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

Single Crystal Diamond tools of design principles

Single crystal diamond tool design principles and the use of technology are mainly the following points.
1 single crystal mirror processing mechanism tool
    Residual area after cutting height h = f / (ctgkr + ctgkr ') is machined surface roughness value theory, it varies with the feed rate f, the main tool and vice declination angle kr kr' is reduced and the concrete saws  reduced. As the main angle kr Fy force will decrease rapidly increased vibration caused by knives, reduce the feed rate f will affect the cutting efficiency, it is generally by reducing the deputy angle kr 'to reduce the surface roughness.
    Conventional cutting tool surface is rough, poor edge formation, if the angle is too small selection of the sub, one secondary cutting edge is not mapped to complex formation would have been processed on the surface; also exacerbate other and have flanks machined surface friction, the machined surface "nap." Therefore, in conventional cutting, machining deputy angle of about 2 ° surface roughness value of the minimum, further reducing the deputy angle will make the deterioration of the surface quality of the machined.
    Surface roughness can be smaller than a single crystal diamond tool Ra0.01? M, edge quality can be achieved at least 100 times under a microscope to observe a defect, the coefficient of friction combined with minimal, so the relief angle can be reduced to the limit of 0 ~ 2 ', thereby allowing the dry core drill bits  surface roughness is equal to zero or close to the theoretical value, the actual value of the surface roughness of the mirror can reach or exceed the requirements of a smooth surface.
    Thus, the tool itself, the mechanism of single crystal mirror processing tool is through ultra-smooth surface of the tool and defect secondary cutting edge (wiper) the role of the surface roughness to the theoretical value is close to zero processing mirror-processing results.
Single crystal diamond tool design
    Design Tool monocrystalline main factors to consider when you are: ① be required precision machined parts; ② actual processing conditions; characteristics ③ diamond material.
    Design monocrystalline tool, you should follow the drum wheels  following principles: ① As the single crystal diamond high hardness, processing difficulties, so the shape of the tool should be as simple as possible; ② based on single-crystal diamond brittleness, poor impact resistance characteristics, should be combined with the actual processing conditions by optimizing the shape of the tool geometry, improve head impact resistance; ③ is designed according to the length of the wiper blade precision machined parts, taking into account the ability of the tool cutting thin

Some of the major role of Core Drill Bits

First, what is the drill
Is used to drill a workpiece to drilling tools.
Drill generally just (W18Cr4V or W9Cr4V2) made ​​of high-speed, divided twist , flat drill, center drill , countersink hole drilling, deep hole drilling , which is our twist fitter , machining the most  GUSHI metal grinding wheel common drill .
This is a paper I have to talk about is the main method of twist drill sharpening its restructuring . I began to talk about from the twist , first introduces the basic knowledge under twist .
Twist the type and structure:
Straight shank twist drill into , Morse taper shank . Generally straight shank twist drill diameter 13mm or less in diameter Morse taper shank twist drills are in 13mm or more. Typically the twist handle , neck , working part , wherein the working portion and the guide portion , the cutting part . Specifically as shown in Figure
( A ) the handle - is generally used to transfer the clamping force and a smaller diameter than Φ13 mm straight shank drill made ​​it , no clear straight shank drill neck , the diameter of the drill , trademark etc. engraved on the handle directly . Φ13 mm and a diameter greater than generally made taper shank drills , taper shank drills taper is produced according to national standards , according to the size of the drill diameter and made Mohs 1 #, 2 #, 3 #, 4 #, 5 #, etc. taper, the larger the size of the handle numeral greater . Flat tail taper the ends for easy removal and  GUSHI diamond bandsaw blades transfer torque from the drill bit role.
( 2 ) Neck - The neck is connected to the handle portion and a portion of the work , but also for the grinding wheel retraction drill is used , the diameter of the drill itself , materials and trademarks are engraved on the neck.
( 3 ) working part - it is divided into two parts ① cutting guide and the guide portion twist to the right direction to keep working , and when re- sharpening drill bits , cutting guide portion and gradually become part and to work. The guide portion has two parallel helical grooves , is to be formed to accommodate the cutting edge and the removal of the GUSHI turbo diamond blade  chips and facilitate the input of the cutting fluid . There are two edges with a guide portion , its diameter is slightly inverted cone , every 100mm length , shank diameter is reduced to 0.05-0.10mm, both to guide the direction of the drill bit cutting , but also can reduce the drill hole wall friction . ② a key part of the cutting portion of the drill bit , the flank twist of six , five blade consists of: a rake face comprising two , two rear flank , two sub behind the two main cutting edges , two auxiliary cutting edge , a horizontal edge , namely " a sharp three blade ." As shown in Figure
Through these two points , I believe we have fully understood the basics of the drill point , so I can deeper introduce myself sharpening methods and steps up .
Twist mainly by cutting part of the cutting , but we have to start from the drill bit is also part of the transformation . Start sharpening my own way to start talking .

the two kinds of natural diamond

Natural diamond as found in nature is the hardest material. Using it as raw materials to produce diamond grinding wheel, with fast cutting, wear characteristics, the majority of users. But the natural diamond is limited, so synthetic diamond is made. So we often  core drills say that the diamond wheel is divided by the two kinds of natural diamond and synthetic diamond.Using synthetic diamond as the main diamond abrasive wheel made of diamond substantially retains the characteristics of the grinding sharp, high efficiency, to maintain a good precision, the actual production applications, but also has a large-scale use of natural diamond and a large natural resources, faced with fewer and fewer of the situation, so as to enhance the price of such products, in most respects, this diamond wheel than the synthetic diamond has certain advantages, but in some respects, but also to some  abrasive tools extent artificial diamond make up for the shortcomings of such a diamond wheel, the two complement each other.
Diamond grinding wheel sharp, high efficiency and high precision grinding, due to its unique nature has been widely used in various industries.A grinding wheel rotating at high speed process, if flying or chipping will cause casualties, mainly due to quality, but off wheel or wet tile saw  chucking irregularities.
Second, the process of the grinding wheel will produce a lot of powder layer, the operator needs to wear a mask, or prolonged inhalation of this powder layer can cause respiratory disease, lung disease

types of grinding inner circle

Grinding inner circle divided into the following four categories: speed electric aerostatic bearing inner circle grinding, grinding inner circle of mechanical transmission, pneumatic and electric grinding inner cutoff wheel  circle inner circle grinding.
Aerostatic bearing speed electric grinding inner circle: The aerostatic bearing (supply pressure is 40 ~ 65MPa), grinding system rigidity, both electric grinding characteristics, speed up 180000R/MIN, suitable for grinding a ~ 10MM hole.
Inner circle grinding mechanical transmission: mainly by the spindle, bearings, sleeve body shell, flat supporting pulleys and other components. Then, after replacement of the long axis, is used wet diamond polishing pads  to grind different bore diameter and length, for comparison, the use of low speed, the speed is generally lower than 2000R/MIN.Wind-driven inner circle grinding: spindle with a turbine driven by compressed air turbine rotates the spindle speed, spindle speed reaches 10000R/MIN. Moreover, small vibration, pressure can be adjusted stepless. And with regulators, filters and other accessories.Electric grinding inner circle: A three-phase floor polisher pads  asynchronous motor direct drive, and another by a high-frequency electric motor driven spindle speed of up to 50000 ~ 90000R/MIN. Output power is larger, instantaneous overload, speed characteristics hard, little vibration.

Diamond saw blades range of applications

(A) the processing of non-ferrous materials difficult to machine
Processing 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  concrete ring saw 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 machine
Processing 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 diamond bandsaw blades  the tool wear serious, hard

carbide cutting tools processing, and diamond tools, high hardness, wear

resistance, and therefore processing efficiency.
(3) ultra-precision machining
With 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 diamond tool manufacturer  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.

Line speed is not high , an increase in cutting efficiency , will reduce the life of the blade

feed rate , depending on the processing of the material properties of each material when the cutting depth must have a certain range of the feed rate , if the speed is too high, will accelerate the masonry drill bits  wear of diamond or even fall off , causing the blade consumption too fast , if the speed is too low , then they will make the process of self-sharpening blades can not be normal , so " blunt , skid " lost cutting capacity . Under normal circumstances , the feed speed is slower when cutting , sawing should be in uniform for the common typical materials , when the cutting depth is 20mm, recommend the following feed rate table for your reference , when the thickness changes, the cutting speed can be press the cutting area (cm2/min) to conversion .
Tip: The first feed or each piece of board should be reduced by half for the first three walks .
Common materials saw feed speed unit : mm / mi the cutting depth for medium hard stone such as marble , limestone cut through at once , for hard stone and abrasive such as large granite, sandstone should step cutting, saw cutting granite monolithic , eating knife depth is generally 10-20mm , depth of cut marble cutting 50-100mm, more than double-sided cutting hard granite , depth of cut of each 3-5mm, should be based on the turbo blades  hardness of the stone , using a saw blade and the fixed performance , efficiency recommend the following table for your reference.
Common materials cutting efficiency table Note: " 1 " indicates low power finishing ; "2" indicates a high power roughing. the blade rotation direction of the same stone as the feed direction along the cutting , contrary to reverse cutting, and reverse cutting, due to an upward vertical force component , in the form of stone off potential, therefore , is a solid stone, under the same conditions next , you should try using tct circular saw blade  smooth cutting . When using reverse cutting, cutting depth to be reduced , generally reduced to shun cutting 1/3-1/2  In summary, the basic requirements for selection cutting process are: low hardness, good stone cutting performance can be deeply walking , brisk walking contrary shallow cut , ie corresponding to the same stone and saw and saw blade should be cutting efficiency, cutting board , good quality, long life blade and matrix process parameters prevail , the four complementary and mutually dependent , must not generalize . For example, when the saw blade cutting speed can not be maintained , indicating a blunt blade , cutting depth should be reduced while increasing the cutting speed to sharpening blades.

Alloy Saw Industry Analysis narrative

An alloy saw blade when grinding many factors can not be ignored
1, the matrix deformation, inconsistent thickness, bore tolerances big. Congenital defects of the base there is a problem, no matter the kind of graphics device, there is grinding errors. Matrix deformation on the two side angle bias; matrix inconsistent thickness right rear corner and edge front corner of bias, such as the existence of cumulative tolerance is too large, the quality and accuracy of the blade severely affected.
2, grinding teeth grinding effect on the core bits for concrete  structure. Alloy saw blade grinding machine structure and assembly is good or bad, about two types of models currently on the market: one is floating in Germany Seoul ink types. The type with vertical grinding off, all the advantages of hydraulic stepless movement, all of the feed system using V-shaped guide rail and ball screw work, grinding or big arm with slow feed forward, rewind retraction, Clips cylinder regulator heart, flexible and reliable support piece, pulling teeth accurate positioning, strong self-centering blade positioning heart, arbitrary angle adjustment, cooling flush reasonable, man-machine interface, high precision grinding off, pure grinder rational design; Type II, which is currently Horizontal such as Taiwan and Japan models, the presence of mechanical transmission gears and mechanical clearance dovetail slide accuracy, stable performance low clip, branched tablet core adjustment difficult, pulling teeth institution or poor reliability, flat two sides, left and right rear corner is not a heart-mill cut, resulting in large deviation angle difficult to control, mechanical wear disaster ensure accuracy.
3, welding factor. Welding alloys deviation and impact grinding precision, resulting in a large pressure while grinding, while pressure is small, the posterior horn of the same generation of the above factors, welding angle difference, human unavoidable factors, all of the grinding wheel and other factors generates unavoidable impact.
4, wheel width affect the quality and  cbn grinding wheel size. Optional wheel running gold films, note wheel size, granularity is too coarse grinding wheel produced traces wheel easy to plug the optional fine granularity grinding less easy to burn knife. Grinding wheel diameter and length width thickness is based alloy and alloy tooth width or different each face the situation, not a corner after corner or front wheel specifications are the same as any different from tooth grinding, must be targeted to choose a suitable Specifications Wheel.
5, grinding feed speed. Alloy saw blade grinding entirely good or bad decision grinding feed rate, generally alloy saw blade feed rate at from 0.5 to 6 mm / s can not exceed this value should be 20 per minute teeth, the ultra in every minute 20 tooth feed rate is too large, it will have serious knife tumors or burning alloy wheel impact generated convex and concave surface precision grinding wheel wasted.
6, grinding feed rate, the choice of wheel size on the amount of feed has an extremely important significance. General grinding wheel recommendation to use 180 # 240 # 240 # to use at most an opt 280 # 280 # to 320 #, or to adjust the feed rate.
7, grinding heart. All grinding the blade and the substrate for the heart, rather than with the blade of the heart, get it out of the heart surface grinding, horn, front corner with a machining center can not be sharpened a saw blade, saw blade grinding three processes Heart not be ignored. Side angle grinding alloy thickness is still careful observation, the thickness of different grinding heart changed, regardless of the thickness of the  granite polishing pads alloy to, the grinding surface grinding wheel center line of the welding position to be maintained in a straight line, or have a poor impact angle cutting.
8, pulling teeth institutions can not be ignored. Regardless of how the structure of any grinding, pulling teeth designed to coordinate accuracy sharpening design quality, machine adjustment pulling teeth acupressure reasonable position in the tooth surface, and not with the move is extremely critical, back teeth when pulling t

artificial diamonds are widely used in industrial drill bits

 Artificial diamonds very versatile tool Jufan drill, mining or medical use are all with diamond excellent thermal conductivity (five times that of copper) has become the electronic components on the  Acrylic impact modifier excellent heat sink. Today, artificial diamonds is a big industry, about 20 countries put into production, annual production of about 300 tons, more than 20 tonnes of the total production of natural diamonds are fifteen times as much, and is growing year by year. However, these diamonds are tiny powder, granules or film, few large particles gem crystal, crystal large and complete manufacturing facilities require a larger cavity, the PVC stabilizer for panel high cost of many. More concerned about the jewelery industry gem near colorless and colored artificial diamond development, as well as whether to distinguish natural diamonds in causing distress.
Besides, as the carbonaceous material in the purification of carbon, may, after removal of other elements, and pressure at the appropriate level, into the diamond. Means one excellent source of methane, carbon, and fermented cow dung into biogas rich in methane, and  vegetable stearic acid  therefore, "dung becomes diamond" one said. In recent years, the system is also rife with cremains diamond, is the same reason. It is reported that some people abroad to take the legacy of Beethoven's music maestro hair do "fat diamond", reported in a bit of 10, the amount of carbon in the system out of the electronic media should be enough to shine out of the sinking pleats pleated shiny "carat" Blue Diamond, can only speculate about the drill in the part of the carbon!

carbide saw blade quality and quality of processed products are closely related

Carbide saw blade containing the type of alloy, the substrate material, diameter, number of teeth, thickness, profile, angle, diameter and other parameters that determine the processing capacity grinding cup wheels  and cutting blade. Select the saw blade sawing according to the type of material, thickness, cutting speed, cutting direction, feed speed, kerf width requires the correct selection of blades.
(A) the choice of carbide species
Commonly used types of tungsten carbide cobalt (code YG), tungsten titanium category (Code YT). Since tungsten carbide cobalt impact resistance is better in the wood processing industry more widely used. Commonly used in wood processing model YG8-YG15, YG behind the numbers indicate the percentage of cobalt, cobalt content increases, the alloy impact toughness and flexural strength has increased, but the hardness and wear resistance has declined, to be selected according to the actual situation.
(B) the choice of substrate
1.65Mn spring steel elastic and plastic, material economy, good hardenability, the heating temperature is low, easy deformation can  General purpose blade be used for less demanding requirements of the cutting blade.
(2) high carbon tool steel carbon high thermal conductivity, but by the temperature of 200 ℃ -250 ℃ sharp decline in its hardness and wear resistance, heat deformation, poor hardenability, tempering longer easy to crack. Materials such as tool manufacturing economy T8A, T10A, T12A and so on.
3 alloy tool steel and carbon tool steel, heat resistance, wear resistance, good processing performance, heat distortion temperature of 300 ℃ -400 ℃ suitable for manufacturing high-grade alloy circular saw blades.
4 high-speed tool steel has good hardenability, hardness and rigidity, less heat deformation, is ultra-high strength  core bits for concrete steel, high-grade thermoplastic stable suitable for manufacturing thin blades.
(C) the choice of diameter
Saw blade diameter with the use of cutting equipment and cutting the workpiece thickness. Saw blade diameter is small, the cutting speed is relatively low; Saw blade diameter and sawing equipment requirements for the necessary high, while the cutting efficiency is high. Depending on the diameter of the blade circular sawing machine model selection with a diameter matching blades.
Standard parts diameter: 110MM (4 inches), 150MM (6 inches), 180MM (7 inch), 200MM (8 inches), 230MM (9-inch), 250MM (10-inch), 300MM (12-inch), 350MM ( 14-inch), 400MM (16-inch), 450MM (18-inch), 500MM (20-inch), etc., precision panel saw blade multi bottom slot designed to 120MM.
(D) selection of teeth
Serrated teeth, in general, the more teeth, in the unit time, the more the cutting edge, cutting as possible, but the number of cutting teeth carbide required more and more, the high price of the blade, but too close serrated , teeth of the chip becomes small, easy to cause the blade fever; another jagged too, when the feed rate mis-match, then cut each tooth small amounts, will exacerbate friction with the workpiece edge, affecting the life of the blade . Typically tooth spacing 15-25mm, material selection should be based on a reasonable cutting teeth.

More extensive use of diamond saw blade

More extensive use of diamond saw blade, in all fields of social construction plays a relatively important role, therefore, for the use and preservation of diamond saw many users are not very understanding, this concrete core bits  will affect the performance of the blade and the use of time, Please note the following points of our customers.
Diamond saw blade steel substrate 45 in a specific environment, such as air is very humid, air containing acidic gases or diamond cbn wheel  alkaline substances, can lead to accelerated oxidation corrosion of the blade surface, there is no use will rust, so , saw not on the environment, should be sealed up and stored in a dry place. The larger diameter of the saw blade (300mm or more in diameter), when the stored preferably coated with a layer of oil, in this case, the blade will not decrease the quality of the performance.
Some diamond saw blade thickness is  concrete vibrator relatively thin, mainly used in special places, the matrix is ​​relatively weak, so the blade can not be stacked when stored, but can not place items above in order to avoid blade deformation, affect the results.

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 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 masonry blades   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 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.
Jewellery approved spent knife
Jewellery approved spent knife used in gold, silver jewelry milled leaf-shaped patterns, is actually a molding cutter, its granite polishing pad  head shape shown in Figure 2. Sharp knife at between 110 ° ~ 150 °, to accommodate different size and depth of the pattern processing. As approved spending machine structure is simple, poor rigidity, vibration, combined use of intermittent dry cutting, processing conditions are very poor, so the batch spent knife blade needs to have a strong impact resistance. 5 ° negative rake angle and 1 ° ~ 1.5 ° angle can effectively increase the rear edge strength, while the smaller rear corner between the tool and the workpiece can make proper squeeze by, the cutting will not "guilty" to prevent cutting vibration In the machined surface "chatter."
Batch processing jewelry case and took the knife and some high-light decorative parts with a tool roughly the same design principles, such tools requires 200 to 500 times the blade under the microscope without chipping.
Contacts Tool
Very soft contact lens material, and  Diamond tool a certain tensile strength, generally circular material cutter blade of the knife is too large, difficult to make cutting. Since there after turning a polishing step, thus turning the surface roughness of only required to achieve Ra0.1μm, turning the main purpose of having a convex curved surface shape precision, the main requirements of the tool sharp blade sex. The head shape of the lens turning tool shown in Figure 3. To meet the needs of the cutting surface of the concave circular arc, using a 15 ° relief angle, requires the blade under a microscope at 100 times without chipping.
3 single crystal diamond tool use and maintenance
Single-crystal diamond tool brittleness, combined very sharp shocks prone to chipping, so far as possible in a smooth, vibration-free working conditions of use; while also maximizing the workpiece and tool chucking rigidity and the entire rigidity of the system to increase its anti-vibration capability. Cutting the amount of not more than 0.1mm appropriate.

diamond grinding wheel wear problems

Diamond Wheel inevitable after prolonged use wear and damage , this time we need to staff promptly replaced , here we sds hammer drill bits  come briefly under diamond wheel replacement note:
Wear problems :
Any wheel has its use wear certain requirements to achieve a certain degree of wear must be re- replacement of the grinding wheel . Not in order to save material , it requires the use of masonry drill bits  ultra- wear , which is a very unsafe violations . General rule, when the wheel wear to chuck diameter than the diameter of 10mm, it should be replaced with new wheel .
Valid question: from the Treasury brought out a new wheel is not necessarily qualified wheel, or even buy a new wheel from the factory are not necessarily qualified wheel . Any wheel has its certain expiration date, the expiration date of use, it is qualified wheel ; than valid to use , it is not necessarily qualified wheel . Statutes provides that " wheel should be used within the validity period , resin and rubber bonded grinding wheel storage after one year must be approved by rotation test , those  bandsaw blades who pass before using ."
Texture questions:
During use , if found partial wheel cracks should immediately stop using and re- replacement of the grinding wheel , grinding wheel to avoid crushing injury accident .

on the blade cutting

1, idle: in particular, the first use of a new base, the need to idle for about 30 minutes, the summer hot season needs to bring water idling, which aims to further eliminate welding head when matrix effects and enhanced blade rotating at high speed state to maintain sand paper  the intrinsic quality of memory.
2, blocks of not less than 0.5m3, and placed securely, the bottom should be well-wood pad, plug SUCOOT prison, blocks should be located in symmetrical positions workbench, workbench cars and blocks to ensure the stability, without shaking , shaking phenomenon.
3, according to the blocks of length, width, height adjusting limit switch, the blade lift and skip the trip in a reliable and effective range. Saw blade should leave before sawing blocks up to 10 ~ 20mm. After sawing, saw cut should be left away from the blocks at the bottom of 20-40mm, knife blade to go about running, you should exit all blocks Jukou the blade from not less than 150-200mm, to prevent the blade hit Shortage material.
4, the blade idling stable only after a trial cut blocks are not allowed contact with the blade starts cutting edge blade, cutting blade rotation are not allowed to stop, to withdraw Jukou before stalling.
5, cutting blocks are shaking if found should immediately stop cutting the blocks to be firmly fixed before it can continue working, cutting, are not allowed to move in any blocks.
6, the cutting blade and found a significant slowdown or even clip knife phenomenon, it may be belt slippage, compression nut loose or too large depth of cut, the cutting speed is too fast and other reasons, should be timely adjusted.
7, the line speed should be  metal drill bits processed stone hardness and wear resistance to adapt, line speed table are recommended cutting different types of stone. Tip: line speed is not high, an increase in cutting efficiency, will reduce the life of the blade.
8, feed rate, depending on the processing of the material properties of each material when the cutting depth must have a certain range of the feed rate, if the speed is too high, will accelerate the wear of diamond or even fall off, causing the blade consumption too fast, if the speed is too low, then they will make the process of self-sharpening blades can not be normal, so "blunt, skid" lost cutting capacity. Under normal circumstances, the feed speed is slower when cutting, sawing should be in uniform for the common typical materials, when the cutting depth is 20mm, recommend the following feed rate table for your reference, when the thickness changes, the cutting speed can be Press the cutting area (cm2/min) to conversion. Tip: The first feed or each piece of board should be reduced by half for the first three walks.
9, the cutting depth for medium hard stone such as marble, limestone cut through at once, for hard stone and abrasive such as large granite, sandstone should step cutting, saw cutting granite monolithic, eating knife depth is generally 10-20mm , depth of cut marble cutting 50-100mm, more than double-sided cutting hard granite, depth of cut of each 3-5mm, should be based on the hardness of the stone, using a saw blade and the fixed performance, efficiency recommend the following table for your reference. Common materials cutting efficiency table Note: "1" indicates low power finishing; "2" indicates a high power roughing.
10, the blade rotation direction of the same stone as the feed direction along the cutting, contrary to reverse cutting, and reverse cutting, due to an upward vertical force component, in the form of stone off potential, therefore, is a solid stone, under the same conditions Next, you should try using smooth cutting. When using reverse cutting, cutting depth to be reduced, generally reduced to shun cutting 1/3-1/2.
11 In summary, the basic requirements for wet saw blades  selection cutting process are: low hardness, good stone cutting performance can be deeply walking, brisk walking contrary shallow cut, ie corresponding to the same stone and saw and saw blade should be cutting efficiency, cutting board, good quality, long life blade and matrix process parameters prevail, the four complementary and mutually dependent, must not generalize. For example, when the saw blade cutting speed can not be maintained, indicating a blunt blade, cutting depth should be reduced while increasing the cutting speed to sharpening blades.

The main scope of the blade

a variety of saw blade corresponding to the type of surface treatment material is cut, not scientific titanium blade, the blade base is important to be good enough, or deflection and the cutting accuracy is not necessarily be increased.
HSS saw blade: red brass (P treatment or treatment E), iron pipes (standard), iron bars (standard), stainless steel (E process), aluminum (standard) and so on. Tungsten carbide blade (TIPPED SAW tungsten steel): SS330, SS400, S10C, S12C, S15C, S17C, S20C, S22C, S25C, S28C, S30C, SGD, SCR415, SCM415, SNCM415, S33C, S35C, S38C, S40C, S43C , S45C, S48C, SCR420, SCM420, SNCM220, S50C, S53C, S55C, S58C, SCR430, SCR435, SCR440, SCM430, SCM435, SCM440, SUJ2, SKD11, SUS304
Cemented tungsten carbide blade (Carbide): For grooving or cut off. For special materials such as titanium,  wet saw blades plastic and so on. Or small material cut off. Because there are now many new materials appear, whether it is a new super-hard alloy, hard plastic, all kinds of capillaries, frozen goods, such as different cutting requirements or higher cutting accuracy requirements, you can contact us. Use circular saw blades frequent problems through our many years of experience, customers using the blade when the problems that may occur and the reasons: Important!! Problem: cut timber skew, of varying lengths, cutting uneven surface, a flash, saw piece deformation, broken teeth, broken blade, short life
Reasons: (many situations because it is not caused by attention to detail)
Material: Sometimes the problem is with the material to be cut, because there are too many materials purchased impurities, so when the blade hit these impurities particles, super-hard blade may break or give great sound, cut out of the surface will be uneven. But with softer HSS saw blade can not break, but the results will be skewed cutting phenomenon, because the blade when in contact with particles shift phenomenon.
Blade: Blade not properly gracefully compressive deformation, serrated blunt out no grinding, yaw rate deviation, number of teeth inappropriate choice of saw blade strength is not correct, choose the wrong blade, saw poor quality
Cutting machine: Jig Saw a state filled with incorrect number of revolutions does not correct cutting speed and blade with  concrete cutting blade cutting oil selection cutting machine error may be due to influence each other. There are customer complaints cutting results skewed to the site via our observations, feeding rack not fixed in the factory personnel transport material, often crooked off accidentally collide. Workpiece feeding rack crooked off after, of course, cut out of the material must be crooked. Customer complaints are also often broken saw blade can not be solved, we got to the scene found the book of mechanical design has been pointed out that the longer the cutting material, must have been cut by Taiwan to make the segments are not shaking. However, the customer still and chopped material as well, so the blade will have to be cut by shaking timber crashed. There is also the customer's machine is not in the installed horizontally correction, so the machine was fundamentally crooked.
Using fake machine: Because most of the cost of the machine in the mechanical materials, machine parts cheap that the use of cheap, of course, there is no guarantee of quality. Therefore, there may be insufficient because of mechanical stability undue impact or shaking.
Manual machine (operator): Since the diamond cutting tools  machine is manually operated manually, sometimes the operator under the knife under the knife too hard or too fast, it may cause blade breakage. Blade when used to note the following, otherwise there may have more problems: 1) determine the cut material must have a good fixed. 2) is cut according to the material to set the cutting conditions. 3) filled with saw, must be part of the jig clean out debris, and then pay attention to the direction of rotation, the blade properly fixed. 4) at the start and stop cutting cutting, do not feed too fast. (May cause broken teeth and damaged) 5) full use of cutting oil (I hope with the work material selection cutting oil) 6) Disposable circular saw blade circular saw blade cutting machines and cutting machines generally different, we must choose the correct blade . Can not be mixed, unless the purchase dual-use models.

How to improve the life of the blade

Familiar with the blade as people know that it is a tool used for cutting metal, but because it is consumable, it will be Plate Compactor  great demand for regular use. But we can correct use and proper maintenance to prolong the life of the blade, you can also experience some of the actual operation to achieve the purpose of extending blade life.First, pay attention to use the new blade running, you can not underestimate this step, as we buy a new car, like break-in period is a large degree of success will affect the future life of the blade is true, running on future Life is very large, a full run of the saw blade life can additionally increased by 30% -50%, can also be used according to the shape of sawdust, appropriately adjust tamping rammer  the blade cutting speed. Also according to the material of the workpiece to determine the cutting blade of the brand, and the material must be appropriate to adjust the feed rate. Choosing the right blade can get the desired effect prolong life, while regular maintenance blade is best to use anti-wear hydraulic oil, regular replacement of high-quality cutting fluid to reduce friction saw blade teeth and the workpiece. Even if it is the highest top Kanefusa blade also need some run-in period, in order to improve its service life ah!How to extend the life of saw blade for this topic, in fact, cutting equipment is crucial, a good cutting equipment can not only get the desired effect, and also will be  tile cutting blades virtually blade protection. Because a good cutting equipment is often desirable stiffness, no slight vibration at work, so have to choose the high quality cutting equipment is a prerequisite to improve blade life, coupled with the correct operation of the cutting operation the master device to make its greatest blade energy.

diamond grinding wheels made of

diamond cutter is made of diamond saws
The diamond tool machining brittle materials There are a variety of diamond saws and diamond grinding wheel, despite the application of various tools and processing characteristics are different, but the wear mechanisms are roughly the same, diamond grade, content, particle size, binder and diamond shape matching and tools related factors with the  diamond discs tool itself is an important factor affecting tool wear.
Typically diamond content, low power consumption is also low; however diamond content is too low, the macro may be exacerbated by fragmentation, resulting in a lack of blade height, so that power consumption actually increased; diamond content is high, the power consumption increases, leading diamond shedding tool-resistant grindability decreased. If the diamond grade higher in the case of lower levels, and its crystal structure was still intact higher nodal high abrasion resistance, low power consumption, but the diamond grade should be selected to match with the binding agent. Wu Jian and other analysis of diamond quality dispersion of the impact of the sawing process, pointing out that the wear resistance of diamond quality is good, must require binding agent also has good wear resistance, the only way to give full play to the role of high-quality diamond. While the low-quality diamond, due  9 inch saw blade to its compressive strength and impact resistance are poor, even easier cutting also occurs when the mineral composition of obvious wear and broken, especially difficult in the face of the cutting portion, generally occurs macro broken cutting ability and lose, then the wear resistance of the binding agent is required to be relatively low, in order to ensure there is enough of the diamond blade height. At the same time, should try to reduce the hole saw blades  quality of the diamond dispersion. By analyzing vitrified diamond grinding wheel spindle machining Sapphire deformation process (grinding required by deformation indicates normal load changes) and found that it becomes a periodic change, indicating wheel with self sharpness because vitrified grinding wheels wear of the material is brittle fracture binding agent, which will quickly a new abrasive grains. The metal and resin bonded grinding wheel wear is mainly friction and wear and abrasion. YCFu grinding wheel is given such an optimization model, through this model, according to the processing requirements and parameters to optimize grinding wheel (including grain size, concentration, stretched out rate and effective abrasive space), but also according to wheel optimization of grinding parameters and processing requirements (including grinding depth, wheel speed and workpiece feed rate). In addition there are many scholars have conducted a research in this area.

circular saw blade dynamic

Dynamic operation stability of the circular saw blade is a blade in the cutting processing, maintaining its inherent shape and stiffness properties. Job stability than the saw blade and the industrial saw blades  frame band saws poor, mainly because of large blade diameter to thickness ratio, and only the clamping disc holding the spindle rotates at high speed can not be tensioned. Part of the body alone saw serrated metal binding force, it maintains a certain rigidity. When the blade rotates at high speed, the centrifugal force, the saw tooth edge portion of the body begins to relax, in addition, timber sawing, the saw tooth edge portion of the body temperature rise sharply, volume expansion, and the blade but also by material constraints can not be arbitrarily scalable, large internal deformation occurring outside the small, on both sides of the blade to swim, was "hunting" state, causing rough sawn wood surface waves.
First, the centrifugal force
Rotating blade, the saw body parts of the material are subject to the centrifugal force.
Second, the impact of cutting heat and displacement caused by temperature gradients
Saw cutting work, saw tooth edge portion of the body temperature is higher than the temperature of the rest of the blade on the outside there is a high internal temperature low, according to Mote, Szymani other scientists' research results, for the 1mm thick blade, When the blade in the floor polisher pads  radial direction of the temperature difference reaches 9 ℃, the blade wavy deformation occurs. Also exacerbated instability in the blade work.
Third, the circular saw cutting runout and lateral vibration on Processing Quality
Cutting circular saw blades, due to the number of teeth and more, chip thickness of only hundredths of a millimeter. So rather small radial deviation will be on chip thickness have a great impact, in addition to radial runout effects, the lateral vibration of the processing quality, especially surface roughness has a great influence.
Four, vibration analysis
Vibration of the saw blade is in its equilibrium position the blade reciprocating lateral movement. Vibration caused by external interference, and always behave as some kind of "class." Vibration of the blade during cutting can not be compensated, the vibration will increase sawing path loss, reduced cutting accuracy, increase the noise level and shorten tool life.
Fifth, the concept of stability
Saw work there is always a certain vibration, but not necessarily instability. The critical instability conditions, even if a frequency is zero or very small lateral forces can cause very large lateral displacement of the blade. Instability saw blade vibration theory is the  sanding discs study of the most important fields.
Six, critical speed theory
Theoretical critical speed is determined by Lapin and Dugdale introduced into the study of circular saw blades, before this theory is mainly used in the design of turbine research.
Seven, plane stress
The initial blade manufacturing residual stress include stress, suitable for tensile stress. Rotary cutting blade, will turn with stress, thermal stress and the stress caused by cutting force. All of these stresses can be considered as plane stress.
1, suitable for tensile stress
2, the rotary stress
3, thermal stress
4, the cutting stress
Eight, to improve the dynamic stability of a blade
1, suitable for sheets
2, saw themselves slotted
3, the guide
4, the thermal stress control

the proper use of

Cutting speed is too large, machine vibration, voice large, reduce the stability of the blade, the processing quality decreased, the cutting speed is too small, the production efficiency is lowered. The same feed rate, cutting the amount of increase per tooth, affecting the processing quality and life of the saw blade. Because blade diameter D and the spindle speed N is a power function, in practice, a reasonable increase speed and reduce the saw blade diameter is most economical.
3, quality bid:
As the saying goes: "not good goods cheaper, better router bits  goods are not cheap", on the other commodities that may true, but I am afraid that the tool tool is not at all clear; key is to match. On the job site of many factors: cutting objects such as equipment, quality requirements, quality of personnel and so on. Comprehensive assessment, sensible manner, the best use, just right, in order to save money, reduce costs, participation in the competition in the industry. This depends on the mastery of professional knowledge and understanding of information of similar products.
Second, the proper use of:
In order to play its best performance blade must be strictly in accordance with the standard use;
1, blades of different sizes and  wet granite pads uses, the design of the head and the base form angles differ by their corresponding possible occasions;
2, the device spindle and plywood size and shape and position accuracy effects have a significant impact on the use, installation and adjustment to be checked before the blade. Especially for plywood blade contact surface with the impact caused by the clamping force to slip displacement factors must be excluded;
3, pay attention to the work of the blade, an exception occurs, such as vibration, my voice, machined surface material moving situation, you must promptly stop adjustment, and timely grinding, maintaining peak interest;
4, grinding blade must not change its original angle, to avoid sudden thermal quench local head, the  diamond bandsaw blades best professional grinding
5, temporarily without the saw blade to vertical hanging, avoid prolonged flat, the matter should not heap pressure on it, head office to be protected, not allowed to collide.

What are the current market and diamond tools

At present, China's use of abrasive machining, geology drill and stone cutting tools manufacturing technology level has been greatly improved, the product has formed, standardization, variety specification is complete, stable product quality, some products in the  diamond blade saws international market certain competitiveness. All kinds of diamond tools also been widely used in various industries, and achieved significant economic benefits, but on the whole diamond tools industry, still need to improve the industrial planning, broaden application areas, creating an international brand.
1 Industry Planning: strengthen macro-control management
Because the blind development, hardware and tools, especially diamond tools production layout appears scattered and  masonry saw blades  chaotic situation everywhere, generally small-scale producers, production is not centralized, process technology, the lack of market competitiveness, product quality tools sales market instability, competition disorder, price confusion, economic efficiency is not high.
(2) Product Development: Widening the application areas of diamond
The current domestic production tools as well as new product development, technology research and other aspects of insufficient capital investment, to increase tool industry investment, pay close attention to new product development and new technologies, promotion of new technology and continue to broaden the field of application of diamond to enhance diamond tools industry overall technological level and market competitiveness, variety, quality of survival, to scientific and technological progress and development.
Tools to meet the needs of the diamond core drills  market at home and abroad, we must accelerate the development of new products, improve product quality, increase product variety and improve production. In recent years, machinery, gems, medical equipment, wood, glass, steel, stone handicrafts, ceramics and composites processing of non-metallic brittle materials the field of diamond tools demand increases every year, at present, these products are domestic or imported, must as soon as possible developed a variety of high-quality range of tools to replace imports.
Currently urgent need to develop products: oil drilling PDC bits, stone polishing with diamond grinding blocks, core bits, diamond honing stone, diamond film coating tools, diamond wheel, rubber plastic-bonded diamond tools, PCD diamond tools, diamond needle, nozzle, diamond heat sink and transistors and other products. To ensure the quality of their products, we must accelerate new technologies, promotion of new technology, such as vacuum welding technology, spark sintering technology, uniform technology of diamond, diamond-plated iridium technology and metal bonding technology, laser welding technology.
3 development of the industry: joint build international brands
Enterprise, innovation is advanced technology, and constantly improve the production process, reduce production costs and improve economic efficiency. Take the group or joint venture on the road, the formation of several large enterprise groups, to guide development of the industry, to create their own brand, and actively participate in international competition. Relying on technological progress, increase scientific and technological input, update equipment, pay close attention to new technologies, new processes, new product research and promotion, to improve tool substrate material usage, accelerate the development of China's hardware tools industry to further enhance economic efficiency and overall level of technology.