2013年12月30日星期一

Detection of diamond grinding wheel performance

Diamond grinding wheel used more widely, it is how prospects like it, let Xiaobian together to explore with you the next issue it. Diamond wheel is grinding carbide, glass, ceramics, gems high brittle material effects tools. In recent years, with the rapid development of high-speed grinding ultra-precision grinding technology, put a higher demand on the wheel, ceramic resin bonded grinding wheel can not meet production sds hammer drill bits  needs, metal bonded grinding wheel because the combination of high strength, good formability, Notable features long life and production has been widely used. Metal-bonded diamond grinding wheel manufacturer in different ways according to the main sintering, plating two types. In order to give full play to the role of super abrasive abroad since the early 1990s, beginning with high temperature brazing process to develop a new wheel, namely single-temperature brazing superabrasive grinding wheels, grinding wheels currently still in the research and development of this stage.
Detection method using DHM-3 test machine, you can use the following two methods to achieve the detection performance of the diamond grinding wheel:
By detecting the consumption of the test piece and the grinding wheel, the wear of both the calculated ratio reflects the diamond polishing tools  performance of the grinding wheel. The steps are:
 ① were weighed and the weight of the wheel test block Gl, G2, and then the wheel and test block mounted on the DHM-3.
  ② Set consumption test block, before grinding to L1, after grinding to L2.
 ③ wheel set line speed test block wobble.
 After the touch screen said data set to open the equipment operation; ground when the test piece is set to a minimum when L2, DHM-3 automatically stops running and the running time of the record process. At this point, remove the wheel and test block, and then were called whichever weight G1 ', c2', wear ratio calculation.
Through attrition ratio reflects the grinding wheel performance. Wear ratio is smaller, more wearable wheel. Running time core bits for concrete  mainly reflects the sharpness wheel, when asked to run shorter, indicating wheel more sharp.
When asked by detecting running performance reflects the diamond wheel grinding wheel. Through experimental study, we found that the more appropriate square enamel Taiwan prosecutors guillotine ceramic diamond grinding wheel and grinding wheel performance ceramic CRN, because these two resin diamond grinding wheel to abrasion than much consumption can therefore be ignored wheel ship

2013年12月29日星期日

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

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

2013年12月24日星期二

How to avoid the cutting process burns

The question now is how to avoid burns during cutting , the low cutting efficiency.
The first is whether the choice of wheel hardness is too high or too bottom , should burn microstructure appears too high , can not accurately test the organizational structure of material errors. Should the hardness appears over the bottom end of the cutting efficiency , waste cutting disc . How can the cutting process does not burn and sharp, the diamond blades  hardness of the material needs to be used correctly detected , and the cooling fluid.
 Followed by the selection of cutting slices of raw materials , alumina material of choice for cutting metal materials , cutting non-ferrous metals and non-metallic materials of choice for silicon carbide material. Because the cutting metal material with no chemical reaction with the metal alumina material chemical composition, facilitates the cut . Non-metallic and non-ferrous metal chemical activity of small, silicon carbide material itself chemically active than the alumina , better cutting performance , small burns , wear and small .
 Once again, the particle size , particle size selection in favor of a moderate cut . If the request should use dry cut blades  sharp coarse granularity. If you require high precision cutting , partial fine granularity should be used abrasive .
 In short , the problem of the cutting process in metallurgical samples to the hardness of the material before and determined in the selection of cut pieces . In the selection of the targeted cut sheet material. Unlike ordinary metallurgical cutting metal cutting , common metal not require more than you can burn off just durable resin grinding wheel cutting disc quality analysis resin grinding wheel cutting disc with ceramic small wheel , super oil stone , plated grinding wheels, abrasive resin ( superhard and Cape mill ) products, suitable for business investment , marketing is not difficult , most can be said cottage , less investment , less employment , small footprint, simple process , which produces high- quality products with stable quality there are some difficulties, only regular visits to customers , invested research and development of new products , a lot to learn advanced technology to the workshop to develop into a real business.
    ( 1 ) Abrasive material: Common abrasive cutting wheels have cut brown jade (A), white fused alumina (wA), black corundum (BA), silicon carbide (c) , the most commonly used is corundum, corundum hardness because high , high toughness and shape , applicability and low price compared to other abrasive characteristics . Corundum their reduction in the adequacy of primary smelting and secondary sand sand , mainly in the chemical composition : Al2O3 content level sands ≥ 94.5; Al2O3 content of 94.5% of secondary sand ; generally around 85% and Fe2O3 content of 4-5% ; therefore stone polishing pads  lower than the hardness of the secondary level sand sand , but the price is also low ; corundum for a variety of carbon and alloy steel processing in general ; higher than white fused corundum hardness, brittleness large , grinding heat is small, because the price is high , the thermal deformation of the workpiece requires hours , and it also has a special material is used as an abrasive mix processing ; Al2O3 corundum content in the 70 ~ 85%, Fe203 content of 7-9 %. low hardness , cutting forces poor, but the price is cheap ; tall black silicon carbide hardness and brittleness good , sharp cutting edge , good self-sharpening properties, good thermal conductivity, have an advantage in terms of processing non-ferrous metals , plastics , rubber and cast iron .
 2 ) Abrasive Grit: Common particle size : 22 # -80 # , fine granularity low cutting efficiency.
 3 ) Wheel hardness: Hardness used : P, Q, R; N, S; hard wheel generally used to reduce grinding wheel wear. The hardness number of the binding agent , the density of the molding , sintering temperature and sintering time were controlled .
 ( 4 ) binders:
 ( 5 ) Organizations: cutting wheels should be slightly larger number of organizations to improve cutting efficiency : too much strength and influence , often organized No. 3 to 7 . Forming firing ( also called hardening ) the impact of technology on the cutting performance :
 ( 1 ) Molding are: hot , cold, rolled three methods. Thermoforming method required little pressure. Cutting sheet molding density, high hardness , strength ; multi-purpose hot pressing in northern China ; advantage of cold pressing method is that when the heat source is not required for grinding various binding agents ; multi-purpose cold southern China Law ; rolling law required energy is small, small molding density, low efficiency , are less common . Generally without enhanced network has thin wheel and export resin piece wheel with Bo .

2013年12月23日星期一

Sandpaper in subsistence use of all sizes are too hearty

Sandpaper dipped in water or soapy water and water can be polished during operation can reduce the wear scar, creamy ahead of the coating, and thrifty servant material is not difficult. But  the mill should be lower face painting and coating ability to wait underlying paint layer after complete dry mill, otherwise it is easy to paint  stone drill bits white, absorbent substrates without some initiative mill, in order to protect the disc with sandpaper quality of work, before grinding to polishing tools should be tested.
 Sandpaper in subsistence use of all sizes are too hearty, whether it is plastic industry, metal industry, construction industry or the automotive industry are operating very widespread. Request for the operation of various industries in each sandpaper does not vary, some  characteristics comply with grinding tools, and some sandpaper to comply with  tile cutting blades the shape, material characteristics, such as differences optional sandpaper. It is also a sandpaper disc sand in one species, but the sand is due to the preparation of the disc appearance and operation of divergent samples, so just give it name from scratch, with the addition of a sandpaper is also referred to.
 Sand may be divided into two types of discs, and the non-porous perforated disc sandpaper sandpaper disc, a perforated disc sand to facilitate the discharge of waste in the grinding object debris carbide drill bits  from the hole, advance grinding efficiency. If the disc sand sticking to the speed change master disc, the special operating machinery or hand, using sandpaper polished, mostly for hard and brittle paint kind of grinding, end compared with convenient operation, but disc sand in operation The process will produce a lot of dust, affecting the health scene, which is dominated disc sand to prevent a fragmentation weaknesses problems.

2013年12月22日星期日

Ultra-thin cutting wheels grinding characteristics and Precautions

Ultra-thin cutting wheel is mainly used for fine grooves and cut close , generally use deep creep feed grinding method. With grinding depth, feed small speed, large contact area of the grinding wheel and the workpiece , narrow kerf , metal removal rate, high grinding precision, good surface quality and material utilization characteristics. The  ore bits for concrete general rule is as follows : 1 ) the overall thickness of the thin -cut piece wheel ( mostly in 0.5mm or less ) , small diameter (20-100mm), fine granularity, high dimensional and geometric precision, light weight , general conditions in the high- speed next use . Average speed of 5000-40000 rpm. 2 ) . Cutting wheel base body mostly thick (0.5-2mm), diameter (100-200mm), coarse granularity , low accuracy , generally used for low speed large depth of cut conditions. Average speed of 3000-10000 rpm. 3 ) ultra-thin cutting wheel to use more fine-grained , and generally having a thickness thinner abrasive particle size accordingly thinning, good surface quality . However, the finer the particle size of the abrasive cutting sharpness drop corresponding to  diamond bandsaw blades the feed rate is reduced accordingly to adapt the particle size of the abrasive machinability 4 ) . Thin cutting wheel cutting depth generally by the user to set the cutting element , the cutting mostly using creep feed grinding process , the depth of a cut to the . As the cutting wheel so thin, poor cutting conditions ( more than 3 face contact with the workpiece ) , making it difficult to heat , and therefore to increase ( flow, pressure ) cooling the cutting area. 5 ) When the cutting wheel at the user has just appeared on the machine does not move or cut the workpiece chipping , the proposal to increase the cutting speed or decrease feed rate ; When the cut after a period of time does not move or chipping , it is recommended to use Whetstone appropriate granularity on the surface of the blade wheel to adjust its sharpness . 6 ) . Workpiece surface quality and cutting and thin cutting wheel performance is mainly related to abrasive particle size , particle size finer surface finish  masonry drill bits processing the better . Simultaneously with the workpiece material , hardness, cutting consumption , machine condition , processing requirements and other factors are also related. General before 7 ) thin cutting wheel and the factory has been shaping the blade , users can directly use . If you need further surgery, recommended green silicon carbide or corundum white stone, grain size selected coarse granularity than the cutting wheel , No. 1-2 ; If the user needs to further open the blade edge , or use some suggested green silicon carbide or corundum white Whetstone , particle size selected fine grain size than the cutting wheel or 1-2 numbers to the same number . 8 ) Cutting general but also with the material to be processed , hardness, precision machining requirements related to initial use is recommended to use the best in the user's original condition , do not easily change cutting parameters . 9 ) user conditions also affect major factor cutting performance , especially in machine tool spindle axial vibration , runout, parallelism directly affects the flanges , etc. cutting wheel balancing precision cutting accuracy.

2013年12月19日星期四

Suggestions to improve the safety of diamond saw blades

Industrial production, there is a certain risk when using a diamond saw blade tool for the protection of life and attention, its security more and more manufacturers and users attention.
2.1 The new EN13236 standard
On the development of a set of safety standards EN13236 safety performance for superhard materials, tools, and we firmly based on years of product safety awareness and stringent safety  metal grinding wheel testing system security diamond saw 2.2 - 2.2.1 recipe optimization improvements through the use of low- the oxygen content of the raw material powder, diameter 200 mm tiles Steel Institute tablets (1.6 mm thick blade, blade height 7 mm) mass pull teeth strength 15 ~ 20N · m, fully meet the EN13236 standard (12.5N · m), stable sales to the European market. 2.2.2 Process optimization - laser welding
The traditional high-frequency welding, bonding strength of the weld (especially at high temperatures) is not high enough, head injuries and other accidents sawing fly collapse-prone process, not the safety and reliability of the blade. The laser beam welding is used as the laser energy is focused, using the mechanism of penetration welding, the molten tip of the buffer layer and the substrate, to form a solid weld even under the blade, drill case without cooling water, and ensures a high weld strength, to ensure the safety of use. Our company truly the heart of the glass  4 inch circular saw blade  rod cutting machine is your company's diamond saw, now dull, and for the price not lower blade, in order to save costs, would like to ask you, what materials grindstone can be re-used to the blade the blade?
Received such a problem, a little depressed, diamond saw blades are generally toothless,
The hardness of diamond is very high (ranked first), so nothing can be worn almost touch it, you can only use a diamond grinding wheel grind slowly, but it is difficult to grind, like the original sharp edge. Encountered such conditions, usually for blade.
Saw the matrix, the matrix of diamond saw blades, alloy saw blade matrix and packaging business, the company is equipped with the stress detector, stress straightening machine, grinding tools, hardness tester, shearing, leveling machines, hydraulic machines, presses, CNC lathes, flat round grinder, and other professional production equipment  hole saw blades and testing equipment. In order to improve enterprise management level, stable blade, saw the matrix, the matrix of diamond saw blades, blade alloy matrix product quality, continue to meet customer demands and expectations, the company strictly regulate the quality and management requirements.

2013年12月15日星期日

The main analysis of cutting stainless steel blade introduces the use of materials

Stainless steel ( pipes, profiles , etc. ) , although difficult for processing materials , but its characteristics are not very hard, mainly stainless steel strong adhesion , chip easily adhere to the serrated blade , the cutting conditions worsen , accelerate the blade dulls speed , and therefore difficult for processing classified material . Processing of  metal grinding wheel stainless steel special saw blade, using a standard high-speed home country tungsten and molybdenum alloy steel production, especially for stainless steel milling. Also can be used with ordinary steel , aluminum, copper , plastic and other cutting , milling , slotting .
 Special stainless steel cutting blade materials used
Tungsten and molybdenum high speed steel, cobalt- tungsten-molybdenum alloy steel high speed (HSS-DMO5, HSS-C05)
Special stainless steel cutting blade stock specifications :
Material : HSS-DM05 / HSS-Co bore diameter * thickness * Unit : MM
Plus multi-piece welded carbide saw blade on  carbide drill bits the saw blade matrix , collectively scraper. General since the beginning of the scraper blade outer scraper blade and teeth , the cutting blade is generally used for hardwood , wet outside scraper generally used for cutting wood , tooth scraper used for trimming or edge blade , but can not be generalized . Rui Shi to multi-chip saw blade , for example, the general design of the blade 10 inches below the number of 2-4 , in order to allow the blade play the biggest role , mostly designed for outer blade , 12- inch blade design and the number of 4-8 inner and outer blade scraper each half , symmetrical design . Multi-chip saw blade with scraper is a trend of foreign companies before the invention of the earlier multi-chip saw blade with a blade . When cutting wet wood diamond hole saw  and hardwood , in order to achieve better cutting effect , reducing tooth paste blade burning piece of machinery to increase chip capacity, reduce the number of grinding and increase durability. However , multi-chip saw blade with a blade grinding difficult , generally can not be grinding equipment , the price is also relatively high .

2013年12月12日星期四

About the multi-chip saw blade aperture , tooth and coating

Multi-chip saw blade aperture
Multi-chip saw blade aperture of course, first look at the requirements of the machine , because it is a multi-chip installed together , in order to ensure stability, the general design of the aperture is larger than conventional blade aperture , the aperture while the Concrete saw blades  majority of the increase , plus a special method of installation Flanges and keyway design to facilitate adding coolant , but also increase stability. General 110-200MM blade aperture between the outer diameter of 35-40 ,230-300MM blade aperture between the outer diameter of 40-70, 300MM over the blade is generally less than 50MM.
Multi-chip saw blade tooth
Multi-chip saw blade tooth is generally around the turn of the teeth , but a few small diameter blades are also designed to be flat teeth .
 Multi-chip saw blade coating
After the multi-chip saw blade welding grinding is completed, usually coating treatment , reportedly can extend life, it is mainly for blade looks beautiful, especially in multi-chip saw blade with scraper, welding current level , scraper Department has very obvious traces of welding , so before coating treatment , in order to maintain appearance. Plus multi-piece welded carbide saw blade on the saw blade matrix , collectively scraper. General core bits for concrete  since the beginning of the scraper blade outer scraper blade and teeth , the cutting blade is generally used for hardwood , wet outside scraper generally used for cutting wood , tooth scraper used for trimming or edge blade , but can not be generalized . Rui Shi to multi-chip saw blade , for example, the general design of the blade 10 inches below the number of 2-4 , in order to allow the blade play the biggest role , mostly designed for outer blade , 12- inch blade design and the number of 4-8 inner and outer blade scraper each half , symmetrical design . Multi-chip saw blade with scraper is a  4 inch saw blades trend of foreign companies before the invention of the earlier multi-chip saw blade with a blade . When cutting wet wood and hardwood , in order to achieve better cutting effect , reducing tooth paste blade burning piece of machinery to increase chip capacity, reduce the number of grinding and increase durability. However , multi-chip saw blade with a blade grinding difficult , generally can not be grinding equipment , the price is also relatively high .

2013年12月9日星期一

Diamond File mainly suitable for carbide

Diamond pen is a new wheel dressing tool, using powder metallurgy hot pressing process, the matrix alloy wear resistance, high strength, diamond alloy matrix is ​​firmly embedded, not falling, the diamond particles are arranged according to certain requirements in the alloy matrix, easy to use and do not need tough grind and back ...
2 diamond grinding wheel / diamond wheel cutter
Company specializing in the  concrete saw blades production of ceramics, resin, metal is bonded diamond or CBN grinding wheel, mainly used for carbide tools, ceramic materials, magnetic materials, PCD, PCBN cutting tools, funnels and grinding of ferrous and nonferrous metals processing . And according to customer ...
3 natural diamond dresser
Natural diamond dresser multi natural diamond particles sintered regularly arranged in the alloy matrix, and fixed to the cutter body. For fine grinding wheel dressing is an economical, practical and novel wheel dressing tool. It has the shape of round, square, etc., do not use ...
4 Diamond grinding / grinding
Electroplated diamond and CBN electroplated diamond and CBN grinding grinding for carbide, high carbon steel, bearing  circular blades steel miniature bearings, tools, and other precision parts machining holes of various shapes and a variety of special-shaped cavity molding grinding. And jade carving pondering other working ...
5 Diamond File
Diamond File mainly suitable for carbide, hardened steel trimming, cutting and filing and repair mode, also applies to the noble cutting and filing non-metallic materials, such as: silicon, crystal and other materials ......
6 diamond indenter
Diamond indenter are made of high-quality masonry drill bits  natural diamond processing, is a key fitting a variety of hardness. The company produces pressure head varieties, specifications, high precision, and long life, beautifully packaged.

2013年12月8日星期日

conical wheel gear: wheel trimmed axial section of a toothed rack

 1 disc grinding machine: two twisted dish rack wheel is equivalent to two narrow tooth surface, the workpiece through the rounded plate and strip for the exhibition into activities, tasks Taiwan along the axial direction as to the workpiece his activities to grind the masonry blades   entire tooth width. Each finished grinding a tooth after the dividing head frame after dividing plate of teeth. This tool can also be applied additional installation grinding bevel. If using a grinding wheel into the internal gear, internal gear grinding can. This machine is a horizontal structure of ordinary, when machining diameters greater than 1 m vertical structure with an accuracy of up to four, together for grinding precision gears.
2 conical wheel gear: wheel trimmed axial section of a toothed rack, and a straight line along the tooth to come and activities. Workpiece through the worm gear, screw and communication gear and developed into a complete indexing activities, but also effective rounded plate and strip for developed into activity, the application of worm or indexing plate for indexing activities. Wheel rack rotated by an angle helix angle of  dry cut blades the workpiece when grinding helical gear. This machine adjustment convenience, versatility, and fit for single batch production, wider use.
3 worm wheel gear: truth and hobbing similar, large-diameter wheel as a single head worm shape, of a turn each wheel, the workpiece is rotated one tooth, and its transmission ratio accurately, some with mechanical transmission, some with synchronous motor idea identify drivers, some with raster and servo motor. For grinding the workpiece axially feeding activities in order to grind the entire tooth surface. Diamond tools for grinding wheel turning or rolling roll into worm-shaped. Machine tools for the vertical structure, the continuation of indexing, high grinding efficiency, co-processed for batch production medium modulus gear on gear teeth and more particularly  circular blades suitable, accuracy up to four.
4 large flat grinding machine: the wheel of a task plane is equivalent to a rack tooth surface, with involute master develop into activities occurred. Grinding wheel and the workpiece is not longing for the workpiece axis complex activities, grind the side of the tooth surface after the application of sub-dividing plate teeth (The company specializes in producing aluminum cutting machine), sequentially grind all tooth surfaces. Then turn around the workpiece, and then grind the other side of the tooth surface. Machine is a horizontal structure, simple structure, function the same, accuracy up to 3, first and foremost for grinding shaper cutters, shaving cutters and metering measuring gear.

2013年12月5日星期四

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 .

2013年12月3日星期二

Electroplated diamond and CBN tools

Electroplated diamond and CBN tools , brazed diamond and CBN tools, diamond and CBN grinding wheels , brazed carbide nibs tools, carbide burrs . The company has already passed ISO9001, ISO14001, ISO18000 certification. With excellent production technology and strict quality General purpose blade  control system, the products are widely used in machinery , glass, semiconductors , stone , and other areas of Kennedy , hard, brittle and difficult to machine materials. Enjoy a high reputation in the international market . Followed a " careful, novelty , what customers think " concept , as well as to meet the new requirements of the market continues to improve , and we are working to develop a variety used for cutting , grinding and polishing of new products. Welcome to the new and old customers and our company to work together Concrete saw blades  for common development !
Vitrified diamond wheel with precise rigidity, heat resistance, corrosion resistance , easy to plug fever , high grinding efficiency, easy dressing and so on. 0 ~ 1/8Λm using diamond abrasive grains bonded by low melting temperature heating to prevent graphitization of the diamond abrasive grains during sintering occurs , the success of a binding agent made ​​of porous ceramic diamond wheel . That , when the SiO2, Al2O3, B2O3, CaO , etc. appropriate weight ratio , and does not require a non- reducing atmosphere, inert grinding cup wheels  atmosphere during sintering , and can be sintered at a low temperature in the atmosphere 720 ℃ , the diamond abrasive grains may oxidation .
Precision metal bond diamond wheels with high hardness, abrasive and good holding power . Adding aluminum binders of different elements , studied the optimal sintering temperature aluminum bonded grinding wheel , and found that adhesion Al2Sn2Ti2Ni2Co bonded diamond grinding wheel grit and a strong bond . Made by vacuum sintering method Ni2Cu and Ni2Cu2Sn bond diamond wheel and studied mechanical properties and surface state binding agent.

2013年12月1日星期日

vitrified diamond and CBN grinding wheel slotting process

1 Overview
  Evolving cutting tool materials, from high-speed steel, tungsten, ceramic metal oxide ceramic micro-particles until tungsten. At the same time, the geometry of the tools of new materials, structures, and even change the shape aspect is also changing, led the development of grinding technology, the ceramic tile saw  emergence of new tools for grinding and finishing techniques, as well as a new way of binding agents. This grinding equipment accordingly requests, high power, high material removal rate become a trend, and on this basis is in the processing of higher requirements can also achieve the same machine trimmed.
 On the economic assessment of the grinding process will involve the machine costs, labor costs, management fees and tool costs. Among them, labor hours and machine costs account for as much as 80 percent, which determines the need to improve the economy, the need from the  diamond hole saw following two aspects: 1) high material removal rate, that improve grinding efficiency; 2) to reduce non-grinding time . Enhance the material removal rate by increasing the feed rate and feed rate to achieve every time, and in order to reduce the non-grinding time, consider reducing the frequency of wheel replacement time, as well as aid in the machine grinder trimmed to achieve their goals.
  Recently, has emerged to replace the usual use of resin bond diamond and CBN grinding wheels ideal alternative - vitrified diamond and CBN grinding wheels, grinding its superiority in terms of these two aspects is built in to improve the economy of the above, especially in terms of processing slotted, more fully reflects its advantages.
2 Vitrified diamond or CBN grinding wheel grooving state
  It is undeniable that, because of its strong grinding force and high material removal rate, softer resin bond diamond or CBN grinding wheel in the current machining carbide or high speed steel cutting tools are still to be widely used. However, an increasing awareness of the tool manufacturer, resin bonded grinding wheel there is a lower than poor shape retention and drawbacks, which makes the high cost of machining groove, especially the use of shape processing 14F1 When circular groove, this phenomenon is more serious.
 The vitrified diamond or CBN grinding wheel is able to overcome this shortcoming, it is not only easy to repair, maintain good, but also help to control the chip and the heat of formation of pores, with a strong grinding force.
Usually installed in each wheel, radial and  General purpose blade axial runout will appear, as well as dynamic imbalance and other issues in the use of ceramic binder will encounter, so do not be handling and interior trim will contribute directly to the machine significantly Improved accuracy of the wheel.
3 Vitrified diamond or CBN grinding wheel grooving to use examples
 Grinding parameters:
 Margin ae = 3,5 mm; feed speed vf highest 150mm/min; cutting speed vc = 12-44m / s.
 Trimming parameters:
Wheel feed rate vcd = 18m / s; wheel and wheel speed ratio when dressing qd = 0.7; Feed aed = 3μm.
4 trim system
 Single piece of diamond or CBN grinding wheel vitrified high cost, which is only valid ground floor just a few millimeters, is calculated to be trimmed if added, soon ran out, the amount actually used in the grinding of a workpiece Only 5-10% of the grinding wheel layer, the rest is actually out of the repair. Therefore, the correct way of dressing is very important.