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 .

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.

Appropriate choice alloy blades

Alloy Saw best material w6mo5cr4v2 tungsten and molybdenum high speed steel blade constructed with carbide Miaoxiao evenly distributed , high wear resistance , toughness, and thermoplastic , high-end  abrasive grinding wheels  series of cost-effective benefits . Saw blade selection tungsten tungsten alloy head saw blade containing the type of substrate material , diameter, number of teeth, thickness , profile , angle , diameter and other parameters, which decision processing capacity of the saw blade and cutting performance . Select the saw blade when cutting materials according to the type , thickness, cutting speed , cutting the underlying purpose , feed speed , kerf width requires the correct selection of blades. Selected as the primary material when blade is made of tungsten steel composition , it is also known as tungsten hacksaw . Carbide saw blade containing the type of alloy , the colde saw blade  substrate material , diameter, number of teeth, thickness , profile , angle , diameter and other parameters, which decision processing capacity of the saw blade and cutting performance.
  Alloy saw blade with which it produced via high-precision quenching, the hardness of up to 64 ~ 66hrc, very close to the high-performance alloy saw blade , bending strength of 4700mpa, toughness concrete saws and thermoplastic than w18cr4v by 50%.
 Material alloy saw blade wear resistance, heat resistance, toughness and other aspects of performance are good, the price performance ratio, by Fanbo user reception.
 Grindability , versatility , mature technology, high-speed steel is the most lasting one.
 High performance alloy saw ? HSS through the process of changing the chemical composition it has a better hardness and thermal alloy blade cutter before technical requirements should not have cracks, sharp cutting edge , no chipping , blunt and annealing , etc. affect its function error fallacy.

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.

Diamond tool according to materials which several species classification

Single crystal diamond cutting tool must be 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.
Natural diamond single crystal diamond is the most wear-resistant material . Fine texture of its own , after fine grinding, cutting edge concrete crack chaser  edge edge radius as small as 0.008 ~ 0.005μm. But more brittle natural single crystal diamond , the crystal anisotropy, different surfaces or in the same plane of the crystal in different directions were different hardness , during grinding and use must choose the right direction . The use of harsh conditions, coupled with natural single crystal diamond resources are limited, the price is very expensive, so they use a production PCD, PCD / CC and CVD diamond tools . Some natural single crystal diamond is mainly used for ultra-precision machining non-ferrous metals or gold jewelry production .
Synthetic single crystal diamond the size, shape and performance are in good agreement , present due to high pressure technology matures , a certain size can be prepared by synthetic single crystal diamond , especially in the processing of high wear-resistant laminated wood , it performance than PCD diamond cutting edge will not cause premature passivated.
Synthetic polycrystalline diamond (PCD) and synthetic polycrystalline diamond and carbide composite blade (PCD / CC)
PCD is at high temperature ( about 1800 ℃), pressure (5 ~ 6MPa) , the use of cobalt and other metal binding agent to a number of polycrystalline diamond crystal powder polycrystalline material , although slightly lower than the hardness of a single crystal diamond , but it is randomly oriented diamond grains polymerization , is isotropic , as can be arbitrarily oriented cutting tool sharpening , no natural diamond that  cup grinding wheels must be selected as the best cleavage plane as a rake . In cutting, the cutting edge is very sensitive for accidental damage , wear resistance is also strong , long stay sharp cutting edge , can be used when machining high cutting speed and larger cutting depth ( to eat deep ) , life is generally higher than the WC-based cemented carbide cutting tools 10 to 500 times , and because the metal binding agent PCD has conductivity , making PCD easy to cut to shape , and is a rich source of raw materials , the price is only a few tenth of natural diamond a fraction of the ten have become traditions WC-based cemented carbide cutting tools , high-performance alternatives.
PCD inserts to improve the toughness and weldability in the cemented carbide substrate , sintered or pressed on the  sds hammer drill bits surface of 0.5 ~ 1mm thick layer of the composition of PCD diamond composite blade (PCD / CC). PCD / CC welding or machine folder available way of making knives. Due to its good weldability , regrinding easy , low cost, and therefore widely used. Hereupon , PCD and PCD / CC sharp cutting edge of the tool and are not as good surface quality single crystal diamond , while its workability is poor, the grinding ratio is small , it is difficult according to the geometry of any shape head , still not easy to manufacture with chipbreakers indexable end mills and other geometric shapes and complex products. CVD diamond CVD diamond is a diamond material of high wear resistance of pure , non- binding agent , which is at low pressure (<0.1MPa) prepared under . CVD diamond films are coated CVD (CD) and CVD thick (TFD) forms.
CD is a CVD ( chemical vapor deposition ) process , the carbide substrate ( K type alloy used ) is deposited to a thickness of about 10 ~ 30μm, composed of a polycrystalline diamond film is made .

Diamond and other superhard materials characteristics and effects

In all kinds of data , the natural single crystal diamond is the hardest substance in the world , so as an abrasive and cutting things , its function is unmatched in diamond tools , for example, sharpening its edge radius able to even scanning electron microscopy, can not be detected , until now no one can replace information , apply it to cutting, are sanding belt   often able to directly obtain the mirror , then been widely used in appearance, electronics, optics and other areas , to become deficient not cutting what information , but due to cost precious , sharpening needs clever artistry, so always hinder its widespread use .
Hard data as superior functionality , the use of constantly expanded ( glass grinding wheel ) to carry out from the metal processing optical glass processing, stone processing, ceramics processing, data processing and other brittle difficult for traditional processing areas .
Natural single crystal diamond , because of its anisotropy , and thus the hardness of the difference of the crystal is very large, in the grinding tool when choosing the soft side of a polishing surface , and the surface of their hard as the rake face or the flank , this gives ground to bring favorable conditions , because of its anisotropy , so in use , it is necessary to consider a reasonable selection of planes , for example , hardness of the anvil , in the use of , or bouncing pressed into use to measure the hardness test data , but because of the hardness of the work surface is not the same , the results are different, of course, use a hard surface , is conducive to extend life expectancy , and if the production of natural diamond wire drawing die , because the hole by the crystal surface work surface composition, hardness and thus inconsistent , then uneven wear , with circular cross-section wire give a stress difference , the hardness unevenness affect the application of diamond sintered body and the thick-film diamond , the isotropic product in such sample / the use becomes very favorable.
PCD, PCBN, because the grain is not the same , the concentration is not the same , the function is not the same , it is necessary and reasonable choice. Diamond is a pure diamond thick film , the hardness near to the natural diamond and PCD, PCDN diamond powder is mixed with the metal grinding wheel  binding agent is sintered , and thus the hardness of the binder was , as the hardness of the former.
Is well known , diamond with iron affinity, can be used in non-ferrous metal and non-metal items , while CBN even in a high temperature of 1000 ℃ cutting ferrous metal is fully able to act . Has become difficult to process information for future primary cutting stuff available. Usually hard data refers artificial diamond , artificial CBN. These two items are present together , played a complementary effect , able to mask was carried out with the subsequent processing of a variety of new data on the entire cutting area is extremely beneficial.
Diamond cutting precision grinding needs something clever techniques, in order to obtain more precise cutting edge radius , especially accuracy of less than 0.05um following the grinding machine made ​​appropriate stringent requirements , ( diamond wheels ) have necessary to have  flap wheels a high precision spindle shaft reversal , the old mill has been accustomed to, more choice of air bearings as the support began lapping plate on the machine it is necessary to be able to Shuhei to face runout control 0.5um or less. PCD and PCBN sharpening contrast is relatively simple, because the hardness is relatively low contrast , can be used as a diamond wheel , while the thick diamond is not the same , the hardness near to a natural diamond , and is isotropic, so sharpening contrast difficult.

Saw is the most indispensable tools

In diamond products industry, we all know, is called fine machining tool blade terminal and intermediate products is essential for class materials .
In recent years, as domestic production of synthetic diamond material and labor costs increase, the superhard material , diamond prices  wet saw blades soaring , derived diamond wheel and saw reflected in the most obvious, because some local SMEs can not afford the increased cost pressures have been eliminated , but the market is not saturated trend , we can say the diamond industry is still a long time very popular in the industry , diamond buy and supply has not been much affected , but also brought some adverse market effects , a number of diamond companies in order to reduce the cost of inputs , nor increase the business of innovation support, making part of the product and a serious lack of similar foreign products, the competitiveness of the diamond , the diamond tools , the price increases Meanwhile, the diamond tool manufacturer  domestic sales continue to decline foreign orders continue to increase, so we should take into account , regardless of the industry in innovation is the driving force of life , saw no exception , even though industry segment is uneven, we should always bear in mind .
 In the diamond industry, from the year before , abrasives in the market, sales have gradually increased , according to media reports South Huanghe Whirlwind two diamond diamonds and large enterprises respectively, of its efforts to increase the input-output , recently Jiangyin Juan Tong Guangzhou Abrasives Factory workers increased blade production to meet market demand, these indicate that the diamond industry in the country's development potential of no less than abroad.
 Behind diamond prices reflected market effects , not  hole saw blades only that we need to increase the industry 's innovation, but we need to do to market demands better planning and preparation, price increases are not limited to the entire industry, how the prices at the same time to find a breakthrough in the industry , this is the diamond industry is currently ask for consideration. Insist on doing quality , the market will give you a good feedback , which is our usual practice , we have been strengthening product development.

diamond wheel handling storage

Diamond grinding wheel in the handling storage we need to pay more attention to some of the details matter , in order to avoid accidents , the following details below:
1 diamond grinding wheel in the handling, storage medium , can not be subject to strong vibration and shock, do not allow scrolling when handling diamond wheel to avoid cracks, surface damage .
2 printed with diamond wheel speed  diamond cbn wheel characteristics and safety signs shall not daub or damaged , avoid using the confusion.
3 diamond grinding wheel diamond grinding wheel storage time should not exceed the period of validity of resin and rubber bonded diamond grinding wheel from the date of delivery , if the storage period exceeds one year , subject to rotation after passing the test before use.
4 diamond grinding wheel storage site should be kept dry , suitable temperature, to avoid mix with other chemicals . Diamond grinding wheel to prevent moisture , cold , heat and corrosion by harmful chemicals that strength.
5 diamond grinding wheel should be based on size, shape and size of the different classification place , to prevent damage or laminated diamond wheel due to improper storage deformation .
Processing method of grinding wheel Today we learn more about diamond wheel grinding method :
Diamond grinding wheel grinding become diamond blade circular saw  increasingly willing to use processing methods. To meet the standards of today's high-precision machining , grinding and sometimes even has become the only way of processing . With the falling prices of diamond grinding wheel , grinding has become a more commercial products.
Through the full use of newer abrasive particle size , grinding and grinding process has been further improved and improved. Now, the whole market was largely dominated by more sophisticated grinder .
However, to achieve high-precision  cutting blades machine tool itself is not the only recipe for grinding , diamond grinding and particle size , diamond grinding wheel dressing systems, software systems, operator and other factors are all intelligent processing and production of high-precision products play a key role .

diamond blade introduces the optical properties of the diamond

 (1) flashing (Scintillation) is flashing diamond flash, that is, when the diamond or the light source, the observer moves relative to the surface of the white light reflection and  grinding cup wheels 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 sds plus drill bits  brightness.
(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  fibre discs of white light into white color - red, orange, yellow, green, blue, indigo, violet shade.

grinding is a widely used

Marble is an important building material, and grinding is essential for the production of abrasive marble one. With economic development, more and more extensive use of marble, especially in  brick saws some public places, marble With luxurious gesture, although the love for people.
Marble marble grinding dry grinding is the main tool grinding machining relatively long history, but as more use, polished film is the last three decades a large number of industrial production, and its hardness 8000-10000 kg force / mm 2; hardness is the highest, the processing material is a micro-cutting mechanism, and therefore processing edge polishing pads  of grinding of marble cutting tool of choice in recent years, there is a massive increase in the yield and reduction of industrial costs, high processing efficiency (the ordinary 5 times more), the processing effect (demanding materials can be polished), and thus, grinding is a widely used.
Marble dry grinding is the use of coarse-grained grinding tools, there will be damage to the surface of the polished, or will have to do some uneven paved flat, generally this process to have a certain amount removed, polished piece construction, pay attention to the masonry saw blades   overall smoothness. Thick marble dry grinding process is to remove the coarse texture, but also to maintain the work surface smoothness.

cutting discs

 Abrasive cutting discs is a combination of three parts, and fillers, is made through a special pressing process with a cutting action of the wheel, of normal wheel and diamond cutting disc (CBN) cutting discs
Edit Summary
Abrasive cutting discs is  tuck point blades a combination of three parts, and fillers, is made through a special pressing process with a cutting action of the wheel,
Of ordinary wheel cutting disc and diamond (CBN) cutting discs
Diamond (CBN) cutting discs in accordance with binding agents to sub-divided into sintered metal cutting discs and resin-bonded cut slices.
According abrasive
Brand: Diamond (CBN) thin cutting discs
Bosch cutting discs
Mews cutting discs
German DFS cutting discs 
Diamond cutting discs
Xiangjiang River  flap discs sand master cutting discs cutting discs
Thin resin cutting discs
Purpose:
Made of glass fiber and resin bonding materials reinforced with high tensile strength, impact resistance and flexural strength, widely used in ordinary steel, stainless steel and non-metallic  tile cutting blades production cutting, fine materials, craftsmanship ensures different materials workpiece high cutting efficiency and the best economic results.

stone cutting diamond saw blade play an important role

As manufacturing needs, now used in stone processing industry in the number of synthetic diamond straight up, and their consumption accounts for about 90% of total synthetic diamond, the ceramic tile saw  domestic diamond saw blade matrix is ​​mainly used in stone processing industry.Classified by material, the current domestic production of diamond saw blade matrix materials are 50Mn2V, 75Crl and 65Mn three kinds of material, some of the low-end market as well as with 45 # steel. 45 # steel is the ordinary carbon steel, 65Mn spring steel is common, 75Crl is carbon steel. Comparatively speaking, 50Mn2V is a medium carbon steel, 50Mn2V fine grain size, high thermal stability, high strength and toughness, fatigue resistance and heat resistance. 50Mn2V saw the matrix material with complex multi-frequency welding, long life, easy blade after blade welding deformation, deformation easy to repair, etc., there are products in the course of the rigid effect gradually becomes higher, thus 50Mn2V materials are widely used in processing and production of diamond saw blade matrix.Classification according to specifications, the domestic stone processing saw the matrix size starting from ф200mm maximum of ф3500mm (foreign specifications for maximum saw blade towel 5000mm). Which, dp200-600ram specification sheet is mainly used for semi-finished products cut (cutting edge) processing; ф650 above specifications are mainly used for similar tombstone, grave stone columns and other thick (column) molding sawing and for sawing blocks of cut (board) wood processing. Especially ф1600mm saw the matrix currently the most widely used.ф200 ~ 600mm Specifications diamond saw blade matrix, as low-tech, product technology and quality requirements are not bandsaw blades  high, only requires the ability to use cutting edge on the line, products on the market and more homogeneous. Currently ф200 ~ 600mm Specifications saw the matrix hundreds of manufacturers, the market competition is mainly price competition as the main means, industry competition, profit margins are low, the strength of some domestic enterprises have no intention to participate in such low-end market competition.ф650mm matrix relative to the above specifications ф200-600mm specifications, product processing difficulty to a large, initial capital industry into more higher threshold. Users of the product quality and performance requirements are also higher. Currently few domestic manufacturers, less than 10, the product showed a certain degree of diversity, competition in the market to non-price competition as the main means of the product itself merits of the quality, performance, stability, length of life and ring saw blades  quality of service competition in the market has played a key role. In Fujian, Guangdong and other southern regions, diamond saw blade matrix commonly used in a group, such as ф940mm kind фl600mm one each of 10 used in combination, ф680mm, фll40mm and фl600mm each combination of 5 and so on. Combination saw the matrix used for group-cutting granite and marble slabs, greatly improving efficiency and cutting sheet metal precision, power consumption saving more than 15%, while the blade matrix itself is also a higher quality and performance requirements.Along with the growing importance of environmental protection, mining blocks scarcity of resources, power resources supply is tight, stone enterprises manufacturing costs, increased competition, a number of energy-saving, resource-based, environmentally friendly saw the matrix gaining market Welcome, customers saw the matrix species needs some new features

manufacturing stone marble furniture maintenance

Marble furniture sold on the market with core drill bits  natural marble and artificial marble of the points, which have high quality and large natural marbleMarble and poor quality marble of the points, choose marble furniture must first understand the difference.Each one has a unique natural marble natural pattern and color, high-quality piece of marble furniture will chooseStone raw materials, materials used in different parts of the ratio. There will be a large area of ​​the main parts of the natural lines and scrap will be used inBack, stigma and other parts do embellishment. The poor quality of furniture when used in the preparation scrap, lack of change in the surface.The marble used in the furniture are generally green jade, purple jade, crystal pearl stone, jade unicorn, Heding, amethyst, White crystal and other varieties, including some species require staining, and green jade, purple and red jade dragon stone is natural. AThese inferior products will be low-grade white marble dyed green fake jade green, the color of most of these products was not natural emeraldGreen.Artificial marble is made of natural granite core bits  marble or granite gravel as filler, cement, plaster and unsaturated polyester resinLipid-adhesive, molding by mixing, grinding and polishing is made. Good transparency of artificial marble, and no gloss.Identification of artificial and natural marble has a more simple trick: a fewdrops of dilute hydrochloric acid, natural marble severe blistering,Artificial marble is weak or even non-foaming foaming.Radiation is very low natural marbleMarble furniture in addition to the robustness of the plate and has high environmental protection requirements, the radioactivity of the stone there are also strictControl. For a long time, people mistakenly think that marble furniture will have radiation, inevitably there are some concerns when buying. In fact,Natural marble radioactive low, basic will not cause harm to humans, and are highly radioactive artificial marble homeTools.Operating in the name of good century home, Depot and Fort China Lundy high, big brands such as TAG Zundian stone collected mainly from Italy,Mexico more than 20 countries, each one stone are to ensure compliance with European environmental standards, ray intensity far below the national controlStandards, and the  concrete grinding wheel stone surface using a transparent coat of paint, changing the stonework magnetic resonance with the human body, while the table is not easyBy oil pollution, erosion, easy cleaning, but also to feel the cold marble surface is improved.Marble furniture and maintenanceMarble is a porous material, it is easy to pollution, the water used for cleaning should be less, on a regular basis with a damp washing with a mildDetergent-free cloth, then wipe dry with a clean, soft cloth and polish. Badly worn marble furniture difficult to handle, the available steelVelvet cloth, then polish with an electric grinder, it restored the luster. Or abrasive cleaners carefully wipe with liquid, lemon availableJuice or vinegar to clean dirty, but the lemon stays on top, preferably not more than 1 to 2 minutes, if necessary, repeat the operation, and thenAfter the wash and dry. For minor abrasions, available exclusively marble cleaners and care agents.For old or precious marble furniture should be professional treatment, paint a marble furniture must paint strippingFrom agent treatment, should be in accordance with product instructions, mayrequire coating layers. Clear all the paint on the steel wool to wipeAnd polished with an electric grinder. Cosmetics, tea and tobacco stains, can be painted with a few Zhangzhou ammonia hydrogen peroxide, stay two smallWhen, then rinse and dry. For traces of oil, can be used in ethanol (alcohol), acetone (wood alcohol) or a lighter petrol to clean,Then rinse and dry.

alloy saw blade maintenance

1 blade if not used immediately, it should be flat or use the hole to hang up, the blade can not be  concrete vibrator stacked horizontally with other items or foot, and pay attention to moisture and corrosion.
(2) When the blade is no longer sharp cutting surface roughness must be promptly re-grinding. Grinding can not change the original angle, and destruction balancing.
3 blade diameter correction, positioning hole machining, etc., must be carried out by the factory. If the  tile cutter processing is bad, will affect the product effect, and may be dangerous, reaming in principle can not exceed the original diameter 20mm, so as not to affect the balance of stress.
4 of alloy wheel selection.
1) resin bond diamond grinding wheel bond strength is weak, it can be self-sharpening, grinding, and not blocked, high grinding efficiency, small grinding force, low grinding temperature, the metal grinding wheel  disadvantage is poor wear resistance, abrasive wear and tear , it is not suitable for heavy duty grinding.
2) vitrified diamond grinding wheel wear resistance and superior binding capacity of the resin binder, sharp cutting, grinding, high efficiency, easy to heat and clogging, thermal expansion less easy to control precision surface grinding coarse shortcomings

crystal diamond powder

Grinding, polishing process
Massive polycrystalline diamond particles and particles of single crystal diamond grinding sharp  dry core bits contrast seen sharp, shallow produce polycrystalline diamondMicro-cracks are transverse cracks (cracks at right angles with the polishing pressure) enhances the removal, its vertical microcracks (and polishing pressureDirection of the force in the same direction) the damage of its surface is limited. The overall effect is faster removal of workpiece material and the residual micro-Cracks in the  tamping rammer subsequent polishing process to remove the surface reaches a minimum. Production efficiency aside on the edge, in itsApplication process benefit is obvious, such as optical - coupler and optical components must be as transparent as possible through certain wavelengthsLight; magnetic element may interfere microcracks electronic, magnetic, or acoustic properties; polycrystalline diamond of high-precisionDegree of polishing will help you meet these requirements. Also be used for the IC chip and so on. More (poly) crystalline diamond, is a strong impulse in the explosionUnder the action of shock waves, synthetic crystals of diamond polycrystals. It is different from the production of detonation nanodiamonds.Its structure is characterized by: crystal isotropic, no cleavage plane. Not only has the unmatched hardness and strength, but wet tile saw  also has a veryHigh toughness. At the same time it does not produce fracture along the cleavage plane phenomenon. And in the grinding and polishing process will automatically peel timelyThe microscopic appearance of a new cutting edge. This "self-sharpening" ensure the machining of high precision, high efficiency and will not damage the shallowTable dimensions.

diamond cutter end milling milling asymmetry

Asymmetrical diamond milling milling cutter, milling parts accounted for a larger proportion of each tooth milling cutter force in the feed direction, the force in the direction opposite to the core drill bits  feed direction, do not pull the table, and the blade cut Although artificial parts when chip thickness from thin to thick but not to zero, and thus impact, vibration is also smaller. Therefore, end milling milling asymmetry should be taken. Water jet machining technique of diamond cutting tools is the use of pressurized water to a hydraulic system 200 to 600MPa, the high-pressure water through a special design of the small diameter (0.076 a 0.635mm) the outlet, the formation of the beam about three times the speed of sound diamond tool , the  granite polishing pad impact surface of the material to be processed and removing a portion of material. According to whether the water mixed with abrasive water jet cutting technology is mainly divided into pure water jet · (Wi) and abrasive water jet (AWJ) machining two categories. The former is mainly used for cutting non-metallic materials, rust removal and decontamination, which is mainly used for metal and composite materials, and some can not be processed by conventional methods or processing of the more difficult situations.Water jet and abrasive water jet machining technology theory behind its applied research, the industrial saw blades  results of many practical applications, in theory, still can not make a sound explanation, water and energy transfer between the abrasive possible through a variety of ways, and the more complex ; generally believe that the speed of the water jet cutting of materials can play a decisive role.
 Experimental and theoretical analysis that the water jet at high speed diamond tools for the vortex forms its central and peripheral role in the vortex without constant. Equal to the average maximum flow velocity and peripheral velocity and the minimum flow rate is the average flow velocity and peripheral velocity difference. High speed jet hit the target form vortex structures, its high-speed part of the longitudinal elastic coefficient of the fluid increases, the rigidity increases. When this rigidity is greater than the target, the target will be the impact of being crushed, which produce cutting target role. When the low part of the hit target, its fluid longitudinal elastic coefficient, rigidity is small, similar to the soft material and the role of material to be cut, sometimes negative velocity can be crushed by debris sucked.

diamond is difficult to geometries Tool

Diamond Tool preparation process is complex, because the diamond between the low-melting metals and their alloys have a high interfacial energy. Diamond is difficult to be generally low melting point solder alloy infiltration. Weldability poor, difficult to produce complex geometry tool, it can not be applied TDF welding tool in high-speed milling.
Natural diamond tools currently used carbide grinding wheels  mainly for copper and copper alloys and gold, silver, rhodium and other precious metals, and special parts of the ultra-precision mirror processing, such as a disk recorder, an optical mirror, a polygon mirror and the second curved mirror and so on. But its crystalline anisotropy, the tool expensive. PCD performance depends on the content of diamond grains and cobalt, cemented carbide tool life (WC substrate) of the tool 10 to 500 times. Mainly used for a variety of non-ferrous metals such as turning of aluminum, 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 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 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. Diamond-coated tools can be table saw blades  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. Vitrified diamond grinding wheel with diamond and vitrified common characteristics, and general corundum, silicon carbide abrasive compared to its strong grinding, grinding temperature is relatively low, abrasive wear is relatively small; can be adapted to a variety of The role of the cooling fluid; grinding abrasive good shape retention, high precision grind the workpiece; abrasive there are more pores, grinding and heat conducive chip, clogging, easy to burn the workpiece; mill with good self-sharpening, finishing a long time interval, trimming easier. Therefore, vitrified diamond grinding wheel used hole saw blades  in some foreign countries is increasing. Select reasonable parameters, vitrified diamond wheel grinding single crystal diamond, grinding efficiency than metal bonded grinding wheel high, wear ratio is very small, low cost, so the use of ceramic bonded grinding wheel grinding single crystal diamond, can greatly improve Happening grinding efficiency. PCD tools in the grinding, since the binder resin is relatively soft, easily deformed when grinding, grinding of PCD tools can not be effectively; metal bonded abrasive due to too strong binding ability of leaving the poor self-sharpening abrasive, grinding low efficiency, and metal bonded grinding wheel will cause the edges of PCD tool most serious damage; integrated grinding efficiency, durability and abrasive machining the workpiece surface quality vitrified diamond grinding wheel PCD tool is the most appropriate choice.

advanced tool basics of

Diamond tool manufacturers commentary advanced tool based on three technologies: materials, coatings and architectural innovation. High-speed cutting tools mainly rely on the tool material and  diamond wire saw coating technology. High-speed cutting can improve the cutting efficiency but not the only means. Tool to improve the structure of innovation is also an effective means of cutting efficiency. Composite hole processing tool able to complete one pass drilling, boring and face chamfer. Crankshaft machining process progress more convincing, the invention of the  diamond discs crankshaft car broaches the crankshaft machining efficiency by 10 times. Now there are more efficient crankshaft speed cutter, one pass can be completed seven main journal processing. Dongfeng Motor Corporation cutting tool plant has been successfully developed for the domestic auto plants and high-speed crank car broach cutters and successfully used in the production. The eighties and nineties Chengdu Tool Research Institute in the coating, materials technologies and other individual circumstances are not dominant, with independent intellectual property rights of tool design and process technology, combined with table saw blades  coating materials and innovative technology, integrated tool structure use of high-intensity oil pipe thread cutter on the realization of a successful foreign well-known enterprises beyond. There are many examples illustrate innovative tool structure is often more effective to improve the cutting efficiency. To improve cutting efficiency not just stare with the best (and are often the most expensive) tools to perform high-speed cutting. In the present we tool material and coating technology with foreign countries there is a large gap in the case, focusing on the structure of innovative tools to improve the cutting efficiency is often more effective and viable means. Including the use of high-speed cutting tool structure and innovation, including a variety of means to achieve efficient cutting, cutting concept is yet another step forward.

affect the diamond tool wear What are the reasons

 Regardless of no matter how good things are bad when the diamond tool is also the case, diamond cutter hard, along with the use of time can be delayed, there will be some diamond tool wear, tool wear effect for several reasons, what does?
The more rigid tool material, the concrete saw blades  better the wear resistance, the higher the hardness, the lower the impact toughness, the material is brittle. Hardness and toughness is a contradiction, but also the tool material that should overcome a key. For graphite tools, common tialn coating can be selected in the selection of the appropriate point relatively good toughness, which is slightly higher cobalt content; tool for diamond-coated graphite, can be selected in the selection of the appropriate hardness relatively good point , which is slightly lower cobalt content;
Diamond-coated tools, high hardness, wear resistance, and low coefficient of friction, at this stage diamond-coated graphite machining tool is the best choice, but also the tool that best reflects the superior performance of graphite; diamond-coated rigid alloy tool combines the advantages of natural diamond carbide hardness and strength and fracture toughness. Also using the world's most advanced coating technology for surface treatment of the tool, in order to ensure that the processing life while ensuring the economic and practical tool.
Every machining practitioners are hoping to improve tool life. Now the main processing tool uses a graphical display production efficiency and abrasion scratch depth (VB) with the growth of the service life of the process of gradually deepened.
If you need to wear frequently record the formation process of the formation mechanism of wear and tear on the  green concrete blades need for a new system. High-definition digital camera (8,000,000 pixels) equipped with an optical image stabilizer, a newly developed micro sight and accessories source. Magnetic tripod joint bracket as a mobile, and can be directly fixed on the machine. If you need to optimize the process, the entire system can be placed in a portable container and equipped with the necessary spare battery, charger, or cleaning appliances. Measurement system configuration: direct dial milling cutter in front furnished with a magnetic tripod digital camera.
Measurement process is as follows: a digital camera mounted on a tripod in the magnetic, turn on the camera and light source, will be fixed in the tool near (± 2mm), and use auto focus fast imaging. The  wet core bits use of magnetic tripod can also be measured directly on a milling machine, or from the stand without having to remove the tool spindle. Digital cameras can be rotated with the screen, you can shoot at any position.

carbide drill considerations

Selection of carbide drill, you first need to consider the size of drilling accuracy requirements. Generally, the smaller the aperture is processed, a tolerance is smaller. Therefore, manufacturers usually drill the hole to be processed according to the nominal diameter of the drill bit segments. In the above four types of carbide drills in solid carbide drill highest precision (φ10mm solid carbide drill tolerance range is 0 ~ 0.03mm), so it is the best choice for machining precision holes; welded carbide replaceable carbide drill or drill crown tolerance range is 0 ~ 0.07mm, more suitable for general accuracy of hole machining; installation carbide indexable insert drill is more suitable for heavy roughing, Although its processing cost is generally lower than several other bits, but its precision is relatively low, the carbide grinding wheels  tolerance range is 0 ~ 0.3mm (depending on the aspect ratio bits), so it is generally used for hole machining accuracy is not required , or by dress finished hole boring finishing blades.
(2) processing stability 
In addition to considering drilling accuracy requirements, the need to consider when you select the drill machine tool stability. Machine stability and service life for the safety drill drilling accuracy is essential, therefore need to carefully examine the machine spindle, fixtures and accessories working condition. Also, consider the stability of the drill itself. For example, the overall rigidity of the best carbide drill, so you can achieve very high precision. The carbide indexable insert drills structural stability is poor, prone to deflection. This bit is installed on two indexable inserts, inserts for machining holes in which the inner central portion of the processing of the outer blade at the outer diameter from the inner to the outer periphery of the blade portion. Since the initial stage in the processing of only the inner blade into cutting, drilling in an unstable state, can easily cause the drill body deflection, and the drill bit longer, the greater the amount of skew. Therefore, the use of longer than 4D carbide indexable insert drills for drilling, the drilling phase at the beginning should be appropriate to reduce the feed rate, cutting into the stable phase after the feed rate to normal levels . Welded carbide replaceable carbide drill bit and drill crown is composed of two symmetrical cutting edge geometry may be self-centering blade type, which has a high stability of the cutting edge designed to cut into the workpiece without reduce feed rate, and only when the bandsaw blades  bit inclined installation into a certain angle with the surface of the workpiece when cutting exception, this time recommended drill, drill feed rate will decrease from 30% to 50%. Because these drill steel drill body can produce small deformation, making it ideal for lathe; rather brittle solid carbide drills due for lathe machining easier to break, especially when the centering drill bit in poor condition This is especially true.
3 Chip and Coolant
BTA is drilling problems can not be ignored. In fact, most drilling encountered problem is poor chip removal (machining mild steel workpiece is especially true), and regardless of drills were unable to avoid this problem. Processing plant are often used outside the way into the auxiliary coolant chip, but this method only in the machining hole diameter and reduce the cutting depth is less than the case where parameters are valid. In addition, you must use the drill diameter to match the proper coolant type, flow and pressure. For the cooling system is not installed on the machine tool spindle, you should use coolant ducts. The deeper the hole to be machined, chip more difficult and requires the greater the pressure of the cooling fluid, should be recommended by the manufacturer of drill minimum coolant flow, such as cooling liquid flow rate is insufficient, the need to reduce the machining feed rate.
4 processing cost per hole
Productivity or each hole drilling processing costs affecting the most important factor. In order to improve productivity, drill manufacturers are working on a variety of operating processes can be integrated processing methods and the development to achieve high feed, high speed processing of the drilling tool.
The newly developed replaceable carbide drill crown has excellent machining economy. Bit wear, the user does not have to replace the entire drill body, you can simply replace the carbide tooth crown, and its purchase price is equivalent to welded or solid carbide drill regrinding a fee. Carbide crown replacement is easy and repeatable high precision, machine shop can drill body with a plurality of teeth crowns, to the processing of different pore size holes. This modular drilling system can be reduced 12 ~ 20mm diameter drill cataloging costs, but can also save on welding or grinding of solid carbide drills need to re-backup tool costs.
In considering the processing cost per hole, the total lifetime of the drill should be counted. Generally speaking, a solid carbide drill regrinding only 7 to 10 times, a welded carbide drill regrinding only 3 to 4 times, and replaceable carbide drill crown in the processing of steel material When the steel of the drill body can be replaced at least 20 to 30 times the crown.
As welded or solid carbide drills need to re-grinding, in order to avoid tool breakage, workshops in the  wet tile saw use of such drills tend to use lower cutting parameters, thus also affect drilling productivity. The replaceable carbide drill crown without regrinding, the workshop can be used in the processing of the largest feed rate and cutting speed without having to worry about damage to the crown.
In many cases, the solid carbide drill or welding after regrinding of the cutting edge shapes and edge processing state is difficult to completely match with the new drill bit, so the cutting is some difference with the new drill. In addition, if re-grinding process of the cutting edge mishandled may easily damaged blade, drilling torque and increased drilling force, cutting heat increase, leading to drill shortened life expectancy. While the new replaceable carbide drill life of the crown is more consistent.