carbon atoms, a single diamond crystal, the crystal structure of the highest density of metal atom such as axial face-centered cubic crystal. Diamond crystal connected between the carbon atoms  grinding cup wheels bond to sp3 hybridized covalent bond, with a strong binding force, stability and direction. The unique crystal structure of diamond in nature it has the highest hardness, stiffness, refractive index and thermal conductivity, and high wear resistance, corrosion resistance and chemical stability.
Excellent characteristics of single crystal diamond meet the precision and ultra-precision cutting tool material for most of the requirements and is ideal for precision cutting tool materials. Diamond without internal grain boundaries uniform crystal structure so that the tool cutting edge can theoretically reach the atomic level flatness and sharpness, cut thin cutting ability, high precision, cutting force is small; their high hardness and good wear resistance resistance, corrosion resistance and diamomd core drill bits  chemical stability can ensure that the tool has a long life, so that it can continue for a long time of cutting, the tool wear can be reduced because of the precision of the parts; its high thermal conductivity can be reduced and the cutting temperature parts thermal deformation.
Single crystal diamond tool in the machining field has an important position, is widely used as a mirror, missiles and rockets navigation gyro, computer hard disk substrate accelerator electron gun, such as ultra precision mirror of parts. Can also be used in the manufacture of single crystal diamond eye, brain surgeon's scalpel, thin slicing knives and  4 inch saw blades other bio-medical tools. In addition, single-crystal diamond tool in civilian products processing applications are becoming increasingly widespread, from watch parts, aluminum pistons, jewelry and other processing to pens, high-gloss mirror decorative signs and non-ferrous metal parts processing, its application has entered the machining a variety of areas.

Diamond powder and reducing segregation and aggregation

 Pelleting process in ancient Chinese medicine processing to get the application and development. Now widely used in the pharmaceutical industry, the preparation of powder metallurgy materials and alloys, metallurgy, ceramics and fertilizer industries. In recent years, the production of diamond tools in order to improve production efficiency ferrules and quality, so that it can automate production, and the development and application of the pelleting process.
Pelleting process in powder metallurgy and diamond tool industry was application and development, mainly due to it has the following advantages:
1. Improved flowability and improved. After granulation powder having a particle diameter of a large particle size than the original powder, each particle is surrounded by the number of particles may be exposed to reduced, so the adhesion, cohesion and mutual friction greatly reduced, thereby to improve and increase the particulate material mobility.
2. Diamond powder and reducing segregation and aggregation, more uniform distribution, improving the performance of products. Granulation process prior to powder, diamond mixed with a binder, and then add solvent mixing and granulation wetting again, every single diamond powder wrapped in quilts are then cold pressing and sintering, thus preventing polishing pads for granite  segregation and diamond powder aggregation, thereby increasing the sintering properties of products, uniformity and stability of the product.
3. Improve the accuracy of the product size and weight, since the mixed powder to improve flowability, the powder products more uniform loading of the cold, cold products, improve the accuracy of the geometric dimensions and weight. This repression shaped products, sandwiches, laser welding blade tips and the transition head better.
4. Reducing the loss of cold mold. Since the metal grinding wheel  powder fluidity, diamond powder parcels were distributed more evenly, so the cold mold loss reduction, die life by 50 or more.
5. Improve the efficiency of the process cold and economy, in order to achieve the cold automated production to create the conditions. As the improvement of powder flowability, die life, so that ordinary cold press automatic weighing more efficient, making the volume of the adoption of automatic cold press possible. A foreign company 32VPM volumetric cold press, according to the head design, the operating parameters entered into the computer, basically metal grinding wheel  do not care personnel, automatic production. Granulation and displacement using cold press, the head is reduced to suppress the time from 32S 10S; die life by a 12,000 increase to 25,000; cold reduced costs from $ 0.35 to $ 0.11.
6. Reduce body powder pollution hazards to workers. After pelleting process used to reduce fine particles easily broken, easy storage and transportation, so that dust emissions and pollution greatly reduced.

the depth is involved in diamond cutting wear

( 1 ) diamond saw blade speed: in practical work , diamond saw blade line speed is equipment conditions , and is limited to the quality of the blade sawing stone before nature. From the best blade life and cutting efficiency , the linear velocity of the blade should be selected according to the different nature of the stone . When cutting granite , the blade may be within the selected line speed 25m ~ 35m / s range. For high quartz content and difficult cutting granite , remove the saw blade line speed limit diamond bandsaw blades  is appropriate. In the production of granite tiles, use a smaller diameter diamond saw blades , wire speed can reach 35m / s.
( 2 ) cutting depth : the depth is involved in diamond cutting wear , effectively sawing , saw the forces and the nature of the important parameters are affected by sawing stone . In general , when a high line speed diamond saw blade should be selected for cutting of small depth , from the current technology , the cutting depth of the diamond can choose between 1mm ~ 10mm . Usually large diameter saw blade when cutting granite blocks , cutting depth  turbo diamond blade can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time . When a large diamond saw blade line speed , you should select a large depth of cut. But in performance and tool strength saw the extent permitted , should try to take a greater concentration of cutting cutting to improve cutting efficiency. When the surface of the processing requirements of a small depth of cut should be used . ( 3 ) diamond saw blade feed rate : Feed rate Jibei sawing stone feed rate. Its size affect the rate of cutting , the blade and the cutting force by the heat dissipation area . Its value should be based on the nature of the stone sawing selected . In general, the sawing softer stone, such as marble, may be appropriate to increase the feed rate, if the feed rate is too low , more conducive to improving cutting rates. Sawing fine structure , relatively homogeneous granite , may be appropriate to increase the feed rate, if the feed rate is too low , diamond blade easily cutting discs  be polished . But while sawing UNEVEN coarse structure of granite , feed rate should be reduced , otherwise it will cause the blade vibration resulting in reduced fragmentation of diamond cutting rates. Granite cutting feed rate is generally within the range of the selected 9m ~ 12m/min .

Factors Affecting the efficiency and lifetime of diamond saw blades

Factors affecting the efficiency and life of the diamond saw with particle size , concentration, binding agent , and the hardness of the diamond sawing process parameters and the like . It has cut the number of blades can be wire-speed , cutting feed rate and concentration .
First, the cutting parameters:
( 1 ) Blade Speed: In practice , the  diamond cup grinding wheel line speed diamond saw blade being equipment conditions , and restrictions were sawing blade quality stone before nature. From the best blade life and cutting efficiency , the linear velocity of the blade should be selected according to the different nature of the stone . When cutting granite , the blade may be within the selected line speed 25m ~ 35m / s range. For high quartz content and difficult cutting granite , remove the saw blade line speed limit is appropriate. In the production of granite tiles, using a diamond saw blade smaller diameter , the line speed up to 35m / s.
( 2 ) cutting depth : the depth is involved in diamond cutting wear , effectively sawing , saw the forces and the nature of the important parameters are affected by sawing stone . In general , when a high line speed diamond saw blade should be selected for cutting of small depth , from Concrete saw blades  the current technology , the cutting depth of the diamond can choose between 1mm ~ 10mm . Usually large diameter saw blade when cutting granite blocks , cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time . When a large diamond saw blade line speed , you should select a large depth of cut. But in performance and tool strength saw the extent permitted , should try to take a greater concentration of cutting cutting to improve cutting efficiency. When the surface of the processing requirements of a small depth of cut should be used .
( 3 ) Feed speed : Feed speed Jibei stone cutting feed rate . Its size affect the rate of cutting , the blade and the cutting force by the heat dissipation area . Its value should be based on the nature of the stone sawing selected . In general, the sawing softer stone, such concrete saw blades  as marble, may be appropriate to increase the feed rate, if the feed rate is too low , more conducive to improving cutting rates. Sawing fine structure , relatively homogeneous granite , may be appropriate to increase the feed rate, if the feed rate is too low , diamond blade easily be polished . But while sawing UNEVEN coarse structure of granite , feed rate should be reduced , otherwise it will cause the blade vibration resulting in reduced fragmentation of diamond cutting rates. Granite cutting feed rate is generally within the range of the selected 9m ~ 12m/min .

Knowledge of diamond and diamond tools

Knowledge of diamond and diamond tools diamond and diamond tools industry in China is called "sunrise industry." With the rapid expansion of China's synthetic diamond production and infrastructure construction, a large number of employees added to the diamond and diamond tool industry in the past.
 Diamond and diamond tools industry is urgently needed to prepare a user-friendly, progressive approach, involving diamond bandsaw blades  all aspects of the diamond tool and set its usability, operability in  one of the popular science readers for relevant enterprises and technical personnel, management personnel, production staff learning and training to use, but also can be used as research institutes and universities related technical personnel graduate students, secondary school students to study and learn the reference. This book aims to answer questions and produce ways to popularize basic knowledge of natural diamond, synthetic diamond, diamond tools, techniques, and treatment methods by analyzing production practice frequently asked questions, a comprehensive, systematic answers to the causal relationship between the relevant technology. By a question and answer, charts and Mao forms, so that the majority engaged in diamond and diamond tools, technical staff, managers, operatives easier to understand, remember and operations, and from subject to different inspiration, to enrich and grow professional knowledge, the purpose of improving the overall technical quality and operational skills. The book is divided into six chapters: the first chapter, diamond and diamond synthesis, introduces formed on natural diamond and synthetic diamond, origin, properties and testing, knowledge of the principles and methods of synthesis, synthesis equipment and other technology areas; Chapter II , electroplated diamond tools, manufacturing Introduces electroplated diamond tools, plating  green concrete blades solution formulations and processes, causes and effects of electroplating tool quality control, pre-plating treatment after plating, electroplating drill, reamer electroplating, plating, etc. blade manufacturing process etc.; Chapter III, diamond abrasives, diamond introduces metal abrasive, abrasive resins, such as the production of ceramic abrasive formula, process methods and performance testing and other control; Chapter IV, diamond drill bits, introduces a variety of diamond drill bit manufacturing method, formulation and process design, performance testing and quality analysis methods such as the use precautions and requirements; Chapter V, diamond saw blades, mainly on all kinds of diamond saw blade manufacturing method, working principle, performance testing and analysis Quality inspection and control methods; Chapter  cutting discs VI, powder metallurgy basics, introduces performance metal powder, milling method, pressing and sintering characteristics of the pre-alloy powder and so on. This book describes the latest of many recent research results, such as "pulse plating manufacturing diamond tools," "very hard to slip manufacturing diamond drill formations hot", "Chinese Continental Scientific Drilling Project a use of diamond drill wells," "ordered diamond saw blade manufacturing "," PDC drill welding strength testing methods, "" pre-alloy powder manufacture and use of technology, "etc. These highly innovative content, help enlighten the reader's mind, to improve the level of manufacturing diamond tools, with some help.

Kim saw blade grinding must be noted at the time

Factor in the use of gold saw blade grinding to note about the : 1 , coolant grinding teeth grinding fluid that is good or bad decision . When a large amount of tungsten partridge grinding , diamond grinding wheel powder, not timely flushing and cleaning of the grinding wheel tool surface pores, resulting in surface grinding tool can not grind finish, there diamond blades  is not enough cooling will burn alloys. 2, the grinding mechanism for grinding teeth affected. Alloy saw blade grinding machine structure and assembly that is good or bad , about the current market two types of models: one is floating in Germany Seoul ink types. The type with vertical grinding off , all the advantages of using hydraulic stepless movement , all the feed system using V -rail and ball screw work , grinding or arm using the jog feed retraction rewind, adjust the fuel tank clip heart, flexible and reliable support piece , pulling teeth accurate positioning, strong self-centering blade positioning heart , any angle adjustment , cooling rinse reasonable man-machine interface , high precision grinding off , pure grinder rational design ; II , which is currently horizontal such as Taiwan and Japan models, the presence of mechanical transmission gears and mechanical clearance dovetail slide accuracy, low steady performance clips , adjust the difficulty heart support piece , pulling teeth institution or poor reliability, after the plane left and right sides and an angle not mind grinding cut , resulting in large deviation angle difficult to control, mechanical wear disaster ensure accuracy. 3 , welding factor. Welding alloys deviation big impact precision grinding , grinding pressure while causing great pressure on the small side , rear corner also produce the above factors, the welding angle difference , inevitable human factors , all of the grinding wheel, and other factors produce an unavoidable impact . 4 , wheel width on the quality and size . Optional wheel run- gold films , pay attention to wheel size , granularity is too coarse grinding wheel produced traces wheel grinding selected fine grain size is less easy to plug , easy to burn knife. Wheel diameter and thickness is based alloy wheel width or different tooth width and the length of each side alloy case may be , not a corner after corner or front wheel can be any size as different tooth grinding , must be targeted to choose a  diamond cut off wheel suitable Specifications wheel. 5 , grinding feed rate. Alloy blade grinding entirely good or bad decision grinding feed rate , generally alloy saw blade feed rate from 0.5 to 6 mm / s can not exceed this value that should be within 20 teeth per minute per minute exceeding 20 tooth feed rate is too large , it will have a serious knife tumor or burn alloy wheel produces concave surface affect the accuracy of the waste grinding wheel . 6 , grinding feed rate , the choice of wheel size on the amount of feed has very important significance. General Wheel suggested the use of 180 # 240 # 240 # to most, the choice not to choose 280 # 280 # to 320 # , or to adjust the feed rate. 7 , grinding heart. All grinding the blade and the substrate for the heart, rather than with the blade of the heart, the heart does not get out surface grinding , horn , front  Dressing plates corner with a processing center can not be sharpened a blade , blade grinding three processes Heart can not be ignored . Grinding side angle still careful observation alloy thickness , thickness change with different grinding heart , no matter how the alloy thickness , surface grinding wheel center line should be kept with the welding position in a straight line , otherwise the impact of cutting angle difference . 8 , pulling teeth institutions can not be ignored . Regardless of how the structure of any grinding , pulling teeth to coordinate accuracy Brothers Design quality , acupressure pulling teeth tooth surface in a reasonable position at the time of transfer machines, and not with the move is extremely critical , when back teeth , pulling teeth jaws should flexible and reliable.

Determination of diamond grinding wheel diamond content Tablets

How to determine the content of the diamond film diamond wheel, we must first understand what it is per cubic centimeter (cm3) containing the number of carats (ct) diamonds to be calculated. Details as follows:
  1. 1.1ct/cm3 = 25%, 2.2ct/cm3 = 50%, 3.3ct/cm3 = 75%, 4.4ct/cm3 = 100%, 5.5ct/cm3 = 125%.
  2. Ct diamond carat refers to  polishing pads for granite the weight not volume, 1ct = 0.2g.
  3 This method is the total content of the resin bond diamond wheel method. Ceramic metal-binding method and binding method, combined with the exception electroforming method.
  4 low levels were used to reduce abrasive grinding Omo impedance, high levels were used for forming an acute  grinding wheels angle grinding in order. Circular or other special shapes.
5 to diamond resin grinding wheel specification illustrate SDC150P100B that SDC diamond abrasives - 150 grit thickness - P end-stage combined hardness - content 100% (per cubic centimeter containing 4.4 kt diamond abrasive) -. B Resin France this content method of accounting in the resin bond diamond wheel method. ceramic metal-binding method and binding method, combined with the exception electroforming method.
Wheel during high speed rotation, if flying or fragmentation can cause casualties, mainly due to low quality  abrasive tools or wheel mounted card irregularities. Second, in the process of grinding wheel will produce a lot of powder layer, the operator needs to wear a mask, or prolonged inhalation of this powder layer will lead to respiratory diseases, lung diseases.

Field of use of diamond tools

Diamond is the hardest, so in stone, building materials processing, diamond cutting tool is a good tool. Diamond tools such as diamond saw blades and wear-resistant materials in non-ferrous metal processing applications, has excellent adaptability. Use the following detailed description of the field of diamond tools.
When using diamond tools, users  concrete diamond blades have two options: one is polycrystalline diamond (PCD), the other is a relatively new chemical vapor deposition (CVD) diamond.
Early use of proven performance
Polycrystalline diamond has a natural diamond hardness, strength and abrasion resistance, but does not damage the sensitivity of natural diamond. It is at high temperature, the polymerization of the synthetic diamond particles. In the process, while the polycrystalline particles is integrally formed is bonded to a cemented carbide substrate on to improve the mechanical strength and impact resistance.
PCD is applicable to high-speed cutting of aluminum, is particularly suitable is required to achieve good surface roughness of the main case, it is in the processing of high wear resistance, and exhibits excellent performance. Typically, PCD recommended for cutting high silicon aluminum alloy, but also for brass, copper, bronze, and carbide processing. Processes used include turning, boring, profiling, grooving, milling and hole processing.
As the chemical reaction between the diamond and iron, in general, does not apply to the processing of ferrous metals PCD material. However, it can deal with the processing of bi-metal material, comprising a combination of aluminum and iron included. For example: a car parts suppliers in the processing of aluminum and cast iron cylinder bi-metal body with a diameter of 305mm wafer type face milling cutter, corner radius 2.36mm, with repair knife, cutting 304.8m/min, feed 0.10 mm / tooth, depth of cut 5mm, processing up to the 5000 cylinder block, indexable inserts only need one.
By the mass production industry, primarily grinding cup wheels  in the automotive industry increasing push aluminum processing speeds. Meanwhile, car manufacturers in order to reduce weight and reduce costs, is on the use of metal matrix composites evaluated, and such materials must be processed by PCD. He said: "Such material can not be processed using carbide tools."
Polycrystalline product manager, said that although the PCD development achievements have been giving a very deep impression,
PCD tools in terms of scope and production efficiency, have brought many benefits to the process. Although the diamond is the hardest available materials, the material characteristics and toughness problems still further. One factor to improve the toughness of PCD is plus cobalt is not directed it into a random arrangement between the diamond grains. Further, the cemented carbide substrate of the diamond abrasive layer can also act as a mechanical support, thereby increasing the impact resistance, and ease of manufacture of brazed tool.
Another benefit of the PCD, the existing series of various grades have been able to meet any need to use non-ferrous metal processing. In general, the fine particles are less wear diamond for materials processing require very high surface roughness of the occasion; diamond  sand paper particles in general as generic brands machining; coarse diamond for roughing the special anti-wear material, but the surface roughness of less demanding place.
Bright future
At present, many production sites do not take full advantage of the diamond. The reason is that a lot of speed and torque tools are not sufficient to ensure the efficient functioning of the tool.
In addition to mechanical problems, there is a difficult problem is to convince people to produce the factory, do not just stare at diamond (PCD or CVD diamond) set the initial price, but to see it brings cost savings and improved performance benefits. You can make a diamond tool than conventional operation (depending on machine performance may be) at a higher speed, thereby enhancing the volume of output. Meanwhile, fewer tool changes. Assume diamond carbide than 50 times to 100 times higher life, you do not often stop it.

etermine the characteristics of the grinding wheel grinding process system can make even micro cutting

 Grinder with grinding wheel as the cutting tool on the workpiece machining methods. This method features:
 (1) Since the abrasive grinding wheel itself wet polishing pad  has a high hardness and heat resistance, high hardness can be processed so grinding materials such as hardened steel, carbide, etc..
 (2) determine the characteristics of the grinding wheel grinding process system can make even micro cutting, the general ap = 0.001 ~ 0.005mm; grinding speed is high, generally up to v = 30 ~ 50m / s; grinder stiffness; adopts hydraulic transmission Therefore grinding energy and affordable access to high precision (it6 ~ it5) small surface roughness (ra = 0.8 ~ 0.2μm). Grinding parts finishing the main methods.(3) As intense friction, leaving the grinding zone temperature is high. This can cause deformation of the workpiece to produce stress, and even cause surface burns. Therefore, a lot of grinding coolant must be injected to reduce the grinding temperature. Coolant may also function as a lubricant chip (4) grinding large radial force. This will cause the machine - grinding wheel - workpiece system flexibility retreat, so that the actual depth of cut less than the nominal depth of cut. Therefore, the grinding will be completed when the light is not to be  diamomd core drill bits infeed grinding to remove the error.(5) After blunt abrasive, grinding force also increased, resulting in grain crushing or off, exposing sharp edges again, this feature is called "self-sharpening." Self-sharpening grinding a certain period of time to make normal, but after more than a certain work should be carried out manually trimmed to avoid grinding force increases caused by vibration, noise and damage the workpiece surface quality.Wheel speed working conditions, in order to ensure safety, should be checked before installation, there should be no cracks and other defects; wheel work to make a smooth, dynamic balance test should be carried out before use.Grinding work after a certain time, its surface will be void debris clogging the abrasive concrete saw blades  acute angle will blunt the original geometry is distorted. Therefore, to restore the cutting ability of the dressing to be correct geometry. Wheel dresser diamond pen required.Structure and surface grinder grinding motionMany different types of grinding machines, mainly surface grinder, cylindrical grinder, internal grinder, universal cylindrical grinding machine (also can grind the hole), gear grinding, thread grinding machine, rail grinding, centerless grinding (grinding cylindrical) tool grinder (grinding tool ), etc.

CBN tools and tool compared to conventional materials What are the different places

cbn at high temperature to 2000 ℃ was still with excellent red hardness .
cbn is a hardness second only to diamond superhard cutting tool materials ,

usually in the processing of the material hardness greater than 48HRC works

best when ( machining soft materials cbn wear out quickly ) . cbn at high

temperature to 2000 ℃ was still with excellent red hardness . Although cbn

more brittle than cemented carbide , and the thermal and chemical stability

than the ceramic , but it has a higher than ceramic cutting tools impact

strength and crack resistance , and low rigidity of the machine is also able

to cut hard metals. In addition, custom- cbn proper power tool can withstand

rough cutting load, intermittent cutting blows and finishing the required

high temperature and abrasion resistance . Appropriate for the specified

customization processes including machine and fixture rigidity , edge

grinding large enough to prevent microscopic peeling , and the tool base body

is a high content of grade cbn . cbn grade high content of these specified

processes are required, because they have high speed under heavy load

conditions edge machining requirements of high thermal resistance and

toughness and for severe intermittent cutting . These properties make this

material is used as a tool material grade roughing of hardened steel and

pearlitic gray cast iron .
low content of material grades cbn cbn content than the more brittle grades ,

but they are used when machining hardened ferrous better performance . They

have a lower thermal conductivity and a relatively higher withstand high-

speed cutting and the negative rake angle  General purpose blade of the compressive strength of the

heat generated . Higher cutting zone temperature can help soften the

workpiece material and chip breaking , while negative rake angle can enhance

the tool cutting edge stability , improve tool life and allows depth of cut

is less than 0.25mm . Because the tool can Edge 2000 Pads  cbn surface finish of better than

0.4μm and maintain concentricity of ± 0.012mm , dry car hardened workpiece

is usually an attractive alternative to dirty grinding the cooled solution

strengthening . Although cbn is a hard turning and high-speed milling

particularly fond of tool material, but  polyethylene oxide the ceramic and cbn have an amazing

range of applications overlap , and therefore it is necessary to use the cost

- benefit analysis to determine who can get the best results .

Aluminium and aluminum grinding wheel grinding program which

1, the hardness is low intensity : The maximum hardness of aluminum HB110 ~ 120, the maximum tensile strength is generally 20 ~ 30kg/cm2. Low hardness , scratch resistance of a material to plastic deformation or poor , the grinding surface is easily scratched and bumps .
2 , the plastic ductility large , the grinding process produces plastic adhesion , blocking wheel surface ; while a low melting point alloy (660 ~ 780 ℃), the temperature in the grinding zone , the  marble polishing pads surface of the metal melt , adhesive wheel surface , resulting in the increase of the melt adhesion of the blocking wheel .
3, the linear expansion coefficient: the grinding action of heat , the aluminum alloy is easy to cause deformation of the workpiece , thus affecting the precision grinding of the workpiece surface .
4 , the grinding efficiency is low : in order to overcome the alloy produced in grinding the workpiece thermal deformation , reducing the grinding wheel surface adhesion blocking , to ensure the surface quality , to increase the number of dressing , ordinary steel is about 3 times , thus reducing the grinding productivity.
Second, the choice of grinding wheel aluminum : Aluminum grinding process the biggest problem is the " stick" , " block "
A, aluminum ultra- fine grinding , mirror grinding : Use the "PVA" wheel, equivalent to Japan 's "UB" wheel . Can achieve the effect of the mirror . The grinding wheel is also  fibre discs similar in structure and ceramics ( see below ) .
B, aluminum and semi- coarse grinding :
1 , abrasives : The brittle and sharp black silicon carbide .
2 , binding agents : Use with high strength ceramic binder , and oil, acid, alkali, corrosion resistance .
3 , particle size : to meet the requirements of the case using the coarse number. Coarse : selection of 36 to 46 # ; grinding : the use of 60-80 ; coarse grit No. relatively small number of participating grinding , grinding, less heat , reducing the deformation of the workpiece and the grinding wheel clogged ;
4 , hardness: should opt for a  granite core bits lower hardness, the grinding wheel to maintain a good self-sharpening . Generally used in H ~ J hardness .
5, the organization : an organization should adopt a more accommodating loose debris , so that the cooling fluid into the grinding zone , enhancing the cooling effect, reducing the grinding zone temperature . Should be used in large pores wheel loose organization , with good grinding effect .

Practical of diamond tools

Diamond tool is mainly used for a variety of non-ferrous metals such as aluminum turning , copper, magnesium and its alloys , tungsten carbide and wear strong fiber reinforced plastic materials, metal matrix composites, wood and other non-metallic materials . When cutting speed, feed  concrete diamond blades rate and depth of cut depends on processing conditions and the hardness of the workpiece material . Synthetic polycrystalline diamond compact (PDC) properties and applications close PCD tool , mainly used in non-ferrous metals , tungsten carbide , ceramics, non-metallic materials ( plastic , hard rubber, carbon rod , wood, cement products, etc. ) , composite materials such as cutting, gradual replacement carbide cutting tools . Because edge polishing pads  the diamond particles bonded to ask some residual metal and graphite , in which the bonding metal or showed coalescence vein -like distribution state will reduce tool wear and life.
In addition there is a metal residue solvent , solvent metal in direct contact with the diamond surface . Lower (PDC) oxidation resistance and tool heat resistance , the cutting tool is not stable enough. Thick Diamond Tool preparation process is complex, because of the low melting point metals and their alloys and diamond has a high interfacial energy between . Diamond is difficult to be generally low melting point  PCD grinding wheel solder alloy infiltration. Weldability poor , difficult to produce complex geometry tool , it can not be applied TDF welding tool in high-speed milling . Diamond- coated tools can be applied to high-speed machining , because in addition to diamond coated tools have excellent mechanical properties, diamond coating process can be prepared any complex shape cutters for high speed machining aerospace materials such as aluminum alloy and refractory processing of non- metallic material such as graphite electrodes.

Analysis method of diamond grinding wheel cutting wheel

Here today for me to introduce to you a brief analysis about the method of diamond grinding wheel cutting attention to detail the relevant information , I hope to help you in the future when masonry drill bits  you can buy some used, please follow the small series together to look at the contents of the following describes it !
A grinding wheel in the Leads chipping is easy : with a larger angle of the main cutting tool grinding wheel , cut entry provenance easy to chipping . To solve this problem , using a circular blade , changing the main angle , so that the Leads stable. The feed amount of 1 ~ 1.5mm case chipping phenomenon did not occur .
Second, the chip in powder form : Cutting wheel chips in powder form , in the form of tool wear is flank wear , mainly exposed diamond grinding wheel abrasive wear.
Third, the cutting force and the cutting temperature is low : diamond composite sheet has a high thermal conductivity  4 inch circular saw blade of tungsten carbide 1.5 to 9 times , the copper 2 to 6 times , the cutting zone temperature quickly spread . Thus, PDC cutter cutting resin bond or ceramic bonded grinding wheel temperature , many times lower than the cutting of metal . Fourth, with the traditional turning tools, diamond composite sheet in the process of turning almost no dust fly, also able to effectively reduce the noise , diamond wheels to further improve the working environment is conducive to worker health.
 Second, we have to consider is the size of choice, when you want to select coarse grained diamond wheels and vice versa , when faced with ultra- fine grinding wheel to use powder .

Ceramic coated abrasive grinding wheel of introduction

The abrasive wheel for ceramic coating and metal bonded grinding wheel for which the same advantages , and now small will take everyone to know, I hope we can bring convenience .
Ceramic grinding wheel for the  bandsaw blades superabrasive grains coating shows with metal bonded grinding wheels for the same benefits: helps control between vitrified abrasive and potentially harmful chemical reaction. Titanium is used in such typical material coating superabrasive grains , grains of titanium coating helps to reduce binding agent in adverse chemical reactions may occur . The metal bonded grinding wheel , the coating is to protect the diamond abrasive grains from the bonding agent system; while in vitrified grinding wheels , the coating is to protect the system from the binding agent of CBN grains .
Similarly, the abrasive coating also enhances the gripping force . In the glass ceramic material used in grinding is not ' wet ' , or not with the surface of the uncoated abrasive grains combined well , so the abrasive coating of titanium carbide coated abrasive grains  hole saw blades can improve the wettability and increase gripping force . After grinding wheel diamond pen can be used to stop trench repair , you can also use the wheel cutting blade repairs, but to use the wheel when the usual mundane as possible to add more value appearing grooves.
Hand sharpening wheel using alumina and silicon carbide are greatly wheel, aluminum alloy wheel for carbon steel class tools, such as high speed steel cutting tools and object class steel drill bit . Silicon carbide grinding wheel for carbide tools .

Three main diamond cutting tool materials

Three main diamond cutting tool materials --- PCD, CVD synthetic single crystal diamond thick and performance comparison results: PCD welding, mechanical grinding and the highest fracture toughness, wear resistance and edge quality centered, worst corrosion  cbn grinding wheels resistance; CVD thick best corrosion resistance, mechanical grinding resistance, edge quality, fracture toughness and abrasion resistance centered weldability worst; synthetic single crystal diamond cutting edge quality, anti- the best wear resistance and corrosion resistance, weldability, mechanical cutting resistance and fracture toughness of the worst. Currently, high-speed cutting diamond tool (2500 ~ 5000m / min) aluminum an ideal tool material, but in the high-speed cutting steel and steel alloys Shique wear faster, the wear mechanism was mainly due to carbon and iron with greater affinity effect, especially at high temperatures the diamond easily react with the iron, so it is not suitable for cutting steel and its alloys.
We have zero defect management  fibre discs concept, through consistently. All along, the pursuit of perfect quality, it is also constantly improve the service system, care for your every need, through a sales and service network throughout the country to provide you with professional services. Diamond tool material is divided into single-crystal diamond (there are two kinds of natural and man-made, natural single crystal diamond expensive part is single crystal synthetic diamond substitute), synthetic polycrystalline diamond (PCD) and synthetic polycrystalline diamond and carbide composite blade (PCD / CC) and CVD diamond.
Single crystal diamond
Single crystal diamond cutting tool must be  sds hammer drill bits used for large particles (mass greater than 0.1g, the best path length not less than 3mm), mainly used in surface roughness, geometry, high precision and dimensional accuracy requirements of precision and ultra precision machining applications fields.

The performance characteristics of diamond grinding wheel

1, with high cutting speed can be achieved with a high cutting speed can reach 100 100 - 300m / s 300m / s, and long service life.
2, using sintered diamond and boron nitride grinding wheel binder, binder for the multi-layer resin, metal and ceramic, using  diamond cup grinding wheel sintered diamond and boron nitride grinding wheel binder, binder for  the multi-layer resin, metal, and ceramics, the maximum diameter of up to the maximum diameter of up to 600mm600mm; electroplated diamond and CBN grinding wheel method, the maximum diameter; electroplated diamond and CBN grinding wheel method, the maximum diameter of up to 1300mm.
3, the wheel of the mechanical strength of the substrate can withstand the high speed grinding cutting forces. High-speed grinding, safe and grinding the substrate can withstand the high mechanical strength of the high cutting force during grinding. High-speed grinding, safety and reliability is extremely high.
4, the appearance of sharp, abrasive bump height, and that can accommodate a large number of long chips. Look sharp, abrasive bump height, and that can accommodate a large number of long chips.
5, high precision grinding, wear diamond cbn wheel  a long time, often without trimming, its accuracy can meet the requirements of precision plus high precision grinding, wear a long time, often without trimming, its accuracy can meet the requirements of precision machining needs, can be avoided taper workpiece machining process, excellent wear resistance characteristics can enable enterprises to work needs to avoid processing the workpiece taper, excellent wear resistance characteristics of the enterprise can greatly reduce production costs, without dressing, especially suitable for grinding often production lines, often without downtime to significant savings in production costs, often without finishing production line, especially suitable for grinding, often without downtime to trim disc, much progress abrasive grinding wheels  can produce efficiency, expand production. Trimming disc, you can largely progressive production efficiency, expand production.
6, a variety of binders with high wear resistance, small grinding wheel wear, home and use more metal bond grinding wheel multiple binding agent has a high resistance to abrasion, grinding wheel wear is extremely small, multi-use metal bond grinding wheel at home agent, a resin bond, ceramic bond, electroplating method combines, in addition to use of the German wheel, resin binder, ceramic bond, with electroplating.

Exchangeable-head tools new progress

It is acknowledged that drilling is the most widely used machining process, both in machining centers, CNC lathes, or in special drilling machine, drilling can be carried out. Processing cost per hole, drilled hole quality and integrity are selected drill and process the key factors to consider when. Often you can put some relevant processing operations such as reaming, chamfer, expanding drilling and boring integrated in a tool, in the drilling easily accomplish together.
Replaceable drill tip drill in the late 1990s came, when the drill bit carbide drill tip wear, can easily be replaced without having to drill cutter body from the holder and / or remove the spindle . Each of the steel blade suitable for the given size range crown of different diameters, the user no need to drill a hole the diameter of each purchase of a specific drill size, which can save costs. Typically, drill cutter body can be covered with pore size of about 1mm, many vendors drill tool tip diameter diamond hole saw  increments of 0.10mm.
In the drill bit replacement carbide steel cutter body concept to guide the drill tip interchangeable modular reaming head cutters and system development, and the same success, allowing users to benefit greatly.
Replaceable drill tip drills advantages in the following areas:
(A) save a lot of machining operations and tool management costs;
(2) reduce the use of carbide cutter body material;
(3) longer tool life and hole machining predictability;
(4) reduces drill inventory;
(5) eliminates the need for regrinding the drill bit, back up the tool and the desired fluidity;
(6) loaded knife significantly shorten the time, because it is in the holder on the machine and replace the drill tip, without presetting, compensation and the knife.
In order to correctly select the drill type, you will need to correctly answer questions about drilling dimensions, tolerances and surface finish requirements, as well as machining tasks or workshop  brick saw blades economy and other issues. For the processing of diameter less than 12.7mm, taking into account the machining precision and performance, solid carbide drill bit is still the recommended solution; diameter greater than 25mm for processing (especially roughing), recommend the use of indexable insert drills. The power tool on the processing of more than 25mm or even 51mm diameter holes, the use of indexable drills particularly effective.
In the range of 12.7-25.4mm diameter between drilling, you can change the drill tip drills have become a common choice because it can provide both precision drill hole on capacity and cost-effective, measurable overall competitive advantage. Carbide drill tip with the concrete cutting blade  workpiece material and processing requirements for optimizing drill tip shape design features, and usually without regrinding, so replace each drill tip is new, its processing performance and all the other new drill tip identical and re-grinding of solid carbide drills can not do this.

For special non-standard tool drilling

Currently, a variety of large composite fastener holes required in the processing more, the machine becomes more and more of a challenge and complexity of a large number of deep hole machining. These are two completely different application areas, but the common denominator is carbide tipped saw blade  processed in order to obtain satisfactory results and competitive processing performance, you must use the customization tool.
Non-standard tool is ideal for cutting the parts completely or partially cutting tool is based on the concept has been proven standards such as the existing blade clamping device, shank and interfaces; it might be equipped with multiple criteria a dedicated blade holder, can be used as two or more standard tool usage; also be a special cemented carbide material and / or channel made of indexable inserts, the use of maximum efficiency, and to provide a longer, more stable tool life. Associated with non-standard tool also includes incomplete standards, as an alternative to standard tool with a very small deviation characteristics.
When you need to process more complex parts, the part of the various features require specialized non-standard tool solutions. This also applies to the processing of simple parts, because the non-standard solutions can eliminate production bottlenecks encountered. The non-standard tools as the best solution for many occasions, including most  cutting blades of the machining range, materials and type of industry, which is the most representative of most of the non-standard tool modular tooling solutions. These solutions are usually based on criteria such as blades, knife cards, tool interfaces, flute, anti-vibration system or tool holder clamping device based on various combinations. With unique properties accounted for purely non-standard tool nearly a quarter of the total number of non-standard tools, and similar to the standard tool for non-standard tools accounted for three quarters.
Processing areas of processing and deep parts made of composite material is that the main processing of the use of non-standard tool places, such composite materials are mainly carbon fiber ring saw blades  reinforced plastic (CFRP), and by stacking the metal support of the composite material of the material.
Deep processing is widely used in a variety of industries, most notably in the energy industry and the aviation industry. Some deep parts are usually difficult to process or that seem difficult to begin processing, but the use of non-standard custom tooling solutions can, through an efficient and secure way to easily solve this problem.

grinding large radial force

(1) Since the abrasive grinding wheel itself has a high hardness and heat resistance, it is possible to process high hardness materials such as hardened steel, carbide, etc.. (2) determine the characteristics of the grinding wheel grinding process system can make  abrasive grinding wheels even micro cutting, the general ap = 0.001 ~ 0.005mm; grinding speed is high, generally up to v = 30 ~ 50m / s; grinder stiffness; adopts hydraulic transmission Therefore grinding energy and affordable access to high precision (it6 ~ it5) small surface roughness (ra = 0.8 ~ 0.2μm). Grinding parts finishing the main methods.
 (3) As intense friction, leaving the grinding zone temperature is high. This can cause deformation of the workpiece to Diamond tools  produce stress, and even cause surface burns. Therefore, a lot of grinding coolant must be injected to reduce the grinding temperature. Coolant may also function as a lubricant chip.
(4) grinding large radial force. This will cause the machine - grinding wheel - workpiece system flexibility retreat, so that the actual depth of cut less than the nominal depth of cut. Therefore, the grinding will be completed when the light is not to be infeed grinding to remove the error.
(5) self-sharpening: abrasive grinding blunt, grinding force also increases, resulting in grain crushing or off and re-exposing the sharp edge features. Self-sharpening of metal grinding wheel  the grinding head to work in a certain time, after a certain time required for examination, manual trimming, to prevent the grinding force increases and cause vibration, noise and damage the workpiece surface.

Inner circle grinding mechanical transmission

 Inner circle grinding is generally divided into four types: wind-driven inner circle grinding, high-speed electric aerostatic bearing inner circle grinding, mechanical drive and electric grinding inner circle inner circle grinding.Wind-driven inner circle grinding: spindle with  concrete saw blades  a turbine driven by compressed air turbine rotates the spindle speed, spindle speed reaches 10000R/MIN. Moreover, small vibration, pressure can be adjusted stepless. And with regulators, filters and other accessories.Aerostatic bearing speed electric grinding inner circle: The aerostatic bearing (supply pressure is 40 ~ 65MPa), grinding system rigidity, both electric grinding characteristics, speed up 180000R/MIN, suitable for grinding a ~ 10MM hole.Inner circle grinding mechanical transmission: mainly by the spindle, bearings, sleeve body shell, flat supporting pulleys and other components. Then, after replacement of the long axis, is used to grind different bore diameter and  granite polishing pads length, for comparison, the use of low speed, the speed is generally lower than 2000R/MIN.Electric grinding inner circle: A three-phase asynchronous motor direct drive, and another by a high-frequency electric motor driven spindle speed of up to 50000 ~ 90000R/MIN. Output power is larger, instantaneous overload, speed characteristics hard, little vibration.enerally the heat generated by the grinding process will burn the workpiece, so you need to use coolant to promptly take the heat, this is called wet. However, grinding tools is a special application, as part of more complex shape, machining accuracy is relatively high, most of the processes set by manually, there is no way to use wet methods. In theory, the hardness of steel molds are high, and SG monocrystalline corundum grinding wheel is the best option.

the use of resin-bonded grinding wheel

Stainless steel toughness, high temperature strength, grinding force, thus requiring wheel has high strength, can withstand greater impact loads. The grinding wheel stainless steel with a ceramic multi-binding agent. Vitrified heat resistance, good corrosion  carbide tipped saw blade resistance, not afraid of wet, porous, not only to maintain the grinding wheel abrasive cutting, can obtain higher productivity, and can withstand greater impact loads. For cutting, grooving wheel large diameter thin, also can produce the resin binding agent, for grinding stainless steel parts. It is flexible, not afraid to shock, but the resin bond afraid alkaline solution, bear high temperature, when the temperature is higher than 150 ℃ will soften and lose strength. Thus grinding must be fully cooled. However, acid-resistant stainless steel and other materials in the grinding of the hole, the use of resin-bonded grinding wheel, grinding holes can improve the surface quality and avoiding burns.Hardness
Stainless steel grinding wheel hardness should be higher than normal carbon steel grinding a little softer, so  concrete diamond blades that the wheel has a good self-sharpening. Wheel strength is too high, not falling blunt abrasive, grinding wheel clogged evil, will cause the grinding force, grinding heat increases and the workpiece surface burns. This is for grinding stainless steel with particular attention to prevent. In addition, abrasive grinding wheel hardness also affects the degree of adhesion and stainless steel materials. Table 02 shows that the higher the hardness of grinding wheel, grinding wheel adhesion more severe. Of course, wheel hardness is too low, or excessive wear

three lines cut into the feed grinding wheel

This method machine adjustment and wheel dressing more convenient, radial cutting force is small, the workpiece thermal conditions are good, high precision machining, grinding acme screw up to three (JB/T2886-1992) highest accuracy, the surface roughness 0.2 to 0.4 microns. You can screw up a different angle grinding, teeth opened a different, a different aspect ratio of the workpiece, suitable for processing a variety  PCD grinding wheel of precision thread and ball screw, but the production is less efficient than multi-line grinding wheel, commonly used in single-piece, small-batch production.Over 2 wire feed grinding wheel vertical As a multi-line grinding of the cutting comb teeth also participate can be completed in a single pass of the workpiece grinding, high production efficiency, but is difficult molding wheel dressing, the large pitch, a large helix angle of the thread and the teeth shaped high precision thread should not be used, suitable for carbide grinding wheels  mass production of grinding teeth is simple, lower-precision thread.
 More than three lines cut into the feed grinding wheel
 This method is suitable for grinding small pitch, small thread lead angle, low precision and stubby threaded parts, and on the threaded grinding wheel spindle and the workpiece clamping tile cutting blades  rigidity demanding.Width of grinding wheel grinding force, grinding power, first of all wheel drive motor power have a reasonable margin. In addition, the main components of the machine should have high accuracy and sufficient rigidity. If higher precision grinding wheel spindle, spindle elongation cantilever should be as short as possible

In cutting wheel when it has the following characteristics

Wheel of traditional processing methods What are the limitations?
Wheel after roasting and curing processes, its size, shape and appearance of each respective position accuracy, can not reach the use of the technical requirements necessary after turning, research rubbing and grinding. The unit also due to the use of wheel and wheel consumption need not meet the requirements of the specification and application, it must be turning. As objective technical reasons, mostly outside the Diamond tools  traditional international knife bowl for turning. In the process of working with it, the wheel at high speed (300 ~ 400m/min) No. 45 driven by hardened tool steel thin-walled bowl rotation, and stops moving knife, remove the wheel excess amount. Since the processing bowl and the cutter wheel rotates at high speed in the formation of dust and noise processing large cutting depth and feed rate is very small, so the processing efficiency is low and synthesis of the high resolution, the operator break strength. Large particles such as the use of diamond tools, expensive, and because of the low bending strength of 4 inch saw blades  the diamond cutting easily damaged, it is formed when the cutting wheel cutting depth and feed rate is very small, the general only used for finishing.
(2) using the tool cutting wheel PDC What are the characteristics?
Polycrystalline Diamond Compact (PDC), was developed in the 1970s into a superhard cutting tool information. It is made with the tool being used to cut a variety of non-ferrous metals and non-metals, and can be used to cut wheel. In cutting wheel when it has the following characteristics:
(A) has a high hardness and wear resistance: the hardness of polycrystalline diamond layer common in HV7000 ~ 9000, and the differences in each direction, is a common abrasive wheel hardness 2 to 4 times. Cutting wheel with it a high degree of durability, the volume wear ratio wet saw blades  up to 1/13 million. Quality wear ratio up to 1/300 000, thereby reducing the consumption of capital.

monocrystalline diamond tool application

the crystal structure of the highest density of metal atom such as axial face-centered cubic crystal. Diamond crystal connected between the carbon atoms bond to sp3 hybridized covalent bond, with a strong binding force, stability and direction. The unique crystal structure of diamond in nature it has the highest hardness, stiffness, refractive index and thermal conductivity, and high wear resistance, corrosion resistance and core drill bits  chemical stability.
Excellent characteristics of single crystal diamond meet the precision and ultra-precision cutting tool material for most of the requirements and is ideal for precision cutting tool materials. Diamond without internal grain boundaries uniform crystal structure so that the tool cutting edge can theoretically reach the atomic level flatness and  core bits for concrete sharpness, cut thin cutting ability, high precision, cutting force is small; their high hardness and good wear resistance resistance, corrosion resistance and chemical stability can ensure that the tool has a long life, so that it can continue for a long time of cutting, the tool wear can be reduced because of the precision of the parts; its high thermal conductivity can  cbn grinding wheels be reduced and the cutting temperature parts thermal deformation.
Single crystal diamond tool in the machining field has an important position, is widely used as a mirror, missiles and rockets navigation gyro, computer hard disk substrate accelerator electron gun, such as ultra precision mirror of parts. Can also be used in the manufacture of single crystal diamond eye, brain surgeon's scalpel, thin slicing knives and other bio-medical tools.

diamond grinding wheel grinding necessary to have the appropriate conditions

In order to achieve optimal grinding, diamond grinding wheel grinding necessary to have the appropriate conditions, which apply to both, the layout view is a microscopic plastic, from the microscopic point of view is the diamond wheel layout depicting largely microscopic Layout resolution of the diamond wheel grinding action.
1 This means cutting forces and temperatures largely determined by microscopic layout resolutions, based on these reasons, it should be possible to Dresser good, in the grinding process, because  diamond wire saw not only lead to the inevitable tool wear on the grinding wheel at the micro layout changes, and at the micro layout has also changed.
(2) In order to guarantee the workpiece and the grinding process Gongyi accuracy, diamond grinding wheel and eliminate the need for trimming. Includes shaping and trimming dressing, plastic dash is a wheel dimensions and concentricity optimization, while sharpening the cutting wheel is progressive order, add abrasive projection height. In the process of the elimination of residual chips from the pores of eradication, so  4 inch saw blades that the pore space of the chip and can no longer be fully utilized.
3 trimming stuff is divided into fixed and rotary dresser dresser, dresser into a single fixed point and multi-point trim trimming, single point diamond dresser top as long as the stuff single diamond rotary dresser with superiority It can also be used for profiling molding trim trimmed trimmed about molding, diamond grinding wheels and CBN grinding wheels are molded into something negative generalization, and generalization are cutting blades  copied directly to the front wheel, the feed is in the radial direction on.
Profiling trimmed with standard type face, the feed system is a system in multiple directions by the CNC control together, the results from the trimming trimming stuff and coolant concluded together also suffered the impact of other parameters such as touch ratio Ud, dressing feed Rate qd and dressing feed aed, parameters of diamond and cubic boron nitride grinding wheel cutting wheel features have a crucial impact.

diamond truing tool used for attention

1 using the new dresser, before finishing the last feeding should exit. Many crisp diamond dressing tools, at the beginning of his contacts with the wheel, are easily damaged.
(2) in an inclined angle of 10 ~ 15 ° diamond dressing tool head mounted to point to the direction of rotation of the wheel.
3 securely installed or clamping dresser dressing tool, not the tool head hanging too long.
4 Where possible, try to use  carbide tipped saw blade coolant. Throughout the finishing time, with coolant pouring dressing tool and the wheel contact point.
5 In the dressing beginning from the highest point of repair from the grinding wheel, usually the middle wheel.
6 Note that except for a slight amount of repair. In addition to the maximum depth of repair, except for tinkering: 0.001 to 0.002 inches. Except for finishing: 0.0005 to 0.001 inches.
7 Press the relevant manuals choose the right lateral quickness. The slower moving laterally (in the allowable range), the lower surface roughness obtained wheel.
8 must be within the specified time interval for dressing the grinding wheel to prevent the wheel blunt, the grinding force increases.
9 at predetermined intervals, the toolholder the dressing tool rotating 1/8 turn, to ensure that the dressing tool is always sharp.
10 When the diamond dresser or tool head blunt or obvious change in peacetime, should be timely adjusted and replaced.
11 According to the diameter of  metal grinding wheel the wheel, the amount of a reasonable choice of diamond CARAT (pure diamond content), the larger wheel diameter, the larger the value of the selected CARAT diamond.
Incorrect:
1 diamond dressing tools in place to clamp head, be careful not to bump into the wheel surface.
2 can not be a single point diamond dressing tool head vertically aligned wheel center to be inclined generally 10 ~ 15 °.
3 heat dressing tools can not be "quenched" (refers to sudden cold). In the dry dressing must be kept trimmed twice the interval sufficient to heat the dressing tool cooling.
4 wheel surface can not be assumed to concrete cutting  have ideal flat. When trimming the beginning to find the highest point of the wheel position for trimming.
5, if possible, in addition to the amount of each wheel of the repair, the radius of the wheel can not be more than 0.001 inches. In addition to the amount of the repair is too large diamond dressing tool head can cause premature wear and often broken.

the stainless steel grinding wheel

he hardness of the stainless steel grinding wheel is generally within the range C ~ N, where J, K, L, M use of the wheel. Microcrystalline corundum grinding wheel face, the selection of appropriate hardness J. In addition, large diameter grinding wheel face bore or grinding, the grinding wheel and the workpiece contact surface, the wheel is easy step pads  to passivation, to be elected lower hardness wheel; grinding forming surface, should increase the hardness of the wheel , otherwise they will be faster wheel wear and damage-surface precision grinding wheel; grinding hollow and thin wall of the workpiece, the workpiece deformation, and  concrete blades therefore should adopt a softer wheel; discontinuous surface grinding, abrasive easy to fall off, you should use a hard wheel.Organization
Stainless steel toughness, strong adhesion, to avoid clogging the grinding wheel, grinding wheel organizations should  diamond cup wheels choose a more loose, generally 5-8 is appropriate. Back to eat large knife and a large contact area should be selected organization loose wheel, the surface roughness Ra values ​​that require low or form grinding should be used in a more compact organization of the wheel.the wheel before use, to floating tapping with a mallet, the sound should be crisp, metallic sound! If the sound is muffled, for the voiceless, usually in transit collision, absolutely not allowed!

Width of grinding wheel

Width of grinding wheel grinding force, grinding power, first of all wheel drive motor power have a reasonable margin. In addition, the main components of the machine should have high accuracy  diamond blade saws and sufficient rigidity. If higher precision grinding wheel spindle, spindle elongation cantilever should be as short as possible, a reasonable choice of spindle bearing structures, such as hydrostatic bearing stiffness and rotation to obtain better accuracy. Workpiece headstock spindle and tailstock sleeve overhang minimize, the choice of a larger size, shorter overhang top, and as far as possible so that the headstock, tailstock rigid consistency. Tailstock sleeve spring should have sufficient clamping force. Wheel rack rails  tile saw blade should also have sufficient rigidity.
 Width of grinding wheel grinding heat large, so should supply sufficient grinding fluid. Estimated according to the following empirical formula Q = bs / 2 (where Q - Flow L / min bs - Wheel width mm).
 Width of grinding wheel, grinding wheel airflow generated large grinding fluid nozzle and the wheel guard should be tuck point blades  set block air baffle, the shape of the nozzle should ensure grinding fluid spray to the entire width of the grinding wheel, and a smoke fog devices.
 Width of grinding wheel grinding with the best grinding force control device, so that both or full width of grinding wheel performance, and avoid overload grinding, in order to ensure safe operation.

the circular blade in operation when beating deal

First, the circular blade in operation when beating deal?
Circular blade in operation when beating Processing Processing Cheats: Check the circular blade installation is in place; inspection work cut foot mounting surface if there is debris; checking the gap between the inner diameter of the rotating shaft.
Second, the circular blade crack how to do?
How do deal with circular blade crack Cheats: Before use, finger fingers hooked blade gently with a wooden hammer to knock several times, listening to the sound; after use: When installing the  mounting surface can exist due to hard objects, fixed blade cracked when the force wood drill bits  resulting ; addition to the above two cases, can break due to human or blade itself is a problem.
Third, the circular blade blade nicked how to do?
Nicked circular blade blade handle Cheats: cut legs for five minutes without idling and began to work; component foot diameter is too large, you can adjust the angle of blade to handle specific angles according to the diameter to the size of the foot elements.
Fourth, continue to cut feet  wet polishing pad circular blade element how do?
Circular blade components continue to deal with the foot cut Cheats: whole foot or part of PCB components clearly score, check the PCB thickness and material, whether due to high temperature during welding deformation caused by PCB; tracks with adjustable blade gap distance smaller; whether Yuan blade used for too long, there were minor gaps without grinding.Circular blade to achieve a cost-effective application of the coating may depend on many factors, but for each specific processing applications, usually brick saw blades  only one or several circular blade coating viable options. Circular blade coating and its properties are correct choice could mean significantly improved processing performance with almost no improvement between the two. Depth of cut, cutting speed and coolant are likely to circular blade tool coating application effect of impact.
Since the processing of the workpiece material in one kind, there are many variables, so selection of the circular blade coating to determine the best ways is through trial cut. Coating suppliers are constantly developing more new circular blade

Diamond wheel is grinding carbide

glass, ceramics, precious stones high brittle materials effects tools. In recent years, with high-speed grinding ultra-precision grinding technology developed rapidly, put a higher demand on the grinding wheel, ceramic resin bonded grinding wheel has been unable to meet production needs, because of its combination of metal bonded grinding wheel, high  strength, good formability, long life and other significant characteristics of wood drill bits  the production has been widely used. Metal bond diamond wheel manufacturers in different ways according to a major sintering, plating two types. In order to give full play to the role of super abrasive abroad from the 20th century, the early 90s with a high temperature brazing process to develop a new wheel, ie high temperature brazing monolayer superabrasive grinding wheels, this wheel is still in the current domestic research and development stage.
Ceramic diamond wheel vitrified diamond grinding wheel with diamond and vitrified common characteristics, and general 4 inch saw blades  corundum, silicon carbide grinding wheel compared to its grinding force, grinding temperature is relatively low, the wheel wear is relatively small; can be adapted to each species coolant effect; grinding wheel is good shape retention, high precision grind the workpiece; wheel has more pores, grinding and heat conducive chip, clogging, easy to burn the workpiece; wheel good self-sharpening, finishing a long time interval, trimming easier. Therefore, vitrified diamond grinding wheel used in some foreign countries is increasing.
Sintered diamond wheel
Sintered metal-bonded grinding wheels mostly bronze and other metals as a binder, with the manufacture of high-temperature sintering method, which combines high strength, good formability, high  ring saw blades temperature, thermal conductivity, good wear resistance, long life, can withstand greater loads.
Electroplated diamond grinding wheel:
① plating process is simple, less investment, ease of manufacture;
② without dressing, easy to use;
③ monolayer structure determines it can reach very high operating speed, the current foreign countries have been as high as 250 ~ 300m / s;
④ Although only a single layer of diamond, but there is still enough life;
⑤ For high accuracy, roller wheels, electroplated unique manufacturing method. Precisely because of these advantages, plating wheel speed, ultra-high speed grinding occupy undisputed dominance.

Monolayer brazing diamond wheel introduction of some of the major

Using scanning electron microscopy showed white gold diamond silver wrapping around , X-ray diffraction analysis confirmed Cr3C2 generation, this carbide layer is achieved Diamond
Stone and steel substrate bonding strength between higher . Diamond grinding experiments also confirmed that tile saw blade  there will grip strength, high temperature brazing monolayer diamond grinding wheel life and grinding efficiency than electroplated sand
Wheel has been significantly improved . Monolayer coating high temperature brazing diamond diamond wheel as poor thermal stability , 800 ℃ when the transition occurs graphite , so the higher soldering temperatures will inevitably lead to
Leaving diamond diamond intensity decreased thermal damage ; while binders harmful elements make diamond graphitization corrosion , it can be coated with a layer of diamond surface active metal
And then brazing alloys . Abrasive plating techniques include chemical vapor deposition, ion plating, thermal evaporation , vacuum evaporation plating such as micro- chemical vapor deposition Cr, Ti, vacuum micro evaporation plating can improve the surface properties of diamond . Brazing process , mediated by virtue of the role of the coating , in addition to diamond and easier to achieve strong metallurgical bond between the chemical bonding , the hot air as an oxygen barrier coating on leaving the role of carbon atoms in the diamond surface reacts with oxygen speed is greatly reduced, while strong carbide forming coating elements and diamond surface carbon atoms react carbide , closed diamond surface dangling bonds , increasing the oxidation resistance , thus inhibiting binding agent Fe, Co, Ni and other elements of the diamond itself, graphitization of diamond etching process, so that after brazing still maintain the original strength of the abrasive grain type . Brazing steel substrate when the first plating layer is pre- Ni-P alloy ( melting point 880 ℃), and the arrangement of the diamond film on the alloy layer , 1050 ℃ argon brazing 5min, then cooled to room temperature. Grinding tests dry core drill bits showed that the diamond coating and binding agent as a good wettability , and effectively avoid the grit off, greatly improves the performance of the grinding wheel , to achieve a substantial increase in processing efficiency wheel life .
It should be pointed out that as the diamond coating and binding agent between the deposit with adaptability , so only suitable binder coating process to make optimum physical and mechanical properties of diamond . Single high temperature brazing problems and countermeasures wheel kept at home and abroad wheel of high temperature brazing monolayer Although achieved good results , but its manufacturing process needs to be further improved. Currently retained, mainly as follows: one in what brazing process to produce the diamond bonding interface bonding strength with high chemical diamond polishing pads  metallurgical bonding ; two suitable binding agent layer thickness and uniformity control ; three abrasive reasonable and orderly arrangement . For improving the bonding strength of the diamond and the brazing material , its key diamond brazing , brazing material between the metal substrate to produce three chemical metallurgical bonding , the solder alloy should contain a strong carbide forming elements ( such as Ti, Cr, V, etc. ) , and to seek lower temperature brazing of diamond to minimize the damage. Before brazing filler metal abrasive orderly arrangement to improve the consistency of thick cloth after brazing binder layer thickness uniformity is also very important. Work surface with abrasive wheel arrangement reasonably abrasive industry has been committed to the pursuit target , and is expected to achieve single grinding wheel .