Grinding of concrete diamond blades and other woodworking machinery needs time to stand in the world

Our saw blade grinding machine and other woodworking machinery standing in the world take time. With the use of new materials , woodworking machinery and tools development trend of diversification. In the wood GUSHI cutting discs  processing industry, the earliest use of the tool material is high-speed steel , carbide and diamond , such as with the use of super-hard materials , the development of increasingly sophisticated woodworking tools , embarked on a new level , correlation detection techniques have emerged breakthroughs.
Although China woodworking machinery development has been greatly improved, but the quality is still less than in the world of wood  GUSHI tct circular saw blades in the forest machine place. As market competition more intense , efficient, high-precision requirements are also increasing. Woodworking machinery production and testing to NC , has become inevitable market-oriented and trends.
Currently , the detection of woodworking tools in general or artificial visual judgment , due to the low efficiency of manual inspection , cumbersome and complex , and the human cost of testing personnel and management costs continue to grow , the traditional manual detection mode has to keep up with the situation development. Nowadays , more and more popular in the GUSHI carbide tipped saw blade  woodworking tool manufacturers choose intelligent automatic testing equipment.

affect wood saw blades cutting parameters

Sawing sawing parameters of the main parameters of diamond saw blades : peripheral speed , feed rate , the transfer speed. Circumferential velocity : in practical work , diamond saw blade line speed is equipment conditions, limitations, and the quality of the blade sawing stone nature. From the best blade life and cutting efficiency , the linear GUSHI turbo diamond blade  velocity of the blade should be selected according to the different nature of the stone . When cutting granite , the blade can be selected by the line speed in the 25 ^} 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 can reach 35 ^} 50m / s. The amount of feed : feed quantity is involved diamond wear , effective sawing , saw the forces and vital parameters were sawing stone  GUSHI metal grinding wheel by nature . Generally speaking , when a higher line speed diamond saw blades , you should select a small depth of cut.
Feed rate: Feed rate 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 as marble, may be  GUSHI cutting discs 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 .

Some reasons concrete diamond blades wear

(1) diamond size: diamond particle size used in the range of 30/35 to 60/80. The more hard rock, should be selected with a finer granularity. Because under the same pressure conditions, the more detailed the GUSHI turbo diamond blade  more diamond sharp cut in favor of hard rock. Further, the general requirements of a large-diameter blade cutting efficiency high, the particle size should be selected with a coarser, such as 30/40, 40/50; lower small-diameter blade cutting efficiency requires a smooth cross-section of rock cutting, should to a smaller particle size, such as 50/60, 60/80.
(2) Segment concentration: the so-called diamond concentration, refers to the density distribution in the working layer of diamond carcass (ie, the weight of the diamond contained within the unit area). "Norms" provides the carcass per cubic centimeter work containing 4.4 kt diamond, its GUSHI carbide saw blades  concentration was 100%, with 3.3 karats of diamonds, its concentration was 75%. Represents the volume concentration of the volume occupied by the number of diamond agglomerates, and that, where a concentration of 1/4 volume of the total volume of diamond is 100%. Increasing the concentration of diamond is expected to prolong the life of the blade, i.e., reduced because of the increased average concentration of each piece of diamond cutting forces suffered. However, increasing the depth of the blade will increase the cost, so there is a concentration of the most economical and the concentration increases with the shear rate increases VS. (3) the hardness of head binders: In general, the higher the hardness of the binder, the stronger its wear resistance. Thus, when a large rock cutting abrasive, hardness should be high binding agent; when cutting soft rock material, the hardness of the binding agent should be low; when sawing hard and abrasive rock large, the hardness of the binding agent should be moderate . (4) force effects, temperature effects and grinding damage: cutting stone diamond saw blades in the process will be subject to centrifugal force, cutting power, cutting hot alternating load effect.
As the force and temperature effects caused by diamond saw blade worn donate damage.
Force effect: the cutting process, the saw blade to be  GUSHI carbide drill bits subjected to an axial force and tangential force. Because of the force acting radially and in the circumferential direction, so that the wavy blade axially, radially dish-shaped. Both can cause deformation of the rock section is not straight, stone waste more time sawing noise, vibration intensified, resulting in diamond caking early damage, reducing blade life. Temperature effect: the traditional theory: the effect of temperature on the blade process mainly manifested in two aspects: First, cause agglomeration of diamond graphite; Second, causing thermal Ili diamond and diamond particles resulting from the carcass of premature loss . New research indicates that: the heat generated during the cutting process the incoming primary agglomeration. Arc temperature is not high, generally between 40 ~ 120 ℃. The abrasive grinding points, but a higher temperature, generally between 250 ~ 700 ℃. The average temperature of the coolant only reduce the arc zone, the temperature of the grains was less affected. Such temperature does not result in charring of graphite, but will occur between the abrasive friction properties and the workpiece changes, and to thermal stress between diamond and additives, which led to a fundamental failure mechanisms diamond bend of. Research shows that the temperature effect is to make the maximum impact factors blade breakage.

Diamond tools industry development situation analysis of the reasons

Diamond tools for its unparalleled performance advantages become the accepted , the only effective brittle nonmetallic materials processing tool that broad range of applications , and the continuous extension . Currently , diamond tools are not only widely used in construction , stone processing GUSHI abrasive flap wheels  industry , automotive industry , transport industry, geological survey and defense industry and other fields , but also in precious stones, medical equipment, wood , glass, steel , stone handicrafts, ceramics and composite non-metallic hardware many new areas of brittle materials continue to be applied , the demand for diamond tools is a significant increase year by year . Especially in recent years , and its main downstream industry has been rapid development, such as our country has become the world's largest stone production and processing countries ; China's construction  GUSHI tct circular saw blades industry is also more than 20% annual growth rate , and so on . Development of downstream industries to become diamond tool industry to provide a broad market space. Meanwhile, with the continuous improvement of diamond tool performance , functionality continues to expand, its scope of application has been gradually extended to the semiconductor , aerospace , information and many other areas , these new applications, new markets will open up the GUSHI Bcircular blades  space of the diamond tool industry . Industries have been expanding, competitive advantage is gradually emerging with the rapid take-off increasingly sophisticated synthetic diamond technology and China 's economy , China has had more diamond tool manufacturing technology accumulation and progress , with a strong manufacturing capacity. Because of the great advantages of Chinese enterprises on labor costs , coupled with the trend of technology research and development to catch up on the hair , making our enterprise has obvious advantages in the product price. Rapid growth in market demand , local companies have launched diamond tools .

wood saw blades of some of the major categories

Saw classification
In today's industrial production, life, saw the use of one of the most common, the most widely used, the product range of the  GUSHI turbo diamond blade most complex tool.
Because of this, we need to classify from a different perspective:
One, depending on the material classification
HSS film (HSS saw blade), solid carbide saw blades, hacksaw tungsten film, alloy tipped saw blades, diamond saw blades, etc.
Second, depending on the application classification
Cutter blades, machine saw, hand saw, metal GUSHI stone polishing pads  special blade (aluminum blade, blade cut copper, stainless steel blades, etc.), pipe cutting circular saw blades, wood with a saw blade, stone blade, Qieya Ke Li saw blades
Third, the tooth can be classified according to
Toothless saw blades, triangular tooth saw blade, circular saw blade teeth, staggered tooth saw blade, the level of tooth saw blade, coarse tooth saw blade, tooth saw blade, fine-tooth saw blade, tipped saw blades
Fourth, the coating classification
White hacksaw piece (character), nitride blade (black), titanium blade (gold), chromium nitride (color), etc.
Five other classification and GUSHI concrete polishing pads  call
Cutting blade, cutting blade, cutting blade, cut saw, the overall blade, tipped saw blade, thin blade, etc.

On the next to improve the quality of high-quality concrete diamond blades technical solutions

Aligned with the status quo, the end of Britain repeatedly theory, a set of production efficiency, quality diamond saw blade skills programs available.
1, the choice of the production function stable, coarse particles, heat stable and good (ti and tfi straight near to) the high-strength diamond. What is essentially a diamond diamond carcass must process conditions under fixed on the operating base, mainly by diamond grinding agent, not the same as cutting role to process the stone. Thus, the original data (diamond) quality, particle size and concentration on the diamond thing has a decisive role.
 2, although charcoal powder into a strong element of progress diamond control force. In the processing of diamond saw blades, diamond blade carcass if there is a good operating force, diamond blade is a distinguished, not prematurely fall, when cut sharp, high power. Usually top end of the outer plating layer of diamond strong carbon compound, the constituent metal elements, such as plating, titanium, chromium, nickel, tungsten, etc., in order to progress with the matrix powder of diamond bonded and sintered at high temperature to avoid favor diamond After oxidation and graphitization; other top end of the carcass can also be powder, carbon powder of a few strong increase of elements, such as: molybdenum, chromium, tungsten powder. Because this type of powder gold, moisture resistance and better affinity diamond, diamond sintering metal carcass appearance constitute carbide alloys, diamond and matrix metal in favor of chemical bonding and Metallurgy contact, and greatly improved the carcass diamond manipulation force.
  3, to improve the diamond particle size ratio. Traditional ratio, the sharp tip to more, spend more coarse diamond, and vice versa with a fine diamond. Of course yes, but it has been less than optimal operating power. Because the hardness and elastic modulus of diamond art high temperature GUSHI abrasive grinding wheels  sintering is difficult when the onset of plastic deformation. Selected ratio, before sintering progress bulk density of the diamond particles on the progress of the tool wear ratio is advantageous. Britain at the end repeated test results usually head coarse, coarse, fine diamond particles composed of three kinds, the optimal granularity share 1:0.0227:0.071. 4, the choice of ultra-fine powder and pre-alloyed powders. Ultrafine powder sintering temperature dropped in favor of progressive matrix hardness. The pre-alloy powder, the top end of the three-dimensional mixing, greatly reducing the touching moments powder and air, to avoid premature loss of the low melting point metal segregation and contribute to the progress of the strength of sintered products, increase the operating force of the diamond.
 5, increasing the excess of rare earth  GUSHI concrete ring saw elements (such as lanthanum, cerium, etc.) in a matrix powder. Contact agent can significantly decrease the wear features progressive diamond saw blade to cut the power.
  6, a selection of cold thermal sintering process, maintain vacuum sintering atmosphere. Top end of the cold tip after sintering is reflected in a very sharp cutting process, many progressive power production while maintaining a vacuum sintering atmosphere to avoid oxidation of the powder, activated sintering, both the head progress function and prolong the graphite mold The number of longevity, but also to decrease production costs.
  7, the correct welding technology, nowadays Diamond Park saw both use high-frequency welding machines to weld, the  GUSHI colde saw blade welding head is easy to show the second "burn" and head off appearance. Not only unsafe, and the impact of production, and therefore should be used in high-strength, permeability good silver solder pieces for welding production.

Some applications use glass blades

 It should be noted that the pre-alloy powder has been laser welded diamond saw with wood powder material of the buffer layer growth of the target object of [17,23], because: the pre-atomized powder alloy powder manufacturing process used to ensure Average ingredients conducive compressive and flexural strength improved sintering products; may reduce the brick saws  sintering temperature and shorter sintering time, especially the fate of more obvious when using ultrafine or nano pre-alloy powder; favor of pre-alloyed elements diversification and reduce the amount of cobalt. Built with reinforced concrete for large-building, with a diamond wire saw cutting orderly enumeration is very convenient, and did not happen very big noise and dust.
  2 welding process laser welding diamond saw blade woodworking are differences thick welding dissimilar materials, the impact of the tile cutter  identity of many of its welding quality, collecting the preparation before welding, laser beam quality, laser power, welding speed, focal position of the laser beam offset , the angle of incidence of the laser beam, care of the gas flow, and now in this regard should be said that the fighting strength mature.
 But the transition layer can not contain low melting point metals such as tin and other elements, these elements easily because of evaporation and vaporization stomata occur, but can intervene from a small amount of solid solution strengthening, adding to abrasion and cut and weld concrete polishing pads  porosity dip  r mn elements. Thus, in the process of these spaces can easily be metal shavings clogging the worst is leading to "burn" the work and become waste. , In the beginning of cutting and curb cutting, do not feed too fast to avoid broken teeth and damaged.

wood saw blades are the most commonly used wood products processing and cutting

Carbide saw blade is the most commonly used wood products processing and cutting tools, carbide saw the quality and the quality of processed products are closely related. Proper selection of reasonably carbide saw blades for improving product quality, shorten cycle times, reduce processing costs is significant. Optional carbide saw what to pay attention to? Contains tooth carbide saw blades, angle, number of teeth, blade thickness, blade diameter, carbide, etc. Most types of parameters that determine the processing capacity of GUSHI diamond polishing tools  the saw blade and cutting. When you select the correct selection of the blade to blade parameters based on need.
Tooth, tooth commonly have flat teeth, Dou tooth, trapezoidal tooth, inverted trapezoidal tooth (Figure 1). Flat teeth the most widely used, mainly for ordinary wood sawing, this tooth is relatively simple, rough kerf, slotting process operating level during tooth formation can bottom. Dou teeth sawing kerf quality is better for cutting all kinds of wood-based panels, plywood. Trapezoidal tooth suitable sawing plywood, fire board, obtain higher cutting quality. Inverted trapezoidal tooth saw blade used in the bottom slot.
 Zigzag zigzag angle is in the cutting position. Serrated cutting angle affects the performance results. Greatest impact is on the cutting rake angle γ, the angle α, wedge angle β. Rake angle γ is serrated cutting edge angle, the greater the cutting rake angle more brisk, rake angle generally between 10-15 °. After the angle is the angle between the machined surface of the sawtooth between its role is to prevent the serrations machined friction surface, the smaller the angle the greater the friction, the more smooth the processing products. After the general value of carbide saw blade angle 15 °. Wedge angle is derived from the anterior horn and posterior horn out (Figure 2). But the wedge angle is not too small, it plays a role in keeping the teeth, according to strength, heat resistance, durability degrees. The rake angle γ, the angle α, the wedge angle β of the three equals 90 °.
Jagged teeth, teeth more generally, the GUSHI concrete polishing pads  more the cutting edge per unit time, the better the cutting performance, but required more and more carbide cutting teeth number, the price of the blade is high, but too dense serrated , the chip between the teeth becomes smaller, the heat is easy to cause the blade; sawtooth excessive addition, when the feed amount of mismatch, then cut per tooth is small, the friction will increase with the workpiece edge, the life impact of the blade . Typically tooth pitch 15-25mm, should be selected based on a reasonable number of teeth sawing material.
  The thickness of the blade from the saw blade in theory, we hope the thinner the better, is actually a kerf consumption. Materials and manufacturing processes carbide saw blade sawing board determines the thickness of the blade. To consider when selecting blade thickness from work and the stability of the blade sawing materials. Diameter and thickness of the blade used for cutting and sawing equipment related artifacts. Blade diameter is small, the cutting speed is relatively low; blade diameter saw blade and  GUSHI metal grinding wheel cutting equipment requirements will be higher, while cutting efficiency is high profile, angle, number of teeth, thickness, diameter, species such as a carbide combination into a whole series of parameters hard alloy saw blade, and with a reasonable choice in order to better play its strengths. Various parameters carbide saw blades should be added choose? Carbide saw blade manufacturing companies can not do so many specifications saw, according to the law and according to the current preferred specific factors wood processing enterprises equipment, materials and other components of the current series of specifications used carbide saw blades. This helps us choose carbide saw blades, but also conducive to the alloy saw blade manufacturing enterprise scale production.

Diamond drill bit for drilling stone parameters

 Drilling in stone, because of relatively high speed movement between

the diamond drill and stone complex tribological phenomena arising in

the contact interface. Friction  GUISHI metal grinding wheel 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 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 GUSHI stone polishing pads  processing costs, improve processing

quality.
   Experimental conditions
  Using Cu-diamond tip metal powder, diamond particle size of 60 to 80

mesh, using pressing sintering method, the high speed steel cylinder

head welding. 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 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

conducted under dry cutting conditions, machining state shown in Figure

1.
  Analysis
  3.1 feed temperature affects the speed of
  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  GUSHI concrete polishing pads 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 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.
  3.2 Effect of the number of revolutions of the spindle temperature
 The feed rate of 15mm/min, spindle speed was 300rpm, 400rpm, 500rpm,

diamond drill bits and drilling the surface temperature of the time

when drilling marble curve. Overall, the temperature rises with

increasing linear time. Also can be seen from Figure 5, the temperature

increases with the spindle speed. However, the temperature rise is not

obvious. When the spindle speed reaches 500r/min, the maximum

temperature of 143 ℃. Increased spindle speed. Diamond particles to

increase the number of friction per unit time and stone, long exposure

time, thereby resulting in the surface temperature increases.
Effect of temperature on the surface properties of the stone
Spindle speed of 300rpm, when the feed rate is 15mm/min. Processing of

different stone diamond drill surface temperature averages. As can be

seen from Figure 5, when the diamond drilling granite surface

temperature reached a maximum of l50 ℃, while the lowest surface

temperature processing of sandstone, is 30 ℃; temperature during the

processing of marble is 70 ℃. Stone learned through performance,

granite density 2.5 ~ 2.7kg/cm3, the compressive strength of 120 ~

250MPa, marble density of 2.5 ~ 2.7kg/cm3, compressive strength of 47 ~

120MPa, sandstone density 2.2 ~ 2.5kg/cm3, compressive strength of 47 ~

120MPa. Three stone density basically the same, but far greater than

the compressive strength of granite, marble and sandstone, almost twice

the marble and sandstone. Stone intensity increased, the cutting forces

increase, diamond tool wear serious, leading to diamond drill the

surface temperature. Can be seen from Figure 5, the surface temperature

of the diamond tool machining granite processing time is 2 times

marble, sandstone five times. You can see from the processing of the

experiment, when dry cutting granite, diamond tool surface temperature

rises rapidly, while the high temperature, resulting in a diamond

cutter head off. Granite thermal conductivity 3.49W/mK, while the

thermal conductivity of copper is 370.49W/mK, it can be seen for most

of the heat is the heat conduction through the diamond drill, which led

to a sharp increase in the surface temperature of the diamond drill

bit, Diamond badly worn.
 Conclusion
 When using diamond drill bits manufactured stone, spindle speed and

drilling speed machining parameters a great influence on the tool

surface temperature. Tool surface temperature increase with spindle

speed and feed rate increases. Diamond drill surface temperature

increases with increasing drilling time, while time is proportional to

the drilling.

In the selection of carbide saw blades which should be noted when

Contains tooth carbide saw blades, angle, number of teeth, blade thickness, blade diameter, carbide, etc. Most types of parameters that determine the processing capacity of the saw blade and cutting. When you select the correct selection of the blade to blade parameters based on  GUSHI diamond discs need. Tooth, tooth commonly have flat teeth, Dou tooth, trapezoidal tooth, inverted trapezoidal tooth (Figure 1). Flat teeth the most widely used, mainly for ordinary wood sawing, this tooth is relatively simple, rough kerf, slotting process operating level during tooth formation can bottom. Dou teeth sawing kerf quality is better for cutting all kinds of wood-based panels, plywood. Trapezoidal tooth suitable sawing plywood, fire board, obtain higher cutting quality. Inverted trapezoidal tooth saw blade used in the bottom slot. Zigzag zigzag angle is in the cutting position. Serrated cutting angle affects the performance results. Greatest impact is on the cutting rake angle γ, the angle α, wedge angle β. Rake angle γ is serrated cutting edge angle, the greater the cutting rake angle more brisk, rake angle generally between 10-15 °. After the angle is the angle between the machined surface of the sawtooth between its role is to prevent the serrations machined friction surface, the smaller the angle the greater the friction, the more smooth the processing products. After the general value of carbide saw blade angle 15 °. Wedge angle is derived from the anterior GUSHI abrasive flap wheels  horn and posterior horn out. But the wedge angle is not too small, it plays a role in keeping the teeth, according to strength, heat resistance, durability degrees. The rake angle γ, the angle α, the wedge angle β of the three equals 90 °. Jagged teeth, teeth more generally, the more the cutting edge per unit time, the better the cutting performance, but required more and more carbide cutting teeth number, the price of the blade is high, but too dense serrated , the chip between the teeth becomes smaller, the heat is easy to cause the blade; sawtooth excessive addition, when the feed amount of mismatch, then cut per tooth is small, the friction will increase with the workpiece edge, the life impact of the blade . Typically tooth pitch 15-25mm, should be selected based on a reasonable number of teeth sawing material. The thickness of GUSHI sds hammer drill bits  the blade from the saw blade in theory, we hope the thinner the better, is actually a kerf consumption. Materials and manufacturing processes carbide saw blade sawing board determines the thickness of the blade. To consider when selecting blade thickness from work and the stability of the blade sawing materials. Diameter and thickness of the blade used for cutting and sawing equipment related artifacts. Blade diameter is small, the cutting speed is relatively low; blade diameter saw blade and cutting equipment requirements will be higher, while cutting efficiency is high.

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.

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.

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 .

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 .

How to choose diamond drill bit according to the rock properties

For the hard rock drilling and dense low efficiency problem, this paper

analyzes the tungsten carbide-based hot drill diamond protrusion such as

lithology and rock abrasiveness intrinsic link between that drill

carcass composition and its performance is tamping rammer  critical , hard and brittle

with a carcass beneficial properties of the diamond blade, which can

increase the drilling speed. Therefore, from diamond drill hot carcass

composition and properties of the start, after repeated experimental

research, trial out of the hot steel bonded carbide type impregnated

diamond bit. In the hard and dense rock drilling field tests showed

that: with ordinary tungsten-based drill compared to drilling aging by

the 0. 5 m / h up to 1. 18 m / h, drill working life by a 10 m / a

increased to 21. 31 m / a, basically solved the hard and dense rock

drilling difficult problem. Experimental results show that the type of

steel bonded carbide matrix is  wet diamond polishing pads ​​an excellent diamond drill carcass

material, the type of hot carcass diamond drill is a kind of a broad

spectrum of diamond drill bits. Foreword traditional hot tungsten

carbide-based diamond drill is widely used in geological prospecting.

Tungsten carbide-based diamond bit high abrasion resistance, better

adaptability for rock. However, this type of drill bit for hard - hard

and dense rock formations exhibit adaptability unsatisfactory drilling

less effective, while 08 1994-2010 China Academic Journal Electronic

Publishing House. All rights reserved. Http:/ / www.cnki.net Diamond &

Abrasives Engineering Total No. 168 effective only 0. 40 m / h ~ 0. 50 m

/ h, working life of only 8 m ~ 10 m. Meanwhile, in recent years,

tungsten carbide, cobalt, nickel and other metal materials prices, the

cost of diamond drill increased significantly. In order to improve drill

hard and dense rock drill drilling performance and reduce costs, we have

gone through nearly two years of experimental research, successfully

developed a type of hot carcass steel bonded carbide impregnated diamond

drill bit. Steel bonded carbide type of steel bonded carbide matrix is ​​

designed based on the idea, its composition and  cutting discs the ratio of the larger

changes were made, including tungsten carbide, cobalt and other

materials was significantly lower, at a reasonable thermal pressure

condition of the carcass is formed. A carcass Test 1.1 steel bonded

carbide type carcass performance design for hard and dense rock

formations, to improve the diamond bit drilling results, we must have

two basic conditions: ① with the wear resistance of the carcass

abrasive rock drilling performance to adapt bit matrix slightly ahead in

the process of drilling diamond wear, so that the carcass of a diamond

blade can be timely to ensure effective cutting rocks. ② requirements

of the diamond matrix alloys have a solid package insert effect, there

is a higher blade without shedding [2], the carcass of the diamond can

be a long time to maintain a sharp cutting results. To achieve these

goals, we must study the type of steel bonded carbide matrix can improve

the wetting adding diamond alloy composition.

Trimming cutter grinding wheel surface generally

removed from blunt or abrasive ceramic particles in an effort to reduce the grinding temperature and improving the  Plate Compactor surface roughness and improve the grinding wheel small tolerance machined workpiece capacity. Trimming tool is also used for finishing grinding wheel. In the past, most of the trimming and finishing operations are fixed into the rotating grinding wheel dressing tool, this tool is often trimmed with made of single-crystal diamond or PCD.Today, many high productivity CNC grinding operation using rotating or sharp dresser dressing roller. When  floor polisher pads the wheel side of the workpiece, its other side on the same time are continuously refreshed. CNC rotary trimmer can accommodate more than 100 same diamond, these small diamond pieces mounted on the outside diameter of the dresser, in the grinding wheel to generate a unique shape.Laser cutting, independent CVD diamond dressing tools give users and  14 inch saw blade producers many unique advantages. CVD diamond structure can be designed and manufactured to have a higher fracture toughness and strength, so as to optimize tool life and dimensional stability trimming purposes.Because CVD diamond is cut into thin slices, which can minimize or eliminate the problems associated with single-crystal diamond, such as natural diamond shape constraints and the inherent variability and so on. Finally, CVD diamond material can be manufactured into high aspect ratio (eg: 8mm × 1mm × 1mm), CVD diamond dressing tools mounted on a cost-effective, extend life and improve the efficiency dressing.

diamond segment describes the optical properties of

 (1) flashing (Scintillation) is flashing diamond flash, that is, when the diamond or the light source, the diamond cup grinding wheel  observer moves relative to the surface of the white light reflection and flash. Colorless, transparent, well-crystallized poly octahedral shaped diamond surface bodies or, if not Gache grinding can expose good flashing light.
(2) Identification of the optical intensity (Brilliance) because of the diamond has a very high reflectivity of the reflection critical angle is small, a wide range of total reflection, total reflection light is easily reflected light is large, resulting in high brightness.Depends concrete drill bits  not only on the performance of the blade diamond, but on the diamond and the binder with the appropriate head of this composite material composed of the overall performance. For marble and other soft stone, head of the mechanical properties required is relatively low, the choice of copper-based binder. The sintering temperature is low but the copper-based binder, strength, low hardness, high toughness, low bonding strength with the diamond. When adding tungsten carbide (WC), the WC or W2C to as a skeleton metal, with the brick saw blades  amount of cobalt in order to improve the strength
(3) Gloss (Luster) outstanding diamond-like hard, smooth and bright crystal face or cleavage face in white light reflection effect particularly strong, and this is very characteristic of the role of reflective called adamantine luster.
(4) the dispersion or the fire (Dispersion or fire) planes of diamond as diverse as prism, can through refraction, reflection and total reflection into the interior of the crystal composition of white light into white color - red, orange, yellow, green, blue, indigo, violet shade.

lifetime of saw blades factors

 Impact efficiency and lifetime of diamond saw cutting process parameters and factors of the diamond particle size, density, hardness and  diamond blade saws other binders. It has cut the number of blades can be wire-speed, concentration and cutting feedrate.
One, sawing parameters:
(1) blade speed: In practice, the line speed diamond saw blades by equipment conditions, saw the quality and the nature of the restrictions before sawing stone. From the optimum blade life and cutting efficiency, it should be selected depending on the nature of the stone saw blade speed. Sawing granite, the blade speed at 25m ~ 35m / s within the selected range. For high quartz content and difficult cutting granite, remove the blade speed limit is appropriate. Granite tiles in the production, the use of smaller diameter diamond saw blade, the line speed can reach 35m / s.
(2) Cutting Depth: diamond cutting depth diamomd core drill bits  is related to wear, effective cutting, saw cutting force conditions and the nature of the important parameters of stone. Generally speaking, when the line speed diamond saw blade is high, should be selected for cutting of small depth, from the current technology, the cutting depth of the diamond can choose between 1mm ~ 10mm. Usually with a large diameter saw blade cutting granite blocks, the cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time. When the line speed diamond saw blade is large, a large cutting depth should be selected. But in performance and tool strength saw the extent permitted, should try to take a greater depth of cut for cutting to improve cutting efficiency. When the machined surface when requested, should be used small depth of cut.
(3) Feed speed: Cutting feedrate incurs  core bits for concrete stone feed rate. Its size sawing rate impact, the force and the cutting blade heat dissipation area. Its value should be based on the nature of the selected cutting stone. Generally speaking, sawing softer stone, such as marble, may be appropriate to increase the feed speed, if the feed rate is too low, more conducive to high cutting rates. Sawing fine structure, relatively homogeneous granite, may be appropriate to increase the feed speed, feed rate is too low if the diamond blade easily be polished. But sawing UNEVEN coarse granite structure, should reduce feed speed, otherwise it will cause the blade vibration and reduce fragmentation leading diamond cutting rates. Granite cutting feed rate is generally 9m ~ 12m/min within the selected range.