The new technology of diamond cutting tools

High-speed cutting tool holder system processing center, CNC machine tools had previously been using the traditional taper tool system, which taper shank due to the combination alone, the lower shank and spindle  GUSHI diamond hole saw coupling rigidity, spindle speed exceeds 10000r/min, less rigid coupling is more apparent. ATC ATC handle on using it after each tool change, tool radial dimensions are subject to change, there is a problem of repeat positioning accuracy is low. To solve these problems mainly improved standard 7:24 holder. Inspired by the HSK, in recent years there has been a new connection technology 7:24 handle, such as Japan's Showa research companies and large companies were developed three contacts (3LOCKSYSTEM) and duplex (BIGPLUS) 2 species GUSHI sanding discs  and 7: 24 joins the handle. 7:24 compared to the standard holder, which is coupled with a higher rigidity and precision can be used for fast, efficient cutting, and also compatible with existing or machine 7:24 handle, the handle is next 7:24 development, in addition to the standard 7:24 handle structural transformation, the main use of new HSK shank and KM shank. Shank is a new high speed taper shank, and its interface with cone and face 2 face  GUSHI abrasive flap wheels while positioning the way the handle is fixed, cone length is shorter, is conducive to ATC and the speed of light , the use of face orientation, completely eliminating the axial positioning errors, high speed, high precision possible is our domestic manufacturing tool manufacturing development. Tool and spindle speed connection technology with advances in technology in the future will be continuously developed

Classification of diamond saw blades

Widely used in the processing of stone , ceramics and other hard and brittle materials, diamond saw blades made ​​up of two parts ; . Head substrate and the supporting substrate is the major portion of the bonding head , and the head is cut from the course part , the head , in use, will be consumed continuously while the substrate is not , since the cutting head is able to effect because it contains diamond, diamond as the most concrete ring saw  rigid material, which cutting head friction the object to be processed while the metal inclusions in the diamond particles from inside the head . During use , the metal matrix and diamond along with consumption, the ideal situation is generally more metal carcass consumed faster than the diamond , so can guarantee the sharpness of the tip of the blade while ensuring a longer life , the middle part is generally Mn steel substrate . outer part is heads.
Classification of diamond saw blades
More and more industries use diamond saw in the production process , with the breakdown of industry consolidation , the type of diamond saw blades are becoming increasingly refined.
I. manufacturing process categories :
1 , sintered diamond saw blades : two of cold and hot sintering sintering , pressing and sintering .
2 , welding diamond saw : two stars frequency welding and laser welding , high frequency welding head through the medium of high temperature to melt and the substrate are welded together , the laser welding head by a high temperature laser beam in contact with the substrate forming a metallurgical bond edge fusion .
3 , electroplated diamond saw blade : It is diamond hole saw  attached to the head by an electroplating method powder on the substrate .
Second Appearance Category:
A continuous edge blade : Continuous serrated diamond saw, generally produced by sintering method , commonly used as a basis for bronze binder matrix material, cutting water to be added to ensure that the effect of cutting and a laser head cutting kinds of useful gap .
2 , blade -type blade : serrated disconnected, cutting speed, suitable for dry and wet cutting methods.
3 , turbine -type blade : 1,2 combines the advantages of the previous two , the sawtooth -like uniform continuous presence turbo punch , improved cutting speed and increase service life.
Different materials selection of different metal grinding wheel  types of diamond saw blades , different powder formulations for different material properties , the quality of materials and products , effects, and even the costs and benefits of the pass rate direct impact . Factors affecting the efficiency and life of saw blade has a particle size , concentration, binding agent , and the hardness of the diamond sawing process parameters and the like . It has cut the number of blades can be wire-speed , cutting feed rate and concentration .

Drill a brief description of the use of technology

Different well structure, the size of rock bit, type and use are special requirements. As general requirements whipstock cone drill teeth or warranty with trimming path structure, the use requiring high speed, low WOB and so on. Tags: three-wing concave concave geological core drill bit
Different well structure, the PCD grinding wheel  size of rock bit, type and use are special requirements. As general requirements whipstock cone drill teeth or warranty with trimming path structure, the use requiring high speed, low WOB and so on.
WOB and RPM to determine, not only determines the efficiency of the rock crusher cone bits, but also affect the cone drill teeth, bearing wear. Asai, soft formations, rock bit to shearing based, generally using high speed, low WOB. Medium hard formations, rock bit shearing, impact, crush comprehensive role, generally use medium speed and concrete drill bits  medium and high WOB.
Crustal rocks in different positions, which greatly changes the mechanical properties of the rock. Deeply buried rocks, in the multi-directional compression stress state, the rock porosity decreases, the intensity increases. Cementation upper hole section generally loose, soft, high speed roller bits, drill down. Lower section generally rock hard, abrasive large, low speed cone drill, drill pressure is high, use a long time. Lithology and different soft and hard rock crushing mechanism is different, resulting cone bit different forms of failure. Our various oil drilling in  masonry drill bits the common lithology, its mechanical properties are measured petrophysical.
Controlled drilling drill Type: PCB drilling with a drill with straight shank twist drill, twist drill set and fixed shank shank Spade (undercut) drill bit. Straight shank twist drill mostly for single head machines, PCB drilling relatively simple or single panels.

diamond tools classification and diverse models

Diamond tools classification and model diversity, then we in the use and maintenance What precautions do? Here are the next, for your reference.
One can not be a single point diamond dressing tool head vertically aligned wheel center, which normally takes tilted 10-15 °.
2, diamond tools in place to clamp head, be careful not to bump into the wheel surface.
3, heat dressing tools can not be "hardened" in the dry dressing must be kept trimmed twice the interval sufficient to heat the dressing tool cooling.
4, can not assume wheel surface with  cutting wheels an ideal flat. When trimming the beginning to find the highest point of the wheel position for trimming.
5, if possible, in addition to the amount of each wheel of the repair, the radius of the wheel can not exceed 0.001 inches. In addition to the amount of the repair is too large diamond dressing tool head can cause premature wear and often broken. diamond wheel some of the issues 1 cutting wheel installed at check carefully before you confirm whether cutting wheel deformation, cracks, chipping and so on.
2 Use the wheel cutter, you must  4 inch circular saw blade follow the wheel size specifications and performance options to use wheel cutter specifications.
3 First use the alignment angle, note the distance ≤ 0.5mm, Xu Xiangqian forward, both contacts must never force to avoid damage.
4 If you are using does not match the workpiece to be cut with a cutting wheel, prone to abnormal wear, sharp bad, abnormal fever.
5 cutting process if abnormal, should  hole saw blades be shut down immediately.
6 When the cutting is not sharp, to be trimmed on the blade wheel. If you continue to use overheat, overload leaving the wheel breakage.
7 wheel rotation, is strictly prohibited hand-operated cutting, not by hand, and physical contact wheel.
8 cutting wheel is strictly prohibited except for grooving or cutting operations, to avoid uneven force abnormal
9 natural diamond extremely hard, wear-resistant non-edge, not collision, so as to avoid undue loss.

Widely used for diamond tools

1 . The correct selection of varieties and grades blade blades of different varieties , because of its different components , cutting a big difference , and selection need to be careful. Currently carbide blade did not have a unified international classification , each has its own production plant varieties and grades should be used with reference to the manufacturers product samples to choose. Particle size can be divided  diamond saw blade  into three categories: the coarse grain ( average grain size of 20 ~ 50μm), the grains (10 ~ 20μm) and fine grain (2 ~ 10μm). The larger the grain size , the better the abrasion resistance , tool life , the higher the edge of poor quality, precision tool is made difficult . Instead, fine-grained tool cutting edge edge quality is good, good surface quality . Thus , the current grain polycrystalline continue to refine and already 1μm, 0.5μm or less even fine grain , to be based roughing and finishing processes , such as different requirements , use of different grain sizes . But our studies indicated that , in poly- crystal micro- cutting tool , it has a " multi-point cutting , forming  diamomd core drill bits a single point " feature, so long as the process to take certain measures , with coarse grains (70 ~ 30μm) polycrystalline tool also precision machining surplus can cut surfaces.
(2) select the appropriate cutting in recent years , with the occasion of the new materials, new technologies, new processes, new equipment innovations continue to emerge , such as superfine pre- alloy powder , laser processing , vacuum brazing technology , diamond plating technology, diamond uniform technology and other cutting-edge new technology, being highly Edge 2000 Pads  concerned with the key R & D , R & D results also gradually industrialized. As these research achievements in industry , diamond tool performance on continuous improvement , functionality continues to expand, currently has gradually extended its scope of application to the semiconductor , aerospace, information and many other fields, for diamond tools manufacturing enterprises to provide high profits and huge development space

Factors size diamond saw blade

The grit size used in the 30/35 ~ 60/80 range. The more hard rock,

should be selected with a finer granularity. Because at the same

pressure conditions, the more detailed the more sharp diamond, cut hard

rock in favor. In addition, the general requirements of a large-diameter

blade cutting efficiency is high, with the  coarser particle size should

be selected, for example, 30/40, 40/50; small-diameter blade cutting

efficiency is low, requires smooth  green concrete blades rock cutting section, preferably to a

smaller particle size, such as 50/60, 60/80.
Segment concentration
The so-called diamond concentration, the diamond in the working layer is

the carcass in the density distribution (i.e. contained within the unit

area weight of the diamond). "Norms" provides work per cubic centimeter

of the matrix containing 4.4 kt diamond, the concentration of 100%,

including 3.3 kt diamond, the concentration was 75%. Volume

concentration of said agglomerates in the volume occupied by the number

of diamond and provides that when the volume of the total volume of the

diamond 1/4 concentration of 100%. Increasing the concentration of

diamond is expected to extend the life of the blade, because of the

increased concentration of each piece of diamond is reduced, the average

cutting force suffered. However, increasing concentrations will increase

the cost of the blade, so there is concrete core bits  a concentration of the most

economical, and the concentration increases with the cutting rate.
Blade hardness
Generally, the higher the hardness binding agents, the stronger its wear

resistance. Thus, when a large rock abrasive cutting, the bonding agent

should be high hardness; when the cutting of soft rock material, the

hardness of the binding agent should be low; when large and abrasive

cutting hard rock, the binding agent should be moderate hardness .
Effect
Diamond saw blades in the process of cutting stone, will be centrifugal

force, cutting power, cutting hot alternating load effect.
Because force and temperature effects caused by diamond saw blade

grinding breakage.
Force effects: In the cutting process, the blade subject to axial force

and tangential force. Because there is  wood band saw blades in the circumferential direction

and the radial force, in the axial direction so that the blade wavy dish

in radial direction. Both can cause deformation of the rock section is

not flat, stone wasted, sawing noise, vibration intensified, resulting

in diamond caking early damage, reduced blade life. +++

to prevent the circular blade hardness is low and how to make the circular blade wear durability

Let's say the first choice, how to make circular blade hardness to achieve the best state, is a circular blade hardness and toughness to achieve the perfect value!
(A) heat treatment process in strict accordance with operating procedures, frequently check the gun temperature heat treatment equipment and instruments, such as the working status.
(2) In the quenching apparatus, the cooling medium is loaded in the circulation or agitation, to improve the cooling capacity of the quenching medium and uniformity.
 (3) on carbon tool steel and alloy tool steel circular blade, always check its hardness after quenching. Pair of high-speed steel circular blade, always check its quenched microstructure.
(4) Set monitor temperature control to prevent tempering temperature (temperature tempering run).
(5) to ensure the circular blade (including the blade) performance under the premise, according to the circular blade structure and size selection with the proper hardenability of steel.
(6) strict control of the chemical composition of  drill bits the steel and the original organization, plus 9 Steel management to prevent steel mixing.
(7) strictly in accordance with specifications for grinding circular blade grinding
  Two: how to use the circular blade will wear durability
    1, the selection of materials.
Choice of materials is an important step, the selected material is aligned with the customer cut and abrasion resistance of materials use the appropriate materials, materials selected is not good, a direct impact on the use of blade life.
2, the casting process
Air hammer steel casting eliminate occurred during a workout loose and vague and other shortcomings, the usefulness of ceramic tile saw  forging raw data is to make more solid circular blade.
3, the heat treatment process
Heat treatment process is a very important quality in production order, the customer and swap chipping mentioned port is the primary reason that the heat treatment. Effect of heat treatment of the circular blade material promoted higher hardness.
4, the machine processing steps
Based on customer requirements, we use cutting discs  sophisticated tools to right circular blade material thickness, parallelism, flatness, cylindrical, inner circle such as to make the product. Thickness Gongyi guarantee within the ± 0.0005mm. View product of all precision in temperature indoors.

Ten reasons alloy saw blade wear

1, the phase change wear alloy blade at a certain friction during high speed cutting , the substrate or the material at temperatures above the phase transition temperature , causes the alloy saw blade with  cutting tools accelerated wear , thus losing the cutting ability . Such as high speed steels 500-600 °, ordinary steel 100 °, alloy steels 300-350 °, 65 manganese steel 200 ° temperature inside will result in the matrix phase transitions.
2 , the alloy microstructure in the welding temperature or other factors in the destruction of high -density ultra- fine particles in the welding alloy cold and hot temperatures , or high temperature , resulting in thicker alloy crystal , alloy cracking, deformation of the matrix alloy strength reduction and abrasion resistance .
3 , tool wear, cutting angle design and brick saws  material discrepancies due to different hardness and various types of plastic materials not targeted under the appropriate choice of alloy , and no matter according to the hardness of the cutting dry cutting angle of each side effect which reduces tool life .
4 , the oxidation of the alloy blade wear oxidation wear at 800 ° C or higher friction temperature, oxygen in the air and alloys of cobalt , tungsten carbide, titanium, tool wear due to oxidation occurs .
5, the impact of technology and precision grinding wear, alloy circular saw blades are precision cutting tools, any main and sub- edge blade with tape, face cutting straight face , or radial cutting rather than a cutting line, each one formed alloy cutting point or depth , and many other factors that reduce their effectiveness .
6 , diffusion wear diffusion is a chemical wear, diffusion wear is at a high cutting tool and the workpiece between the mutual diffusion of alloying elements , the tool material physical and mechanical properties of reduced lead increased tool wear . Carbide, titanium carbide increased in the tantalum carbide or other additives can be added to improve the matrix alloy and the temperature of diffusion and thus improve tool wear resistance and heat resistance.
7 , adhesive wear in the cutting of plastic material , the cutting and the rake face after the cutting work viscosity, the tool surface or partially lower strength adhesive particles or the  circular saw   workpiece to be cut so that the tool with grinding brush wear.
8 , improper maintenance or improper operation caused by wear and tear , each cutting equipment, cutting feed rate is not the same , while the alloy saw blade is designed according to different cutting material various angles , with inappropriate will reduce its effectiveness.
9 , mechanical wear workpiece or the tool cutting edge surface carved with shades of grooves caused by wear and tear. Workpiece or cutting edge tool and the workpiece with high hardness more than the smaller tool easy to wear, so the tool must have a higher hardness.
10 , the tool wear buildup feed speed is too fast or accuracy is not high , wheel selection and other factors, is not a good grinding blade with the cutting tool material during shock loading or poor toughness , tool face angle for each blade will have a loss factor with from.

Point diamond tool

We know that the single crystal diamond is very hard, very difficult process , a single crystal diamond tool in the design of the time to simplify as much as possible to its shape . In addition to General purpose blade  this characteristic of single crystal diamond , there are many other features , this is not introduced .
Single-crystal diamond tool designed to consider when main factors: ① precision parts to be processed ; ② actual processing conditions ; ③ diamond material properties.
Design single crystal diamond tool , you should follow the following principles: ① Because single-crystal diamond high hardness, processing difficulties, so the shape of the tool should be as simple as possible ; ② According to single-crystal diamond brittle, poor impact resistance characteristics , should be combined with the actual processing conditions , through the tool geometry are optimized to improve the impact resistance head ; ③ precision machined parts according to the requirements of the design wiper length , taking into account the ability of the tool to cut thin .
Below are several commonly used tool , for example, discusses the design of single-crystal diamond tool .
Turning your computer's hard substrate
Computer hard disk substrate is used for information storage, the material is aluminum or aluminum alloy , the surface diamond tool manufacturer  roughness of the substrate , the lower storage density, thus reducing the surface roughness of the processing is critical . The same time as the substrate thickness is less than 0.9mm, in order to prevent deformation , should minimize the cutting forces and extrusion processing .
Cutting hard substrate with good rigidity and stability using ultra-precision lathe disk . Cutting depth of about 0.01 ~ 0.02mm, the feed is about 0.5mm. Rigid disk substrate of single crystal diamond tools shown in Figure 1 the shape of the tip . Head has two main cutting edges , the processing can influence the infeed . Longer wiper ensures two directions machining wiper flank wear will not interfere with each other . Two master in the feed direction of the rake face downtilt 5 °, to obtain about 2.5 ° negative rake angle , the chips flow surface to be processed , in order to avoid scratching the 9 inch saw blade  chip surface has been processed . Very sharp diamond tools , edge radius is smaller than 100nm, 5 ° after the angle of the flank face has been sufficiently reduced to the machined surface of the extrusion and friction.
The key quality requirements of the tool blade and the tip is observed under the microscope at 500 times the defect . The design principle is equally applicable to other ultra-precision mirror surface processing tool .

diamond saw - blade manufacturing method

With the automotive, aviation and aerospace technology, the rapid development of the material properties and processing technology, increasing demand. New materials such as carbon fiber granite polishing pads  reinforced plastics, particle reinforced metal matrix composites (PRMMC) and ceramic materials are widely used. These materials have high strength, wear resistance, low thermal expansion coefficient and other characteristics, which determines them when machining tool life is very short. Resistant and stable development of novel superhard cutting tool is that many colleges and universities, research institutes and enterprises research. Diamond set mechanical, optical, thermal, acoustics, optics, and many other excellent performance in a, with a high hardness, low friction, high thermal conductivity, thermal expansion coefficient and chemical inertness is low, is an ideal material for tool manufacture. The recent development of a method for manufacturing diamond tools for an overview.
Application cited
(A) the processing of non-ferrous materials difficult to machineProcessing of copper, zinc, aluminum and other nonferrous metals and alloys, the material easy to adhere to the tool, processing difficulties. Using diamond low coefficient of friction, and non-ferrous metal affinity characteristics of small, diamond tool and the tool can effectively prevent the occurrence of metal bonding. Further, the elastic modulus of the diamond cutting edge portion is deformed when small, the cutting non-ferrous metal extrusion deformation is small, the cutting process can complete the small deformation, which can improve the surface quality.(2) the processing of non-metallic materials difficult to machineProcessing particle contains a lot of high hardness non-metallic materials difficult to machine, such as glass fiber reinforced plastic, filled silicone material, hard carbon fiber / epoxy composites, the material of the hard particles so that the tool wear serious, hard carbide cutting tools processing, and diamond tools, high hardness, wear resistance, and therefore processing efficiency.
(3) ultra-precision machiningWith the advent of modern integrated technology, precision machining direction to the development of the tool performance made some very high demand. Because diamond friction coefficient, low coefficient of thermal expansion, high thermal conductivity, can cut very thin chips, chip easily outflow affinity with other substances is small, easy to BUE, heat a small, high thermal conductivity, heat can be avoided of a blade and the workpiece, so the passivation edge, cutting deformation, the surface of higher quality can be obtained.
Method for producing diamond tools
Currently the main diamond processing polishing pads for granite  method has the following four categories: film coated tools, thick welded diamond tools, cutting tools and single crystal diamond sintered diamond tools.2.1 Thin Film Coated ToolsFilm coated tool rigidity and high-temperature characteristics in good collective material by chemical vapor deposition (CVD) tool made of diamond film deposition.As Si3N4 ceramics, WC-Co-based cemented carbide and the metal W thermal expansioncoefficient close to the diamond, heat generated when the film stress is small, it can be used as the base material of the cutter body. WC-Co-based alloy in the presence of Co binder phase easy to make the diamond film and the substrate is formed between the lower adhesion strength graphite, before the deposition in order to eliminate the need for pretreatment of Co (generally by acid etching to Co) .Chemical vapor deposition method is a method of using a gas containing the C source  Plate Compactor activated, the low gas pressure, the carbon atoms deposited in a certain area, the carbon atoms in the condensation, forming a diamond phase deposition process. Currently used for deposition of diamond by CVD include: microwave, hot filament, DC arc jet method.The advantage of diamond films can be applied to a variety of complex geometry of the tool, such as a blade with chip, end mills, reamers and drills; many non-metallic materials can be used to cut, cutting, cutting force, small deformation, smooth, abrasion slow, difficult to deform the workpiece for the workpiece material, tolerances small finishing. The main disadvantage is the diamond film and the substrate adhesion is poor, the diamond film does not have a re-grinding of the cutting tool.

Characteristics and requirements of resin grinding wheel

Our resin grinding wheel should have some preliminary understanding, but it should still be enough to understand the properties of a comprehensive , how in everyday use will maximize the polishing pads for granite  efficiency of resin grinding wheel , let us work together to understand :
First, you know, resin grinding wheel is made ​​of resin grinding wheel, such as phenolic , epoxy, polyurethane , polyvinyl alcohol, resin grinding wheel is a high strength, can strengthen the wheel to add fiber mesh and steel , such as our cutting discs, grinding, now most of us are not waterproof resin grinding wheel abrasive grinding fluid could not be used , of course, need to add some resin grinding wheel grinding fluids , such as epoxy , resin grinding wheel is a good finish, not easy to burn currently tuck point blades  used in the resin grinding wheel cutting disc, double-end , heavy duty wheels, polishing wheels and so on.
There are many special resin binding cutting diamond wheel for rapid cooling . These wheels especially suitable 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 binding wheel and precision machining of ceramic products, ceramic grinding tungsten  core drills carbide and the preferred thermal sprayed layer . CBN grinding wheel can be used with resin glue used in combination for grinding high-speed steel , tool and die steels and superalloys FtRC50 above .

on dry cutting diamond tool Precautions

The current tool materials, such as new carbide, ceramic, CBN and PCBN and other high-temperature wear performance sufficient, able to dry cutting conditions.
  Dry cutting tool materials must have excellent hot hardness and wear resistance as to be effective to withstand  dry pads high temperatures during the cutting process; low friction coefficient, in order to reduce the tool and the chip and suppressing the friction between the surface temperature of the cutting rise. To implement the requirements of the tool dry cutting, it is necessary for the tool coating, is an important way to improve tool performance. In a robust surface coating of the tool base body and  hole saw blades wear resistant materials are very high, so that the cutting tool and the chip in the process of increase of a thermal barrier between, to prevent heat transfer to the tool base body decreases Tool wear and heat generation. The tool geometry, the dry cutting tool design should strive to follow the "low cutting temperature" design principles, the tool must be designed so  flap wheels that the processing structure of the heat generated in the process as little as possible, that the tool structure should strive to achieve low cutting forces and low friction.

Identification of the diamond tool

A diamond single refraction
Diamond single refraction is due to the nature of the diamond characteristics of the decision. While other natural stones or artificial gems are mostly double refraction in nature. Fake  cbn grinding wheel diamond under a 10x magnifying glass from the front, slightly oblique perspective, it is easy to see that angular lines overlapping images, and also showing the two bottom light. Birefringence small differences such as zircon, etc., can also be seen that light at the end of overlapping images.
2, the diamond adsorption
Grease and dirt diamond has a certain affinity, the oil is easily adsorbed diamond. Therefore, the diamond will feel with your fingers stroked tackiness, fingers seem to have slimy feeling. This is not any gems. This approach needs to be trained can only master concrete ring saw  one subtle difference.
3, the characteristic straight line
Diamond polishing the surface is very smooth. With a pen dipped in ink across the diamond, if real diamonds, leaving the surface is a smooth and continuous lines, characterized by straight line. Counterfeit goods leaving behind a small dots lines. This method should be observed with a magnifying glass.
4, the unique adamantine luster
Roughly 100 degrees incandescent light, a good diamond cutting and grinding are compared with counterfeit table saw blades  goods, it is easy to see which has the adamantine luster. This method should not be too dark or too strong in the light is conducted.

red granite plate production processes and points to note

Granite is a volcanic lava from the under considerable pressure in a molten state to the granite surface crust uplift, magma is not ejected the ground, and slowly cooled and solidified in the sds drill bits  ground structure formed after the rock, a Acid plutonic igneous rock types, are igneous rocks. Igneous, also called acid crystals plutonic igneous rock is the most widely distributed as a rock, its composition of silica-based, accounting for about 65% -75%.
Benefits include granite features high load resistance, compressive strength and good ductility grinding, granite very easy to cut and shape, you can create a thin slab, etc. In short, granite with superior endurance capacity.
Granite red plate production process and technology:
First of ferric chloride dissolved in water, and add a small amount of a catalyst made of stain.
Then put into granite and edge polishing pads  completely immersed in the staining solution.
After a certain time in the soaking removed for cleaning, drying, color is obtained after red granite.
(Note soaking time should be according to Stone, color, water absorption, stone clearance and so different to set)
Manufacturing production process should pay attention to the main points:
Color concentration: Different concentrations to get different color effects, the production should look at the actual case may be, the general concentration of 20% for the best.
Soaking time: to have tile cutting blades  enough time to good coloring short time, but the time is too long the job efficiency is not high. Generally take 3-4 hours as well.
Color liquid PH value: PH value is too large and too small right after the color change and gloss granite color is not good, and generally two for the best.
Drying temperature: generally choose 200-250 ℃ (Celsius) is appropriate.
Drying time: usually about 2 hours.

how to choose the right blade

1, the blade selected basic data:
① saw blade outer diameter, the hole diameter;
② cutting object's material, shape and thickness;
③ cutter spindle speed.
2, saw the basis for selection:
International requirements for timber cutting line speed of 40 ~ 70M / S. The industrial sheet metal due to quality and sawn boards are better quality, better quality welding, cutting speed can exceed 80M / S, generic tablets, DIY film quality due to alloy and  sds drill bits sawn boards are poor quality, cutting speed should be relatively low Some.
Cutting speed is too small, the production efficiency; while rapid increase friction, heat stability decreased saws, alloy damage accelerated decline in the quality of the workpiece surface.
Cutting speed is too large, the  concrete saws friction heat increases, machine vibration, noise is also large, cutting stability decreased, the surface quality of the workpiece is decreased; cutting material of the alloy also increases impact resistance, chipping prone alloy phenomenon.
In practice, by reducing the diameter of the methods to reduce the cutting blade speed; speed to increase by increasing the cutting speed.
Second, on the question blade purchase price
Carbide also has high hardness (wear resistance) and brittleness (poor impact resistance) characteristics, the carbide saw blades  characteristics determine the most wear-resistant alloys are not accompanied by the best saws can get the longest use life. However, the object can be cut material properties, thickness, quality requirements to select a different hardness, strength of the alloy and the rational design of the tooth to achieve the best match between, get the longest life, the highest cost performance.

corundum ceramic grinding wheel

Vitrified grinding characteristics: grinding power, high speed machining workpiece does not burn, and  granite blade  durability can be corrected speed and efficiency advantages of precision grinding tools for precision grinding of large quantities, the processing of the workpiece hardness. Wheel granularity selection principle: a coarse-grained grinding wheel Suitable for: soft material like soft iron and non-ferrous materials such as feed volume, surface roughness less demanding, grinding big occasions two contact surfaces, fine-grained grinding wheel for : and  granite core bits coarse corundum grinding wheel opposite hardness, lower toughness, suitable for hardened steel, alloy steel, high speed steel and other materials, grinding, can also be used for thread machining gears and thin-walled parts. Supply Grinder with corundum grinding wheel, vitrified grinding wheels, large mill wheel

carbide drill bit selection

The so-called carbide is tungsten carbide powder as matrix, cobalt powder as a binder by pressurized sintering. Generally contain 94% tungsten carbide, 6% cobalt. Because of its high hardness, very wearable, a certain strength, suitable for high-speed cutting. But the toughness is poor, very brittle, in order to improve the performance of cemented carbide, and some use carbide substrate in a chemical vapor deposition on a 5-7 micron layer of special hard titanium carbide (TIC) or titanium nitride (TIN), to has a higher hardness. Some use ion implantation technology, titanium, nitrogen, and carbon injection the matrix certain depth, not only improves the hardness and strength and regrinding the drill can move into when they injected ingredients. There is a physical method to generate the bit at the  carbide saw blades top of a layer of diamond film, which greatly improves the hardness and wear resistance of the drill.
Drill material selection
The processing characteristics of the material required bit has the following characteristics: hardness of the drill must be greater than the hardness of the workpiece; drill workpiece as to withstand a considerable torsional and axial forces, it must have sufficient strength and toughness; Since the processed material toughness, requiring cutting edge sharp enough, so the tool material must have sufficient wear resistance, so as to reduce the work hardening; Since the chemical properties of the workpiece to be higher, thus requiring the tool material and titanium affinity worse in order to avoid the spread of stroke caused by sticking knife, broken drill phenomenon.
Currently, the tool for doing extremely numerous types of materials, including tool steel, carbide, superhard materials.
Initially, attempts to carry out the ordinary high-speed steel drills coated test, inexpensive ordinary high-speed steel drills, when using coating technology, can significantly reduce the friction coefficient of the tool and the workpiece, to improve tool life. However, due to the higher speed machine, using drill strong enough, causing the drill breaks during processing, the effect is not ideal.
Carbide is the latest developed a tool material, suitable for most materials, rough finish, such as steel, cast iron, special materials and plastics. To this end, decided to use solid carbide drill bit.
Drill grinding to determine the ring saw blades  parameters
1 Twist the main auxiliary plane
Twist several major auxiliary plane base surface, cutting plane, the profile and column profiles.
If you do not consider supplementary motor, the main cutting edge twist drill of any point on the base surface, the architectural features of the twist drill, drill points on the main cutting edge of the base surface is variable.
Any point on the main cutting edge of the cutting plane, a cutting direction but contains the point tangent to the plane of the surface of the machining point. Perpendicular to the cutting plane and the base plane, and the main cutting edge of the cutting plane of the points are not the same. Any point on the main cutting edge of the column cross-section through the center line of the drill point and the center line of the cylindrical surface and do, the main cutting edge on a different type of column cross-sectional radius of the cylindrical face.
2 Twist drill main geometric parameters of the selection
Twist drill main geometric parameters include the choice of angle drill, drill cutting edge rake angle and clearance angle choice drill bit life helix angle on edge of impact analysis and related processing.
Drill angle determines the width and drill chips the size of the anterior horn. When the drill diameter and feed rate constant, increasing the angle, the iron narrowing unit to reduce the load on the cutting edge. Angle has a great influence on the rake angle, a corresponding increase in angle will help to improve terrible at cutting conditions. Influence the direction of chip flow angle. According to the relevant tool design data, combined with the hardness of the processed products is not high, but the viscous characteristics, select the drill angle of 140 °.
The first twist angle is other geometric parameters of the bit decision. In high-speed cutting machine tools, rake angle on the cutting deformation and cutting force has little effect, while using a smaller rake angle can be enhanced tip strength. This angle is determined, after the angle, the more sharp edge, but it will be reduced accordingly wedge angle impact tool strength and heat dissipation area. To this end, the selected bit smaller horn, taken as 8 °.
3 drill bit life helix angle on impact analysis
Shows the shape characteristics of the twist drill points on the cutting edge is variable helix angle, the helix angle of a direct impact on the rake angle of the main cutting edge. Helix angle is larger, the more sharp edge, cutting more light, otherwise it will cause severe hardening makes the blades wear out quickly. According to the relevant tool design data, take the helix angle of 30 ° to meet the application requirements, while allowing for mass production.
4 edge correlation processing
The processing includes chisel edge correction, chamfering and inverted blade and other measures. For the material to be processed, machining properties, processing parameters and conditions such as clamps, cutting edge of the bit for a suitable passivation, improve drilling performance of the drill bit, reduce tool wear.
Coating technology
In the case of constant cutting parameters, in order to improve production efficiency and reduce production costs, use of the tool coating technology to reduce tool wear, in order to improve tool life is increasingly becoming a trend.
Tool coating refers to the strength and toughness of cemented carbide or high speed steel (HSS) surface of the substrate by vapor deposition method, a thin layer of good wear resistance of the tile cutting blades  coating of refractory metal or non-metal compounds. As a chemical barrier coating and thermal barrier, reducing the tool and the workpiece between the diffusion and chemical reaction, thereby reducing tool wear. Coated tool with high surface hardness, good wear resistance, chemical stability, heat resistance, oxidation, friction factor is small and low thermal conductivity and other characteristics.
After coating the drill after a number of processing has been improved significantly, unit cost is greatly reduced.
Carbide hardness and strength, not only the ratio of cobalt and tungsten carbide, but also with the powder particles about. Carbide drill ultra fine particles, and its average grain size of tungsten carbide with 1 micron or less. This bit is not only high hardness and compressive strength and flexural strength are improved. To save costs Many drill shank welded structure, the original as a whole are carbide drill, drill shank back now made of stainless, but significantly reduced the cost of the material due to different concentricity less than its dynamic rigid whole alloy drill, particularly in the small diameter side.

the diamond wheel diamond place

 Transition index equal to the diamond layer adjacent to the substrate

secure in the sector. Our base for convergence abrasive layer and in the use of

time by flange firmly clamped grinding spindle.
     Suri environment outside as more rounded shape. There is not a diamond

wheel diamond produced from. It may be divided into three layers, namely task

layer, the tct blades  substrate, the transition layer. As long as the task layer is called

the diamond layer, the abrasive agent and filler compact form determines its

seems like diamond to do tough weakness. Transition layer and the  sds hammer drill bits substrate are

non-diamond layer.
     Even as a diamond grinding wheel sand root arrived with its most empty

thinking is to see consistent use of materials abrasive. Its primary organs are

made of metal powder, resin powder, ceramic and  brick saw blades metal plating as liaison agent.
    How the diamond wheel on three disjointed comprehensive alone. Like a

corporate team, this three Qianan choice with a good grade diamond wheel

diamond place.

Classification of diamond tools

Natural diamond (ND) Tool
As a natural diamond pull vine peak spectrum, has the following characteristics:
(A) is displayed at the 1332 Rush existence diamond.
(2) wave amplitude (FWHM) of 4.1cm-1
Displayed as pure diamond. ND is the hardest known mineral substances, mainly for the preparation of turning tools. Fine grinding of natural diamond tool edge radius of up to 0.01 ~ 0.002μm. Where natural single crystal diamond (Single Crystalline Diamond, SCD) cutting edge parts by high magnification 1500x still observed blade smooth. Ra SCD when turning aluminum pistons reach 4μm, and in the same conditions using PCD cutting tool machining time of the surface roughness Ra of 15 ~ 50μm. So the cutting discs  use of SCD tool with precision lathes for precision and ultra-precision machining, get the mirror surface.
Polycrystalline diamond (PCD) cutting tools
PCD is a high temperature high pressure conditions by cobalt and other metal-bonded to synthetic diamond powder sintered polycrystalline material gathered, also known as sintered diamond. Overall sintered polycrystalline diamond cutter cutter for milling, PCD grain was disordered arrangement state, is isotropic, uniform hardness, graphitization temperature is 550 ℃. Tool has high hardness, high thermal conductivity, low thermal expansion coefficient, high elastic modulus and a low coefficient of friction. They are very sharp and so on.
Synthetic polycrystalline diamond compact (PDC) cutter
In order to improve the toughness of PCD inserts and weldability, often made of PCD and carbide cutter body synthetic polycrystalline diamond composite blade (PDc). The surface of the cemented carbide substrate being suppressed 0.5 ~ 1mm thick layer of sintered PCD. The flexural strength of the composite blade with carbide consistent hardness close to PCD, PCD can replace the use. PCD and synthetic polycrystalline diamond compact (PDC) cutter sharp edge and workpiece surface quality than ND. While its workability is poor, the grinding ratio is small, it is difficult according to the turbo diamond blade  geometry of any head shape. Current use of synthetic polycrystalline diamond compact Preparation Tool only, still can not be manufactured with chipbreaker indexable inserts and complex three-dimensional surface geometry cutter.
CVD diamond films (TDF) Soldering Tool
Thick welded diamond cutting tool is good to laser welded to a CVD diamond thick film substrate (usually a class K carbide) to form a composite sheet, and then polishing composite sheet, the second welded to the tool body, sharpening as needed the shape and edge. Figure 3 (a) shows, for the CVD diamond films (diamond film thickness of 30μm), with high hardness, wear resistance, low coefficient of friction, etc., is to create cutting non-ferrous metals and non-metallic materials, the ideal tool materials. Because diamond welding process complex process, CVD diamond films (TDF) welding tool yet high-volume applications.
Diamond coated tools
Diamond coated tools are directly in the cemented carbide by a CVD method (K class carbide) or ceramic layer deposited on the substrate 1 ~ 25μm diamond films, no cleavage plane isotropic. Figure 3 (b). Film coated tool hardness of 9800 ~ 10000HV. High thermal conductivity, thermal conductivity at room temperature up to 2000W · m-1 · K-1, while the carbide thermal conductivity is only 80 ~ 100m-1 · K-1. Diamond CVD method may be coated to any complex shape of the tool, which is polycrystalline diamond can have the most significant advantages.
Cubic boron nitride (PCBN) cutting tools
Cubic boron nitride (PCBN) following the  hole saw blades synthetic diamond hard appears after the second inorganic material, the hardness slightly inferior to diamond, thermal stability, good heat resistance up to 1400 to 1500 degrees, the heat resistance than diamond Xing (700-800 degrees) is almost twice as high. cubic boron nitride (PCBN) cutting tools is mainly suitable for processing a variety of ferrous metals and their alloys; most suitable for a variety of hardened steel (carbon tool steel, bearing steel, high speed tool steel steel) pearlitic gray cast iron (cast iron vanadium and titanium) chilled cast superalloys (nickel base alloy cobalt-based alloys) and surface coating welding processing. has a long life and reduce the number of tool changes, compensation down the time spent, for NC machine tools and automated production line efficiency can be more fully exploited, can change the traditional mechanical processing methods (ie, before quenching with a tool with a grinding wheel roughing and finishing after quenching method), which can be in a quenching CNC machine tools after quenching before turning (turning instead of grinding), with good economic benefits.

diamond saw Introduction

 After pondering the diamond is a diamond, diamond is a natural mineral, is a rough diamond. Simply put, diamonds deep in Earth pressure, high temperature conditions to form a composed of carbon elemental crystals. Although human civilization thousands of years, but it was discovered and the initial understanding of the diamond is only a few hundred years, and really uncover the mysteries within the diamond blade saws  even less time. Prior to this, it's just fabulous along with religious worship and fear of the legend, while it as brave, power, status and dignity of the symbol. Today, diamonds are no longer mysterious, but not only can enjoy the royal treasures. It has become the people they can have, wear mass gems. Diamond's culture and  diamond core drills long history, more people today see it as a symbol of love and loyalty.