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
grinding cup wheels
2014年2月12日星期三
2014年1月5日星期日
Comparison with amorphous diamond CVD diamond grinding wheel
( 1 ) the difference between the amorphous diamond CVD diamond grinding wheel
Amorphous diamond ( also called diamond-like carbon - Annotation ) is to adopt a carbon PVD coating deposition process . It has part of the diamond , but also has a part of SP2 carbon bond ; its high film hardness, but lower than the hardness of diamond films ; their concrete polishing pads thickness than we usually deposited diamond film to be thinner . When machining graphite, amorphous diamond grinding tool life is 2-3 times uncoated carbide tools . Consistent contrast , CVD diamond deposition process is the use of pure CVD diamond wheel , tool life when machining graphite is 12-20 times carbide cutting tools , which can reduce the number of tool changes diamond polishing tools to improve the reliability and precision machining sex .
( 2 ) diamond wheel life varies
Like any other tool , diamond grinding tool life also varies , depending on the material to be cut , the choice of feed rate and cutting speed , as well as the geometry of the workpiece and the like. In general , processing of graphite diamond wheel tool life is 10-20 times uncoated carbide tools and may even longer in some cases . Thus , a tool can be done with almost any processing tasks without tool change due to tool wear and concrete ring saw avoid the processing of the interrupt and recalibration , making it possible to achieve unattended processing. In the processing of composite materials , it is entirely possible to get a longer tool life. When it was reported in the processing of high-density glass fiber, carbon fiber composite materials difficult to machine , diamond grinding tool life up to 70 times is not coated carbide tools .
Amorphous diamond ( also called diamond-like carbon - Annotation ) is to adopt a carbon PVD coating deposition process . It has part of the diamond , but also has a part of SP2 carbon bond ; its high film hardness, but lower than the hardness of diamond films ; their concrete polishing pads thickness than we usually deposited diamond film to be thinner . When machining graphite, amorphous diamond grinding tool life is 2-3 times uncoated carbide tools . Consistent contrast , CVD diamond deposition process is the use of pure CVD diamond wheel , tool life when machining graphite is 12-20 times carbide cutting tools , which can reduce the number of tool changes diamond polishing tools to improve the reliability and precision machining sex .
( 2 ) diamond wheel life varies
Like any other tool , diamond grinding tool life also varies , depending on the material to be cut , the choice of feed rate and cutting speed , as well as the geometry of the workpiece and the like. In general , processing of graphite diamond wheel tool life is 10-20 times uncoated carbide tools and may even longer in some cases . Thus , a tool can be done with almost any processing tasks without tool change due to tool wear and concrete ring saw avoid the processing of the interrupt and recalibration , making it possible to achieve unattended processing. In the processing of composite materials , it is entirely possible to get a longer tool life. When it was reported in the processing of high-density glass fiber, carbon fiber composite materials difficult to machine , diamond grinding tool life up to 70 times is not coated carbide tools .
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.
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11月20日星期三
Ultra-thin diamond grinding wheel series use
Thin diamond grinding wheel diamond grinding wheel is used on the basis of common technology, then after selection through the use of diamond powder metal contact made of ways . A variety of hard concrete core bits and brittle so it can cut grooving data , such as : a variety of silicon , germanium , ferrite, glass , lithium niobate , gallium phosphide ( diamond wheel ) , lithium tantalate , phosphorus arsenic gallium , gallium arsenide , all kinds of ceramics. Which has high strength and ultra-thin diamond grinding wheel tolerance , high precision, ultra-thin and other features .
Ultra-thin diamond grinding wheel series is a fact that thin ring. Which will demand pick appropriate scale flange can use , through the use of edge wear after assuming full circle may have been destroyed after the blade , then it can be swapped into a smaller flange can be sustained by trimming after use can be described as very economical. Just simply use another fine grinding wheel flange, then we can get the best cut effect. So diamond blade saws the use of diamond grinding wheel conditions are what it ?
1 cut diamond grinding wheel speed is necessary more than 80 m / s ;
2 cut diamond grinding wheel normal speed ( to be cut speed ) based on the information and cut precision cut demand conclude , usually 0.5 to 200 mm / seconds ;
3 cut diamond grinding wheel when it is necessary to water cooling, cooling water flow rate is not less than 2.4 l / min ;
4 cut diamond grinding wheel grinding wheel thickness and depth of cut based on information determined . Maximum depth cbn wheels of 3 mm incision is usually within ;
5 new sand grinding wheel before use is necessary to open with a special marking plate edge marking .
6 films selected diamond grinding wheel , in order to ensure the best cut effect ( glass grinding wheel ) cut data based on different needs to select the appropriate grit size grinding wheel .
Ultra-thin diamond grinding wheel series is a fact that thin ring. Which will demand pick appropriate scale flange can use , through the use of edge wear after assuming full circle may have been destroyed after the blade , then it can be swapped into a smaller flange can be sustained by trimming after use can be described as very economical. Just simply use another fine grinding wheel flange, then we can get the best cut effect. So diamond blade saws the use of diamond grinding wheel conditions are what it ?
1 cut diamond grinding wheel speed is necessary more than 80 m / s ;
2 cut diamond grinding wheel normal speed ( to be cut speed ) based on the information and cut precision cut demand conclude , usually 0.5 to 200 mm / seconds ;
3 cut diamond grinding wheel when it is necessary to water cooling, cooling water flow rate is not less than 2.4 l / min ;
4 cut diamond grinding wheel grinding wheel thickness and depth of cut based on information determined . Maximum depth cbn wheels of 3 mm incision is usually within ;
5 new sand grinding wheel before use is necessary to open with a special marking plate edge marking .
6 films selected diamond grinding wheel , in order to ensure the best cut effect ( glass grinding wheel ) cut data based on different needs to select the appropriate grit size grinding wheel .
2013年11月19日星期二
CBN grinding wheel dressing cycle is long
CBN abrasive hardness higher than normal , high hardness means more sharp
and cutting stronger ; CBN has a higher wear resistance, means that it is
harder than ordinary abrasive wear ; ability sds drill bit to maintain the shape of CBN
abrasive high-performance one of the main characteristics of the abrasive ;
CBN high compressive strength , which means that in the harsh conditions of
use it can remain intact and not broken particles ; CBN has good thermal
conductivity , the grinding can be achieved when cold cutting .
1, high hardness, high toughness CBN human hardness only to diamond synthesis
of superhard material is much higher than the normal corundum and silicon
carbide abrasive , and thus has a flap wheels better cutting ability , more sharp.
2 , high temperature resistance , good thermal stability .
3 , chemical inertness . 4 , good thermal conductivity . 5, the grinding
performance, good surface quality 6 , abrasion resistance and longer life.
CBN grinding wheel ratio up to 3500-5500 , a hundred times more than ordinary
high corundum grinding wheel , diamond grinding wheel 3-5 times higher than
that . 7 , environmental pollution, energy saving. Without too much powder
dust. 8 , high efficiency, good overall economic efficiency . Sharp grinding
, grinding force is small , CBN grinding wheel dressing cycle is long ,
finishing less the amount , the replacement for a long time ; long life
cycle, grinding ratio , getting a better economy, in use to maintain good
shape , without regular replacement wheel and wheel dressing , saving time ,
improving working conditions , is stone drill bits conducive to the machining operation .
Cubic boron nitride (CBN) is not suitable for grinding carbide and non-
metallic hard materials . In the grinding temperatures , CBN case of alkaline
aqueous chemical reaction occurs , CBN wheel at 300 ℃ alkaline solution will
be decomposed in boiling water to trace decomposition destroyed crystal
grains will result , so that when grinding only use oil-based coolant , not
water-based coolant.
and cutting stronger ; CBN has a higher wear resistance, means that it is
harder than ordinary abrasive wear ; ability sds drill bit to maintain the shape of CBN
abrasive high-performance one of the main characteristics of the abrasive ;
CBN high compressive strength , which means that in the harsh conditions of
use it can remain intact and not broken particles ; CBN has good thermal
conductivity , the grinding can be achieved when cold cutting .
1, high hardness, high toughness CBN human hardness only to diamond synthesis
of superhard material is much higher than the normal corundum and silicon
carbide abrasive , and thus has a flap wheels better cutting ability , more sharp.
2 , high temperature resistance , good thermal stability .
3 , chemical inertness . 4 , good thermal conductivity . 5, the grinding
performance, good surface quality 6 , abrasion resistance and longer life.
CBN grinding wheel ratio up to 3500-5500 , a hundred times more than ordinary
high corundum grinding wheel , diamond grinding wheel 3-5 times higher than
that . 7 , environmental pollution, energy saving. Without too much powder
dust. 8 , high efficiency, good overall economic efficiency . Sharp grinding
, grinding force is small , CBN grinding wheel dressing cycle is long ,
finishing less the amount , the replacement for a long time ; long life
cycle, grinding ratio , getting a better economy, in use to maintain good
shape , without regular replacement wheel and wheel dressing , saving time ,
improving working conditions , is stone drill bits conducive to the machining operation .
Cubic boron nitride (CBN) is not suitable for grinding carbide and non-
metallic hard materials . In the grinding temperatures , CBN case of alkaline
aqueous chemical reaction occurs , CBN wheel at 300 ℃ alkaline solution will
be decomposed in boiling water to trace decomposition destroyed crystal
grains will result , so that when grinding only use oil-based coolant , not
water-based coolant.
2013年11月15日星期五
The main mechanism of grinding wheel burns introduction
When the grinding wheel surface temperature , if the cooling measures is not good , it's easy on the workpiece surface ( from tens to hundreds of um um) occur secondary quenching and tempering . If the grinding wheel surface layer of the instant temperature exceeds steels AC1 point, the role of the secondary coolant quenched martensite , while concrete saw blades in the subsurface due to temperature gradients , short time , only the formation of high-temperature tempering organization This makes the surface and subsurface between the tensile stress and the surface of a thin brittle secondary hardening martensitic , when can not afford , it will crack.
Heat treatment of
A ) residual austenite retained austenite grinding wheel grinding wheel grinding wheel because heat and pressure generated changes occur at the same time may be accompanied by tempering and grinding wheel surface cracks. Amount of residual austenite should be controlled within 30% .
2 ) carbon concentration diffusion layer nitrided layer carbon concentration is too high, easy to form a nitrided layer tissue or excessive free mesh carbide carbide . Because this substance extremely hard , the wheel grinding process may lead to local overheating tendencies and incidence surface tempering . Nitrided layer carbon concentration is too high, the surface will produce excessive residual austenite. Resulting in burns and cracks. Therefore, the surface carbon concentration increases, reducing the performance of the grinding wheel , the general surface carbon concentration should be controlled within the range of 0.75% -0.95 % .
3 ) carbide distribution should be diamond core drills uniform carbide distribution and morphology , particle size not greater than the average diameter lμm; carbide morphology should be spherical , powdered or finely punctate distribution along the net , mesh or angular carbides are not allowed .
4 ) decarburization heat treatment . Surface or environmental cause improper surface oxidation , so that the workpiece will produce a thin carbon layer , this layer will cause decarburization soft wheel overload or overheating , resulting in surface tempering .
5 ) tempering the premise of ensuring the hardness , the tempering temperature is as high as possible a number , as long as some of the annealing time . This can improve the surface carburized hardened plastic , and the residual stresses are balanced or lower . Improving the abrasive tools distribution of surface stress . This can reduce the probability of cracks occur workpiece , thereby improving the efficiency of the grinding wheel grinds the workpiece .
6 ) deformation should minimize heat deformation . This reduces the grinding wheel margin. If the heat deformation is too large, if the operation is not in the workpiece grinding wheel radial runout maximum at the beginning of the grinding wheel , grinding wheel each time point at which the grinding wheel is removed margin would not be normal, resulting in burns and cracks.
Heat treatment of
A ) residual austenite retained austenite grinding wheel grinding wheel grinding wheel because heat and pressure generated changes occur at the same time may be accompanied by tempering and grinding wheel surface cracks. Amount of residual austenite should be controlled within 30% .
2 ) carbon concentration diffusion layer nitrided layer carbon concentration is too high, easy to form a nitrided layer tissue or excessive free mesh carbide carbide . Because this substance extremely hard , the wheel grinding process may lead to local overheating tendencies and incidence surface tempering . Nitrided layer carbon concentration is too high, the surface will produce excessive residual austenite. Resulting in burns and cracks. Therefore, the surface carbon concentration increases, reducing the performance of the grinding wheel , the general surface carbon concentration should be controlled within the range of 0.75% -0.95 % .
3 ) carbide distribution should be diamond core drills uniform carbide distribution and morphology , particle size not greater than the average diameter lμm; carbide morphology should be spherical , powdered or finely punctate distribution along the net , mesh or angular carbides are not allowed .
4 ) decarburization heat treatment . Surface or environmental cause improper surface oxidation , so that the workpiece will produce a thin carbon layer , this layer will cause decarburization soft wheel overload or overheating , resulting in surface tempering .
5 ) tempering the premise of ensuring the hardness , the tempering temperature is as high as possible a number , as long as some of the annealing time . This can improve the surface carburized hardened plastic , and the residual stresses are balanced or lower . Improving the abrasive tools distribution of surface stress . This can reduce the probability of cracks occur workpiece , thereby improving the efficiency of the grinding wheel grinds the workpiece .
6 ) deformation should minimize heat deformation . This reduces the grinding wheel margin. If the heat deformation is too large, if the operation is not in the workpiece grinding wheel radial runout maximum at the beginning of the grinding wheel , grinding wheel each time point at which the grinding wheel is removed margin would not be normal, resulting in burns and cracks.
2013年11月11日星期一
CVD diamond coating and the difference between the amorphous diamond coating
(1) CVD diamond coated with amorphous diamond coating difference
Amorphous diamond ( also called diamond-like carbon - Annotation ) coatings are deposited using a PVD process carbon . It has a key part of the diamond SP3 , SP2 also has some carbon bond ; their sds hammer drill bits film hardness is high, but lower than the hardness of diamond film ; thickness than we usually deposited diamond film to be thinner . Machining graphite , amorphous diamond coated tool life is uncoated carbide tools 2-3 times. In contrast , CVD diamond is deposited using CVD process pure diamond coating , machining graphite carbide cutting tool life is 12-20 times , thereby reducing the number of tool changes to improve the reliability and accuracy of processing consistency.
( 2 ) can not be hardened steel with diamond tooling
Diamond from carbon atoms. Certain materials when heated , sucked from the carbon atoms in diamond and carbide is formed in the workpiece . Iron is one such material . Cutting tools with diamond iron group material , the friction generated heat causes diffusion of carbon atoms in the diamond into the iron , the resulting diamond coating due diamond blade circular saw to chemical wear and premature failure .
( 3 ) re-grinding and ( or ) heavy coating of diamond coated tools is difficult to guarantee the quality of the coating formed on the surface as the tool for the pure diamond , so the tool with a diamond wheel for re-grinding takes a very long time. In addition , the growth of the diamond tool used . Preparation of the tool will change the chemical properties of the surface , since the coating of this chemical properties requires very precise control, so the effect of the tool recoating difficult to be guaranteed .
( 4 ) diamond coated tool life varies
Like any other tool , diamond coated tool life varies , depending on the material to be cut , the choice of feed rate and cutting speed , and the geometry of the workpiece and so on. Generally, diamond-coated graphite machining tool life is uncoated carbide tools 10-20 times , in some cases, may even be longer. This way , you can use a tool to complete almost any processing tasks without tool change due to tool wear and to avoid disruption and recalibration process , making it possible to achieve unattended machining . The processing of the composite material , is entirely possible to obtain a longer tool life.
According to reports, in the processing of high-density glass fiber , carbon fiber and Gl0-FR4 other difficult cutting blades machining composite materials , diamond-coated tool life up to uncoated carbide tool 70 times .
( 5 ) diamond coating spalling can prevent flaking coating of diamond -coated tools are a serious problem , but also a common problem ( especially in the processing of materials like carbon fiber ) , will lead to unpredictable tool life . The late 1990s , interfacial chemical properties were identified as affecting the diamond coating adhesion properties of important factors. By selecting good compatibility Carbide chemical characteristics, the use of appropriate technology and reasonable pre- deposition reaction conditions , it is possible to reduce or eliminate the diamond coating spalling , stably smooth wear patterns . Observed under the microscope normal wear diamond coated tool , you can find the diamond was worn until stable carbide substrate , without chipping or peeling .
Amorphous diamond ( also called diamond-like carbon - Annotation ) coatings are deposited using a PVD process carbon . It has a key part of the diamond SP3 , SP2 also has some carbon bond ; their sds hammer drill bits film hardness is high, but lower than the hardness of diamond film ; thickness than we usually deposited diamond film to be thinner . Machining graphite , amorphous diamond coated tool life is uncoated carbide tools 2-3 times. In contrast , CVD diamond is deposited using CVD process pure diamond coating , machining graphite carbide cutting tool life is 12-20 times , thereby reducing the number of tool changes to improve the reliability and accuracy of processing consistency.
( 2 ) can not be hardened steel with diamond tooling
Diamond from carbon atoms. Certain materials when heated , sucked from the carbon atoms in diamond and carbide is formed in the workpiece . Iron is one such material . Cutting tools with diamond iron group material , the friction generated heat causes diffusion of carbon atoms in the diamond into the iron , the resulting diamond coating due diamond blade circular saw to chemical wear and premature failure .
( 3 ) re-grinding and ( or ) heavy coating of diamond coated tools is difficult to guarantee the quality of the coating formed on the surface as the tool for the pure diamond , so the tool with a diamond wheel for re-grinding takes a very long time. In addition , the growth of the diamond tool used . Preparation of the tool will change the chemical properties of the surface , since the coating of this chemical properties requires very precise control, so the effect of the tool recoating difficult to be guaranteed .
( 4 ) diamond coated tool life varies
Like any other tool , diamond coated tool life varies , depending on the material to be cut , the choice of feed rate and cutting speed , and the geometry of the workpiece and so on. Generally, diamond-coated graphite machining tool life is uncoated carbide tools 10-20 times , in some cases, may even be longer. This way , you can use a tool to complete almost any processing tasks without tool change due to tool wear and to avoid disruption and recalibration process , making it possible to achieve unattended machining . The processing of the composite material , is entirely possible to obtain a longer tool life.
According to reports, in the processing of high-density glass fiber , carbon fiber and Gl0-FR4 other difficult cutting blades machining composite materials , diamond-coated tool life up to uncoated carbide tool 70 times .
( 5 ) diamond coating spalling can prevent flaking coating of diamond -coated tools are a serious problem , but also a common problem ( especially in the processing of materials like carbon fiber ) , will lead to unpredictable tool life . The late 1990s , interfacial chemical properties were identified as affecting the diamond coating adhesion properties of important factors. By selecting good compatibility Carbide chemical characteristics, the use of appropriate technology and reasonable pre- deposition reaction conditions , it is possible to reduce or eliminate the diamond coating spalling , stably smooth wear patterns . Observed under the microscope normal wear diamond coated tool , you can find the diamond was worn until stable carbide substrate , without chipping or peeling .
2013年10月25日星期五
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.
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.
2013年10月23日星期三
Diamond tools for processing stone products, the impact of the main reasons
Stone processing mainly sawing, cutting , grinding, polishing . Means workability stone sawing, cutting , grinding, polishing and ease of processing .
Sawing, cutting the same , grinding, polishing , although different, but very similar. So the general workability dry core drill bits usually refers to the stone can be cut and grindability . Affect the stone processing are the main factors :
( A ) Hardness
Generally , the greater the hardness of the stone , the more difficult the process , the greater the wear of the tool .
( 2 ) Mineral and chemical composition
The material components stone material components include mineral composition and chemical composition , different minerals and chemical composition , processing is different. Such as marble rock-forming minerals are calcite , dolomite , and its Mohs hardness is 3 and 3.5-4 , respectively , compared with granite low hardness, ease of processing . Granite is glass blades the main rock-forming minerals quartz, orthoclase , plagioclase , and their Mohs hardness of 6.5-7 . Its workability depends largely on the content of quartz and feldspar , the higher the content , the granite blades more difficult process . In the chemical composition , such as the higher SiO2 content , processing more difficult .
( 3 ) the structure of the rock structure
In general , uniform particles than the uneven stone easy processing , high quality polishing ratio tabular fine , dense stone gloss than the loose stone . Mineral good crystallinity and orientation , the optical axis direction will greatly enhance the gloss after polishing . Rock cleavage, grain boundary and initial crack on the workability is also very important factors.
Sawing, cutting the same , grinding, polishing , although different, but very similar. So the general workability dry core drill bits usually refers to the stone can be cut and grindability . Affect the stone processing are the main factors :
( A ) Hardness
Generally , the greater the hardness of the stone , the more difficult the process , the greater the wear of the tool .
( 2 ) Mineral and chemical composition
The material components stone material components include mineral composition and chemical composition , different minerals and chemical composition , processing is different. Such as marble rock-forming minerals are calcite , dolomite , and its Mohs hardness is 3 and 3.5-4 , respectively , compared with granite low hardness, ease of processing . Granite is glass blades the main rock-forming minerals quartz, orthoclase , plagioclase , and their Mohs hardness of 6.5-7 . Its workability depends largely on the content of quartz and feldspar , the higher the content , the granite blades more difficult process . In the chemical composition , such as the higher SiO2 content , processing more difficult .
( 3 ) the structure of the rock structure
In general , uniform particles than the uneven stone easy processing , high quality polishing ratio tabular fine , dense stone gloss than the loose stone . Mineral good crystallinity and orientation , the optical axis direction will greatly enhance the gloss after polishing . Rock cleavage, grain boundary and initial crack on the workability is also very important factors.
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
(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
2013年10月10日星期四
Diamond saw blades for cutting metal can cause
1 , diamond saw blade is characterized by soft afraid of hard afraid
2, the metal part of the plastic material , is for marble, glass , the metal to be "soft" is much more
3 , marble, glass is brittle concrete saw blades material , harder than the metal
4 , diamond is a valuable material , although the diamond saw blade diamond is a man , but it is expensive , it is made by a method using powder metallurgy , that is, the diamond particles in the metal powder mixed sintering rather backward over the blade , the blade is to wrap diamond grinding wheel for metal rubbed off , exposing the diamond particles less than half the pieces , this is the diamond particles exposed head was cut marble "blade"
5 , diamond saw blade "cut" marble , it granite blade is actually a diamond will powdered marble , marble which will "cut" open to the
6, if using a diamond saw blade to "cut" metal , "soft" diamond particles of the metal will be "glued down " so that the diamond blade failure . Remember: Do not use diamond saw to cut metal !
7 , with ordinary thin grinding wheel cutting metal is possible, although this wheel is a metal ground into powder, but not as good as diamond grit is precious , and that sand is bonded with a special adhesive overall shape , that is, said that the whole can be " cut" of the sand grains , cylindrical sanding off the back of the sand can continue to "cut"
2, the metal part of the plastic material , is for marble, glass , the metal to be "soft" is much more
3 , marble, glass is brittle concrete saw blades material , harder than the metal
4 , diamond is a valuable material , although the diamond saw blade diamond is a man , but it is expensive , it is made by a method using powder metallurgy , that is, the diamond particles in the metal powder mixed sintering rather backward over the blade , the blade is to wrap diamond grinding wheel for metal rubbed off , exposing the diamond particles less than half the pieces , this is the diamond particles exposed head was cut marble "blade"
5 , diamond saw blade "cut" marble , it granite blade is actually a diamond will powdered marble , marble which will "cut" open to the
6, if using a diamond saw blade to "cut" metal , "soft" diamond particles of the metal will be "glued down " so that the diamond blade failure . Remember: Do not use diamond saw to cut metal !
7 , with ordinary thin grinding wheel cutting metal is possible, although this wheel is a metal ground into powder, but not as good as diamond grit is precious , and that sand is bonded with a special adhesive overall shape , that is, said that the whole can be " cut" of the sand grains , cylindrical sanding off the back of the sand can continue to "cut"
2013年10月8日星期二
Circular blade how to install
Usually get the machine, many people do not know how to deal with, to share some of the following circular blade shearing machine disassembly and installation processes and the steps that core drill bits we should pay attention to some of the problems!
The circular blade shears and how to mix it together? First, we must first remove the front bench clipboard, front support arms, and lower front cover plate. Then we must be very careful, very sharp circular blade shears, when the whole process of operation are used to bring gloves, first turn off the pump motor, loosen the screw when the first machine in the middle of the clipboard loose screws at both ends The left one cup grinding wheels screw from the fixed effect, and then screw the rear of the clipboard on the blade, this time you can grab the clipboard blades by hand, leaving both ends of the screws removed, remove the rear , slowly remove the circular blade, then you can start the pump, so that the slider in the upper dead point, with wooden table and on the mat in between the blades, turn off the concrete ring saw pump motor, loosen and remove all installed on the blade screws and gently remove the circular blade.
The second step, shearing blades on the installation, first with the blade, with the specifications for the M12 * 40 screws on the blade, not on the ends of the first blade. Then be sure to use the stick against the upper blade, the blade and the contact surface of the slider can be fully tightened after snapping has been installed on the M12 * 40 bolts, when the slider down to the bottom dead point, to turn off pump motor, and then loaded on the blade screws tightened, the blade screw tightening torque should be 35N / M.
Finally, under the circular blade shears installation process, oil pump, when the slider up to the upper dead point, turn off the pump, replace the next round blade, using M12 * 45 hex screws, then pressed with a wooden stick under the blade, so that the next stage of the work under the blade and the blade snapping joints fully tighten screw. In this way, the circular blade clipboard installation process is complete.
The circular blade shears and how to mix it together? First, we must first remove the front bench clipboard, front support arms, and lower front cover plate. Then we must be very careful, very sharp circular blade shears, when the whole process of operation are used to bring gloves, first turn off the pump motor, loosen the screw when the first machine in the middle of the clipboard loose screws at both ends The left one cup grinding wheels screw from the fixed effect, and then screw the rear of the clipboard on the blade, this time you can grab the clipboard blades by hand, leaving both ends of the screws removed, remove the rear , slowly remove the circular blade, then you can start the pump, so that the slider in the upper dead point, with wooden table and on the mat in between the blades, turn off the concrete ring saw pump motor, loosen and remove all installed on the blade screws and gently remove the circular blade.
The second step, shearing blades on the installation, first with the blade, with the specifications for the M12 * 40 screws on the blade, not on the ends of the first blade. Then be sure to use the stick against the upper blade, the blade and the contact surface of the slider can be fully tightened after snapping has been installed on the M12 * 40 bolts, when the slider down to the bottom dead point, to turn off pump motor, and then loaded on the blade screws tightened, the blade screw tightening torque should be 35N / M.
Finally, under the circular blade shears installation process, oil pump, when the slider up to the upper dead point, turn off the pump, replace the next round blade, using M12 * 45 hex screws, then pressed with a wooden stick under the blade, so that the next stage of the work under the blade and the blade snapping joints fully tighten screw. In this way, the circular blade clipboard installation process is complete.
2013年9月27日星期五
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
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
2013年9月22日星期日
Higher cutting speed can reduce cutting forces
will increase the cutting speed cutting force, thus accelerating tool chipping failure, so a diamond cutting tool machining should not be too low.
Should be avoided in the stationary state the diamond tool and workpiece or other hard object, tool edge to prevent bruising. Operator granite polishing pad nails and fingerprints easily entrained sand and other hard objects, scratching with nails or fingers directly blade diamond blade may be damaged. Diamond tool knife should be used to detect and adjust optical instruments and other non-contact measurement method.
Should be used plus the amount of alcohol or acetone cotton cleaning diamond tools. Put the tool when not in use rubber or plastic protective sleeve, and placed in a separate knife box.
Using the straight line wiper diamond tools for cutting mirror, requiring deputy angle less than a few minutes, and the tool that may arise during the installation of the installation error of 1 °, so the need for pre-processing tool for the knife, by adjusting the cutting tools light repair tool edge and parallel feeding direction, in order to get the best surface roughness. The knife is as follows: First, a short machined on the workpiece surface, and then in the 10 to 30 times under the microscope to adjust the tool so that the wiper with a new machined surface of the mirror parallel. Since parallelism higher, and therefore must be patient and repeated fine adjustments. It should be noted: Unscrew the knife lever clamping screw may produce slight rotation of the cutter knife lead to failure.
Because straight wiper blade tool for time-consuming process, so for some precision cutting can be less demanding of the carbide tipped saw blade mirror radius of 10 ~ 30mm arc cutting tool instead of a straight line wiper tool. The shape of this circular blade cutter tools with contact lenses similar, but reduces the posterior horn, increasing the nose radius. Using this tool the knife is not only simplifies the process, and when an arc worn, after a slight rotation of the tool may be used for another new arc, thereby increasing the tool life. Precision circular single-crystal diamond cutting tool is machining the necessary tools concave mirror.
Should be avoided in the stationary state the diamond tool and workpiece or other hard object, tool edge to prevent bruising. Operator granite polishing pad nails and fingerprints easily entrained sand and other hard objects, scratching with nails or fingers directly blade diamond blade may be damaged. Diamond tool knife should be used to detect and adjust optical instruments and other non-contact measurement method.
Should be used plus the amount of alcohol or acetone cotton cleaning diamond tools. Put the tool when not in use rubber or plastic protective sleeve, and placed in a separate knife box.
Using the straight line wiper diamond tools for cutting mirror, requiring deputy angle less than a few minutes, and the tool that may arise during the installation of the installation error of 1 °, so the need for pre-processing tool for the knife, by adjusting the cutting tools light repair tool edge and parallel feeding direction, in order to get the best surface roughness. The knife is as follows: First, a short machined on the workpiece surface, and then in the 10 to 30 times under the microscope to adjust the tool so that the wiper with a new machined surface of the mirror parallel. Since parallelism higher, and therefore must be patient and repeated fine adjustments. It should be noted: Unscrew the knife lever clamping screw may produce slight rotation of the cutter knife lead to failure.
Because straight wiper blade tool for time-consuming process, so for some precision cutting can be less demanding of the carbide tipped saw blade mirror radius of 10 ~ 30mm arc cutting tool instead of a straight line wiper tool. The shape of this circular blade cutter tools with contact lenses similar, but reduces the posterior horn, increasing the nose radius. Using this tool the knife is not only simplifies the process, and when an arc worn, after a slight rotation of the tool may be used for another new arc, thereby increasing the tool life. Precision circular single-crystal diamond cutting tool is machining the necessary tools concave mirror.
2013年9月16日星期一
Electroplated diamond tools, grinding wheels improvements
Electroplated diamond tool holding force exists insufficient particle shedding and other issues, has seriously affected the tool life and efficiency. This paper reviews the recent development of domestic and step pads electroplated diamond tool performance improvement methods , grouped into the following three categories: one , improving coating matrix material properties, improve the coating and bonding of the diamond supporting role ; 2 , by increasing the diamond and the the contact area of the carcass , to eliminate the gap between the diamond and the coating ; 3 , the diamond particle surface treatment , the coating is formed between the diamond and the chemical bonding . The text of the various methods are described in detail , there is potential for some methods are recommended to readers of electroplated diamond tools, improved methods have a comprehensive understanding of the system Because diamond has a high hardness, high strength, high wear resistance and low coefficient of linear expansion and a series of excellent physical and chemical characteristics, are used to produce diamond tools for machining hard and brittle materials difficult to machine . Electroplating diamond tools prepared by wall saw blades electrodeposition of metal , the consolidation of loose diamond particles in the plating layer, and the diamond particles have a cutting ability . Electroplated diamond tool manufacturers prepared low temperature to avoid heat loss of the diamond , and the production process is simple , less investment in equipment , the manufacturing cycle is short, convenient shape and can repair. Therefore, electroplated diamond products have a variety of grinding wheel, grinding , needle files , dig riving knife , trim wheel , geological drill bits, reaming, and external circular cutting disc , reamers, wire saws and other special tools, machinery, electronics, construction, drilling , optical glass processing and other industries widely used [ ] .
At present, prepared at home and abroad with electroplated diamond tools , the main problem is that the coating matrix metal and the binding force between the diamond particles is low, the use of diamond wet granite pads particles by force , it is easy to fall off , resulting in short life. The main reason for these phenomena is prepared by electroplating diamond tool manufacturing low temperature, resulting in the surface of the diamond particles are difficult for the general metal infiltration, instead of getting a strong chemical bond , and often a gap . In addition, by the impact of the plating process , an optional type coating metal diamond tools limited ( only nickel, chromium and other small metals and their alloys ) , unlike the hot-pressing tool type of metal used as widely .
To solve the above problem, people used a variety of measures to address the diamond and the coating metal binding force . This article describes the comprehensive recent development at home and abroad electroplated diamond tool performance improvement methods , and they were categorized , I hope to give people a detailed and clear understanding.
At present, prepared at home and abroad with electroplated diamond tools , the main problem is that the coating matrix metal and the binding force between the diamond particles is low, the use of diamond wet granite pads particles by force , it is easy to fall off , resulting in short life. The main reason for these phenomena is prepared by electroplating diamond tool manufacturing low temperature, resulting in the surface of the diamond particles are difficult for the general metal infiltration, instead of getting a strong chemical bond , and often a gap . In addition, by the impact of the plating process , an optional type coating metal diamond tools limited ( only nickel, chromium and other small metals and their alloys ) , unlike the hot-pressing tool type of metal used as widely .
To solve the above problem, people used a variety of measures to address the diamond and the coating metal binding force . This article describes the comprehensive recent development at home and abroad electroplated diamond tool performance improvement methods , and they were categorized , I hope to give people a detailed and clear understanding.
2013年9月12日星期四
The 20 diamond truing tool tips
Drill machine is a simple, lightweight , economical tunneling machine , the stone block mining machine important , are the percussion device , and the need for both oil and water and gas with the use of a variety of auxiliary media , which on the one hand the reliability of the device , security put forward higher requirements ; hand, but also to the operation and maintenance of equipment to bring some difficulties. Scientific diamond blades use and maintenance of drilling machines, not only to ensure safety in production , to prevent fatal accidents is important, but also to improve equipment performance , working life, production efficiency is important.
Preparations before start
1 , the new purchase to the drilling machine, inside coated with anti-rust grease viscosity , clear and must be removed before use . Reload , all moving parts to be lubricated table Mina . Installed, the drilling machine is turned pressure gas line , open a small wind operation , check its functioning properly.
2 , the automatic oiler inject lubricating oil, used oil is 20 #, 30 # , 40 # oil . Loaded oil containers should be clean , covered , to prevent rock dust and dirt into the oiler .
3 , inspection workplace pressure and water pressure. Wind pressure is 0.4-0.6MPa, air pressure is too high will tile saw blade accelerate the mechanical parts of the damage , too low will reduce drilling efficiency and corrosion mechanical parts. Pressure is generally 0.2-0.3MPa, water pressure is too high, the water will destroy the lubrication poured inside the machine , drilling machine efficiency and reduce corrosion mechanical parts ; too low flush adverse effects .
4, using Qianzai meets quality requirements , the failure of Qianzai prohibited.
5 , duct access drilling machines, should be placed inside the dirt off the gas will blow . Connection pipes money to waterproof joints rinse the dirt, wind and water pipes must be tightened to prevent shedding wounding .
6 , the solder tail into the drilling head , forced clockwise Qianzai If we can not move, that has jammed inside the machine phenomenon , should be promptly treated .
7 , tighten the bolts , open air check the functioning of the propeller , in normal operation can begin work .
8 , rail drilling machine should stand a good prop , and check the functioning of the propeller , air leg rock drill rock drill machine and upward air leg must check the degree of flexibility and so on.
9 , on request of the hydraulic rock drill hydraulic system has a good seal to prevent contamination of hydraulic oil , hydraulic oil to ensure that there is constant pressure.
Precautions when working
1 , opening the eyes should be rotated slowly until the depth of the hole to reach 10-15mm later, and then gradually moved to full operation . In the drilling process, according to the drill rod hole straight forward design , and is located in center of the hole .
2 , should be reasonable in the drilling test drive shaft thrust. Shaft thrust is too small, machine-generated bounce , vibration increases , drilling efficiency ; axis thrust too much , Qianzai top tight eyes, so that the machine is operating in overload , easy to premature wear parts , making drilling slowed .
3 , drilling machines jamming , should reduce the thrust axis , you can gradually become normal. If invalid , should be immediately shut down. First slowly rotating drill rod with a wrench , and then open the gas pressure Qianzai slowly rotating , prohibit the use of the concrete polishing pads approach to beat Rod .
4 , the situation often observed row powder . Pink row is normal, mud along slowly outflow orifice ; contrary, to forcefully blow holes. If you are still valid , you should check Qianzai water holes and solder tail state, and then check the water needle , replace the damaged parts.
5 , to observe the oil reserves and oiling conditions , regulate the fuel injection . Oil operation, easy to premature wear of parts . When the oil is excessive, will cause face pollution.
6 , the operation should pay attention to the sound of the machine , observe its functioning , identify problems and timely treatment.
7, pay attention Qianzai working condition , abnormal timely replacement .
8, the operation up rock drill air leg should pay attention to the gas , to prevent drilling machines made bobbing
Preparations before start
1 , the new purchase to the drilling machine, inside coated with anti-rust grease viscosity , clear and must be removed before use . Reload , all moving parts to be lubricated table Mina . Installed, the drilling machine is turned pressure gas line , open a small wind operation , check its functioning properly.
2 , the automatic oiler inject lubricating oil, used oil is 20 #, 30 # , 40 # oil . Loaded oil containers should be clean , covered , to prevent rock dust and dirt into the oiler .
3 , inspection workplace pressure and water pressure. Wind pressure is 0.4-0.6MPa, air pressure is too high will tile saw blade accelerate the mechanical parts of the damage , too low will reduce drilling efficiency and corrosion mechanical parts. Pressure is generally 0.2-0.3MPa, water pressure is too high, the water will destroy the lubrication poured inside the machine , drilling machine efficiency and reduce corrosion mechanical parts ; too low flush adverse effects .
4, using Qianzai meets quality requirements , the failure of Qianzai prohibited.
5 , duct access drilling machines, should be placed inside the dirt off the gas will blow . Connection pipes money to waterproof joints rinse the dirt, wind and water pipes must be tightened to prevent shedding wounding .
6 , the solder tail into the drilling head , forced clockwise Qianzai If we can not move, that has jammed inside the machine phenomenon , should be promptly treated .
7 , tighten the bolts , open air check the functioning of the propeller , in normal operation can begin work .
8 , rail drilling machine should stand a good prop , and check the functioning of the propeller , air leg rock drill rock drill machine and upward air leg must check the degree of flexibility and so on.
9 , on request of the hydraulic rock drill hydraulic system has a good seal to prevent contamination of hydraulic oil , hydraulic oil to ensure that there is constant pressure.
Precautions when working
1 , opening the eyes should be rotated slowly until the depth of the hole to reach 10-15mm later, and then gradually moved to full operation . In the drilling process, according to the drill rod hole straight forward design , and is located in center of the hole .
2 , should be reasonable in the drilling test drive shaft thrust. Shaft thrust is too small, machine-generated bounce , vibration increases , drilling efficiency ; axis thrust too much , Qianzai top tight eyes, so that the machine is operating in overload , easy to premature wear parts , making drilling slowed .
3 , drilling machines jamming , should reduce the thrust axis , you can gradually become normal. If invalid , should be immediately shut down. First slowly rotating drill rod with a wrench , and then open the gas pressure Qianzai slowly rotating , prohibit the use of the concrete polishing pads approach to beat Rod .
4 , the situation often observed row powder . Pink row is normal, mud along slowly outflow orifice ; contrary, to forcefully blow holes. If you are still valid , you should check Qianzai water holes and solder tail state, and then check the water needle , replace the damaged parts.
5 , to observe the oil reserves and oiling conditions , regulate the fuel injection . Oil operation, easy to premature wear of parts . When the oil is excessive, will cause face pollution.
6 , the operation should pay attention to the sound of the machine , observe its functioning , identify problems and timely treatment.
7, pay attention Qianzai working condition , abnormal timely replacement .
8, the operation up rock drill air leg should pay attention to the gas , to prevent drilling machines made bobbing
2013年9月2日星期一
Diamond Taper Files
Product file body made of high quality 45 gauge steel forging, surface from high-strength synthetic diamond plating made of wear-resistant, high efficiency. This product is suitable Plate Compactor for high hardness cutting and filing metal, such as tungsten carbide, hardened or nitrided tool steel cutter, die deburring, shaping, chamfering, polishing, and industrial fixtures, etc., can also be used for hardness than high and brittle non-metallic materials processing, such as glass, ceramics, jewelry and jade. Size, sand grain size varies, for a variety of ceramic tile saw processing needs. Product Attributes tool measuring tools: Taiwan sus drills, taps nachi drill, cta tungsten steel cutter, lv tungsten steel cutter, stk white steel cutter, SU's cutter, the Danish cement drill, sck, osg, yanmawa wire tapping, Sweden tungsten steel tool, a variety of blade arbor, 12.9 high-strength screws, a product of Taiwan diamond tools, machine tool accessories fine exhibition in Taiwan, the Taiwan Michelin machine tool accessories, Mitutoyo gage full, Switzerland gage full, granite platform, cast iron platform. Other notes Abrasives: U.S. Norton grinding wheel, grinding wheel Dili Institute in Taiwan, the dry cut blades Taiwan Chinese wheel, Tellabs profit wheel, various guide wheel, the benchmark. Ebel cbn diamond wheel, a product of Taiwan diamond grinding wheel, wash the slate pencil, Mitsubishi wheel, Germany Warriors sandpaper, Japanese Red Eagle sandpaper, belt, the U.S. will treasure Whetstone, Korea Admiralty Whetstone, a variety of grinding. hundred leaves, thousands of impeller, polishing, cutting films, cloth wheel, grinding paste, polishing oil, one hundred clean cloth, diamond file. grinding, shaking hands cut slices.
2013年9月1日星期日
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.
2013年8月27日星期二
diamond tool section
Many different types of diamond cutting tools such as lathe, planer, milling and drilling tools, etc. They geometric shapes, varying degrees of complexity, but they are part of the structure and green concrete blades geometry of the cutting angles have many common features, which are the most commonly used tools, the simplest and most basic cutting tools, and thus the most representative. Other diamond turning tool can be regarded as a combination or deformation. Therefore, the study of metal cutting tools, generally an example research and analysis tools.7.3.1 Composition of turning
Turning from the cutting portion, handle two parts. Cutting portion undertake machining tasks shank for clamping on the machine tool holder. By a number of side cutting portion of the cutting edge components. We used external turning tool is controlled by a nose, two cutting edges, consisting of three flank
1 flank
(L) on the tool rake face Aγ diamond chip flow over the surface;
(2) and the workpiece flank Aα cutting surface opposite to the flank;
(3) minor flank Aα the machined surface opposite flank.
(2) cutting edge
(1) S before the main cutting edge rake face and the flank line of intersection, assume the primary cutting work;
(2) the secondary cutting edge rake face and the sub S flank line of intersection bears a small amount of cutting work.
(3) tip is the main and secondary cutting edge intersects the point, in fact, impossible to grind very tip of the point, but by a polyline or arc composed of tiny, tiny tip radius of the arc is called arc
Radius, expressed by rε
7.3.2 diamond tool geometry reference system
In order to facilitate the identification of turning on the geometry, often choose a frame of reference as a benchmark by measuring the flank or cutting edge relative to the reference frame coordinate plane angle values to reflect their spatial orientation.
Diamond tool geometry reference system there are two types, diamond tool mark angle reference lines and diamond cutter working angle reference system.
1 diamond cutter marked angle reference system
(1) Assumptions diamond cutter marked angle concrete saw blades reference system is designed to mark the diamond cutter, grinding and measuring angles benchmarks defined in this basis, said diamond cutter diamond tool angle marked angle. In order to make the coordinate reference system with the sharpening plane, measuring datum consistent with the following assumptions special provisions.
Assuming motion condition ① with the main motion vectors instead of the relative motion vc approximate rate of synthesis vector ve (i.e. vf = 0).
② Assuming installation conditions require Arbor centerline and perpendicular to the feed direction of movement; tip and the center of the workpiece contour.
(2) Diamond point of reference annotation tool types according ISO3002/1-1997 standard recommends, diamond tool mark angle reference system with orthogonal planes of reference, the normal plane of reference and assuming that the work plane reference frame three.
① orthogonal plane of reference plane orthogonal plane reference system consists of the following three components:
Orthogonal planes of reference
Base pr is over a selected point on the cutting edge parallel to or perpendicular to the manufacture diamond tools, grinding, and the measurement is suitable for mounting or locating a plane or axis generally perpendicular to its orientation to the main movement direction of the assumed . Turning the base surface are parallel to its bottom surface.
Ps is the main cutting plane through a selected point of the cutting edge and the main cutting edge and perpendicular to the tangent plane of the base plane.
Po is perpendicular planes over a selected point of the cutting edge and perpendicular to both the plane of the base surface and the cutting plane.
Over the main and secondary cutting edge of a selected point can create orthogonal planes of reference. Base surface pr, the main cutting plane ps, is
Cross-plane po three planes perpendicular to each other in space. ② France France plane of reference plane of reference by the pr, ps and France plane pn components. Wherein the method is a planar pn over a selected point of the cutting edge perpendicular to the plane of the cutting edge
③ assuming that the glass blades work plane is assumed working plane reference frame of reference by the pr, pf and pp components. Pf is assumed that the work plane through the cutting edge parallel to a selected point and the assumed feed motion perpendicular to the plane of the base plane. Back plane pp is over a selected point of the cutting edge perpendicular to assume that both the feed movement and the plane perpendicular to the basal plane. Marked diamond tool design, grinding, the most common is the measured angle orthogonal planes of reference.
1 diamond cutter working angle reference system
Working angle diamond tool diamond cutting tool reference system is working angle reference (without regard to assumptions), as defined in this basis, said diamond cutter diamond tool angle working angle. It also has orthogonal planes of reference, the normal plane of reference and assuming that the work plane of reference.
Turning from the cutting portion, handle two parts. Cutting portion undertake machining tasks shank for clamping on the machine tool holder. By a number of side cutting portion of the cutting edge components. We used external turning tool is controlled by a nose, two cutting edges, consisting of three flank
1 flank
(L) on the tool rake face Aγ diamond chip flow over the surface;
(2) and the workpiece flank Aα cutting surface opposite to the flank;
(3) minor flank Aα the machined surface opposite flank.
(2) cutting edge
(1) S before the main cutting edge rake face and the flank line of intersection, assume the primary cutting work;
(2) the secondary cutting edge rake face and the sub S flank line of intersection bears a small amount of cutting work.
(3) tip is the main and secondary cutting edge intersects the point, in fact, impossible to grind very tip of the point, but by a polyline or arc composed of tiny, tiny tip radius of the arc is called arc
Radius, expressed by rε
7.3.2 diamond tool geometry reference system
In order to facilitate the identification of turning on the geometry, often choose a frame of reference as a benchmark by measuring the flank or cutting edge relative to the reference frame coordinate plane angle values to reflect their spatial orientation.
Diamond tool geometry reference system there are two types, diamond tool mark angle reference lines and diamond cutter working angle reference system.
1 diamond cutter marked angle reference system
(1) Assumptions diamond cutter marked angle concrete saw blades reference system is designed to mark the diamond cutter, grinding and measuring angles benchmarks defined in this basis, said diamond cutter diamond tool angle marked angle. In order to make the coordinate reference system with the sharpening plane, measuring datum consistent with the following assumptions special provisions.
Assuming motion condition ① with the main motion vectors instead of the relative motion vc approximate rate of synthesis vector ve (i.e. vf = 0).
② Assuming installation conditions require Arbor centerline and perpendicular to the feed direction of movement; tip and the center of the workpiece contour.
(2) Diamond point of reference annotation tool types according ISO3002/1-1997 standard recommends, diamond tool mark angle reference system with orthogonal planes of reference, the normal plane of reference and assuming that the work plane reference frame three.
① orthogonal plane of reference plane orthogonal plane reference system consists of the following three components:
Orthogonal planes of reference
Base pr is over a selected point on the cutting edge parallel to or perpendicular to the manufacture diamond tools, grinding, and the measurement is suitable for mounting or locating a plane or axis generally perpendicular to its orientation to the main movement direction of the assumed . Turning the base surface are parallel to its bottom surface.
Ps is the main cutting plane through a selected point of the cutting edge and the main cutting edge and perpendicular to the tangent plane of the base plane.
Po is perpendicular planes over a selected point of the cutting edge and perpendicular to both the plane of the base surface and the cutting plane.
Over the main and secondary cutting edge of a selected point can create orthogonal planes of reference. Base surface pr, the main cutting plane ps, is
Cross-plane po three planes perpendicular to each other in space. ② France France plane of reference plane of reference by the pr, ps and France plane pn components. Wherein the method is a planar pn over a selected point of the cutting edge perpendicular to the plane of the cutting edge
③ assuming that the glass blades work plane is assumed working plane reference frame of reference by the pr, pf and pp components. Pf is assumed that the work plane through the cutting edge parallel to a selected point and the assumed feed motion perpendicular to the plane of the base plane. Back plane pp is over a selected point of the cutting edge perpendicular to assume that both the feed movement and the plane perpendicular to the basal plane. Marked diamond tool design, grinding, the most common is the measured angle orthogonal planes of reference.
1 diamond cutter working angle reference system
Working angle diamond tool diamond cutting tool reference system is working angle reference (without regard to assumptions), as defined in this basis, said diamond cutter diamond tool angle working angle. It also has orthogonal planes of reference, the normal plane of reference and assuming that the work plane of reference.
2013年8月26日星期一
diamond cutter tool wear and process parameters
Diamond hard chemicals belonging to a substance, so the diamond tool is manufactured so hard, diamond tool wear and tool process parameters and the coordination between process parameters have a great relationship, it is necessary to process parameters optimized.
(1) Processing Conditions
Because diamond tool wear their concrete saw blades load status are closely related, so the processing conditions will have a significant impact on wear. Daixiang Guo and other analysis of engineering ceramic diamond wheel cutting wheel life when the process parameters on the impact that when the other parameters constant, corresponding to the depth of each cut exists an optimum wheel speed; when the cutting depth and the wheel speed is constant, there is a optimum feed rate; various process parameters on the grinding wheel wear effects radial order was: wheel speed - cutting depth - feed speed. Tool wear and machining process parameters and the core drill bits coordination between process parameters have a great relationship, it is necessary to optimize the process parameters. ZJPei analyzed the situation when grinding wafers, the following conclusions: When the wheel speed is 4350rpm, chuck speed is 590rpm, the grinding force increases, when it reaches a certain peak, back to a lower value, and Click cycle continues, gradually become dull wheel described, when the grinding force reaches a certain value, broken grains; when the wheel speed is 2175rpm, the chuck speed of 40rpm, the grinding wheel when the grinding force is smaller broken. Therefore, the grinding force is substantially constant and high wear rates.
(2) Work material
Different workpiece materials, the sanding belt fracture toughness, hardness etc difference is large, also affects the properties of the workpiece material wear of diamond tools. It is a professional with a diamond saw cutting tool wear when different stone and said: When cutting hard granite, the diamond saw abrasive wear is mainly macro broken and fall off, because the holding power is not enough, the cutting conditions bad; when cutting softer granite, the full microscopic crystal and abrasive crushing larger proportion, while still high proportion of grain shedding, such wear to keep the blade cutting capacity. XU Xi Peng said: granite in different minerals is to determine the nature and mechanism of deformation failure mode of diamond key. Quartz content is higher, the more intense wear diamond; orthoclase content is clearly high, the sawing process is relatively difficult to carry out; under the same cutting conditions, coarse granularity finer granularity than granite granite more difficult to cleavage fracture occurs.
(1) Processing Conditions
Because diamond tool wear their concrete saw blades load status are closely related, so the processing conditions will have a significant impact on wear. Daixiang Guo and other analysis of engineering ceramic diamond wheel cutting wheel life when the process parameters on the impact that when the other parameters constant, corresponding to the depth of each cut exists an optimum wheel speed; when the cutting depth and the wheel speed is constant, there is a optimum feed rate; various process parameters on the grinding wheel wear effects radial order was: wheel speed - cutting depth - feed speed. Tool wear and machining process parameters and the core drill bits coordination between process parameters have a great relationship, it is necessary to optimize the process parameters. ZJPei analyzed the situation when grinding wafers, the following conclusions: When the wheel speed is 4350rpm, chuck speed is 590rpm, the grinding force increases, when it reaches a certain peak, back to a lower value, and Click cycle continues, gradually become dull wheel described, when the grinding force reaches a certain value, broken grains; when the wheel speed is 2175rpm, the chuck speed of 40rpm, the grinding wheel when the grinding force is smaller broken. Therefore, the grinding force is substantially constant and high wear rates.
(2) Work material
Different workpiece materials, the sanding belt fracture toughness, hardness etc difference is large, also affects the properties of the workpiece material wear of diamond tools. It is a professional with a diamond saw cutting tool wear when different stone and said: When cutting hard granite, the diamond saw abrasive wear is mainly macro broken and fall off, because the holding power is not enough, the cutting conditions bad; when cutting softer granite, the full microscopic crystal and abrasive crushing larger proportion, while still high proportion of grain shedding, such wear to keep the blade cutting capacity. XU Xi Peng said: granite in different minerals is to determine the nature and mechanism of deformation failure mode of diamond key. Quartz content is higher, the more intense wear diamond; orthoclase content is clearly high, the sawing process is relatively difficult to carry out; under the same cutting conditions, coarse granularity finer granularity than granite granite more difficult to cleavage fracture occurs.
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