CN107262821A - The diamond full working lining ultrathin saw bit of radial positioning distribution and its manufacture craft - Google Patents

The diamond full working lining ultrathin saw bit of radial positioning distribution and its manufacture craft Download PDF

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Publication number
CN107262821A
CN107262821A CN201710540779.XA CN201710540779A CN107262821A CN 107262821 A CN107262821 A CN 107262821A CN 201710540779 A CN201710540779 A CN 201710540779A CN 107262821 A CN107262821 A CN 107262821A
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Prior art keywords
diamond
working lining
powder
radial positioning
saw bit
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CN201710540779.XA
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Chinese (zh)
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CN107262821B (en
Inventor
张绍和
周侯
张昊旸
曲飞龙
唐健
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Central South University
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Central South University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02Circular saw blades
    • B22F1/0003
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02Compacting only
    • B22F3/03Press-moulding apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02Compacting only
    • B22F3/093Compacting only using vibrations or friction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12Both compacting and sintering
    • B22F3/14Both compacting and sintering simultaneously
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C26/00Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001Cutting tools, earth boring or grinding tool other than table ware

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

A kind of diamond full working lining ultrathin saw bit of radial positioning distribution and its manufacture craft, the present invention directly form saw blade using powder metallurgically manufacturing technology;10~800mm of diameter, the 0.2~2.5mm of thickness of saw blade, are made up of carcass working lining and mounting hole, and carcass working lining is raw material from metal dust and diamond;Using radial positioning distributed architecture, according to the diamond particles spacing dimension of design, by its heeling-in in carcass precalculated position;Using ultrasonic wave or other high-frequency shaking platforms vibration cloth powder in charging process, it is ensured that carcass thickness uniformity, then it is made through hot-pressing sintering technique.The full working lining ultrathin saw bit of the radial positioning distribution of diamond that the present invention is made, diamond connection and reasonable arrangement, Use Limitation rate height, long lifespan, saw kerf are narrow, energy consumption is low, beneficial to saving resource and the energy.

Description

The diamond full working lining ultrathin saw bit of radial positioning distribution and its manufacture craft
Technical field
The present invention principally falls into field of machining, using PM technique, is shaken using ultrasonic wave or other high-frequencies Flowing mode, implantation positioning distributed architecture diamond, more particularly to the full working lining ultrathin saw bit of the radial positioning distribution of diamond.
Background technology
In the making of conventional PCD saw blade, saw blade thickness is larger and materials are more, and diamond random distribution on saw blade is led Diamond is caused to play effect completely, the size that conventional PCD saw blade cuts seam in use is larger, easily causes Waste of material is cut, while Cutting Drag in the course of the work is also larger, power consumption is high, efficiency is low and low precision, so as to limit Make diamond saw blade normally to use, also limit the scope of application of diamond saw blade, also counteracts that entering for cutting processing technology One step develops.
The content of the invention
It is an object of the invention to provide a kind of diamond full working lining ultrathin saw bit of radial positioning distribution and its making work Skill.
The full working lining ultrathin saw bit of the radial positioning distribution of diamond is made up of carcass working lining and mounting hole, and mounting hole exists The center of saw blade, a diameter of 10~800mm of saw blade, 0.2~2.5mm of thickness, carcass working lining selects metal dust and diamond For raw material;Diamond uses radial positioning distributed architecture, and the radial positioning distributed architecture of diamond, is with saw blade central point Some the line of cuts are made in working lining for the center of circle, central point is crossed and radially makees some radioactive ray, diamond particles are arranged in On the intersection point of the line of cut and radioactive ray.The quantity of the line of cut and radioactive ray determines by saw blade size and working lining diamond concentration, Generally 2~20/mm2
The full working lining ultrathin saw bit manufacture craft of the radial positioning distribution of diamond, comprises the following steps:
The first step:Mould prepares
According to saw blade size, cold stamping die is designed and processed from steel alloy, wherein steel pressure head is to ensure that diamond is in put Shape positioning distributed architecture is penetrated, is processed using laser engraving method or electric spark method;It is more than 1.85g/cm from bulk density3, resistance to compression Intensity is more than the graphite design and processing sintering mold of 45MPa high intensity high-purity high-density;
Second step:Carcass powder is mixed
Up-to-standard required metal dust is weighed, volume fraction is added and is well mixed for 30% to 80% wetting agent, Obtain well mixed carcass metal dust compound;
3rd step:Vibrate cloth powder die-filling
Well mixed carcass metal dust compound is weighed, loading is placed on ultrasonic wave or other high-frequency shaking platforms On cold stamping die in, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency is 800Hz To 100000Hz, assemble after steel pressure head, move to extrusion forming on forcing press and obtain superthin section pressed compact;
4th step:Diamond positioning distribution
The superthin section pressed compact obtained using steel pressure head cold moudling, pressure embryo, which leaves, meets the radial positioning distribution of diamond The placement hole of structure, pressed compact is taken out from punching block, and diamond particles are placed in hole using mounting method is smeared, is made and contains diamond The ultrathin saw bit pressed compact of particle;
5th step:Powder metallurgy pressure sintering is manufactured
The ultrathin saw bit pressed compact of diamond particles will be implanted into, be assembled in graphite jig, be placed in saw blade sintering furnace, first leads to Temperature-pressure is crossed, temperature is stepped up to 900 DEG C to 980 DEG C, and pressure progressively adds to 25KN to 40KN, is then cooled to 700 DEG C To 790 DEG C, 15KN to 25KN is depressurized to, heat-insulation pressure keeping is carried out 2 minutes to 8 minutes, hot-pressing flow is completed;
6th step:Cooling and demolding
The graphite jig equipped with sintered saw bits completed after sintering process and cooling is taken out out of sintering furnace, and is stripped To the full working lining ultrathin saw bit blank of the radial positioning distribution of diamond;
7th step:Reconditioning is put the first edge on a knife or a pair of scissors
The radial positioning of diamond is distributed full working lining ultrathin saw bit blank, processing on grinding machine is flat on and polishes saw blade two Individual plane;Then its monolithic or multi-disc are arranged on saw blade blade grinding machine, carry out end face and put the first edge on a knife or a pair of scissors;
8th step:Decoration packaging
The full working lining ultrathin saw bit of the radial positioning distribution of diamond after surface rubbing and end face are put the first edge on a knife or a pair of scissors, carries out outward appearance Processing, is put in storage stand-by.
Contain cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, copper powder and glass putty in carcass metal dust described in step 2;Wherein: Cobalt powder, nickel powder, iron powder, titanium valve and chromium powder respectively account for the 2%~80% of gross mass;Copper powder and glass putty respectively account for gross mass 3%~ 60%;Powder diameter used is below 0.075mm.
Vibration cloth powder described in step 3 is die-filling, and steel alloy grinding tool is placed on into ultrasonic wave when cloth powder is die-filling or other are high On frequency shaking platform vibrate 1~8 minute, vibration frequency be 20000Hz to 80000Hz, shaking platform using ultrasonic wave or its He produces exciting force by high-frequency vibration source.
Diamond positioning distribution described in step 4, the diamond volume concentration used is 2%~60%, and particle diameter is 0.04~1.0mm;Diamond particles plant the precalculated position in carcass by radial positioning distributed architecture, and precalculated position is to utilize Laser engraving method or electric spark method process the steel pressure head of cold moudling, and pre-determined bit is determined with the concavo-convex hole position on steel pressure head surface Put, the pit of cold moudling pressed compact is that at diamond particles implantation, diamond particles are placed in hole using mounting method is smeared.
The radial positioning of diamond of the present invention is distributed being mainly characterized by for full working lining ultrathin saw bit:Using ultrasonic wave or Other high-frequencies vibration cloth powder means are beneficial to the homogenization of powder;Diamond implantation position abandons conventional random distribution form, And radial location structure is performed, give full play to effect of diamond;Using powder metallurgy pressure sintering of the present invention Ultrathin saw bit is made under temperature and pressure technique, the performance indications of ultrathin saw bit can be reached;Saw blade is using alloy-free steel matrix Full working lining extends service life;Saw blade thickness is in 0.2~2.5mm, much smaller than conventional saw blade thickness, improves sawing effect Rate.
Brief description of the drawings
Fig. 1 is diamond distribution structural representation of the present invention.
Embodiment
Embodiment 1
The full working lining ultrathin saw bit of the radial positioning distribution of diamond, saw blade diameter of phi 30mm, thickness 0.3mm, mounting hole Φ 10mm, carcass metal dust prescription quality ratio:Cobalt powder -55%, nickel powder -10%, iron powder -5%, titanium valve -2%, chromium powder - 3%th, copper powder -20%, glass putty -5%, powder size are 325 mesh (45 microns) with thin;Diamond volume concentration is 2%, granularity For 80/100 mesh (150-178 microns).
Its fabrication processing is:
1. Alloy-steel mold, steel alloy pressure head and graphite jig processing.
2. carcass metal dust batch mixing, volume fraction is 50% wetting agent and diamond particles.
3. the carcass metal dust mixed loads in Alloy-steel mold, is placed on ultrasonic activation platform and vibrates 1 point Clock, vibration frequency is 30000Hz.
4. the Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, take out pressed compact, smeared and paste diamond Then pressed compact is assembled into graphite jig, diamond is radial fixed by grain in the hole of corresponding radial positioning distributed architecture Bit distribution is as shown in Figure 1.
5. the graphite jig for installing saw blade cold pressing base is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 980 DEG C, 30KN is forced into, heat-insulation pressure keeping work is then carried out, holding temperature is 790 DEG C, dwell pressure is 25KN, soaking time is 3 points Clock, reaches thermal requirements, and the demoulding is taken out after being gone with stove is cold.
6. the saw blade blank for sintering completion is lain in into the finishing plane of rubbing down two on grinding machine.
7. the saw blade blank for repairing complete two plane of rubbing down is carried out into end face using blade grinding machine to put the first edge on a knife or a pair of scissors.
8. saw blade cleaning treatment and packed for standby use of painting after the completion of putting the first edge on a knife or a pair of scissors.
Embodiment 2
The full working lining ultrathin saw bit of the radial positioning distribution of diamond, saw blade diameter of phi 300mm, thickness 1.2mm, mounting hole Φ 20mm, carcass metal dust prescription quality ratio:Cobalt powder -65%, nickel powder -5%, iron powder -5%, titanium valve -2%, chromium powder - 3%th, copper powder -15%, glass putty -5%, powder size are 325 mesh (45 microns) with thin;Diamond volume concentration is 5%, granularity For 40/80 mesh (180-380 microns).
Its fabrication processing is:
1. Alloy-steel mold, steel alloy pressure head and graphite jig processing.
2. carcass metal dust batch mixing, volume fraction are 50% wetting agent and diamond particles.
3. the carcass metal dust mixed loads in Alloy-steel mold, is placed on ultrasonic activation platform and vibrates 2 points Clock, vibration frequency is 30000Hz.
4. the Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, take out pressed compact, smeared and paste diamond Then pressed compact is assembled in graphite jig by grain in the hole of corresponding radial positioning distributed architecture.
5. the graphite jig for installing saw blade cold pressing base is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 980 DEG C, 35KN is forced into, heat-insulation pressure keeping work is then carried out, holding temperature is 790 DEG C, dwell pressure is 25KN, soaking time is 4 points Clock, reaches thermal requirements, and the demoulding is taken out after being gone with stove is cold.
6. the saw blade blank for sintering completion is lain in into the finishing plane of rubbing down two on grinding machine.
7. the saw blade blank for repairing complete two plane of rubbing down is carried out into end face using blade grinding machine to put the first edge on a knife or a pair of scissors.
8. saw blade cleaning treatment and packed for standby use of painting after the completion of putting the first edge on a knife or a pair of scissors.

Claims (6)

1. the full working lining ultrathin saw bit of the radial positioning distribution of diamond, it is characterised in that:Saw blade is by carcass working lining and installation Hole is constituted, and mounting hole is at the center of saw blade, a diameter of 10~800mm of saw blade, 0.2~2.5mm of thickness, and carcass working lining is from gold It is raw material to belong to powder and diamond;Diamond uses radial positioning distributed architecture.
2. the full working lining ultrathin saw bit of the radial positioning distribution of diamond according to claim 1, it is characterised in that:It is described The radial positioning distributed architecture of diamond, be in working lining to make some the line of cuts, mistake by the center of circle of saw blade central point Central point radially makees some radioactive ray, and diamond particles are arranged on the intersection point of the line of cut and radioactive ray.
3. the full working lining ultrathin saw bit manufacture craft of the radial positioning distribution of diamond according to claim 1, its feature It is:
The first step:Mould prepares
According to saw blade size, cold stamping die is designed and processed from steel alloy, wherein steel pressure head is to ensure that diamond is radial Distributed architecture is positioned, is processed using laser engraving method or electric spark method;It is more than 1.85g/cm from bulk density3, compression strength The graphite design and processing sintering mold of high intensity high-purity high-density more than 45MPa;
Second step:Carcass powder is mixed
Up-to-standard required metal dust is weighed, the wetting agent that addition volume fraction is 30% to 80% is simultaneously well mixed, and is obtained To well mixed carcass metal dust compound;
3rd step:Vibrate cloth powder die-filling
Well mixed carcass metal dust compound is weighed, loading is placed on ultrasonic wave or other high-frequency shaking platforms In cold stamping die, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency be 800Hz extremely 100000Hz, is assembled after steel pressure head, is moved to extrusion forming on forcing press and is obtained superthin section pressed compact;
4th step:Diamond positioning distribution
The superthin section pressed compact obtained using steel pressure head cold moudling, pressure embryo, which leaves, meets the radial positioning distributed architecture of diamond Placement hole, by pressed compact from punching block take out, using smear mounting method by diamond particles be placed in hole in, be made contain diamond particles Ultrathin saw bit pressed compact;
5th step:Powder metallurgy pressure sintering is manufactured
The ultrathin saw bit pressed compact of diamond particles will be implanted into, is assembled in graphite jig, is placed in saw blade sintering furnace, first passes through and adds Temperature pressurization, temperature is stepped up to 900 DEG C to 980 DEG C, and pressure progressively adds to 25KN to 40KN, is then cooled to 700 DEG C to 790 DEG C, 15KN to 25KN is depressurized to, heat-insulation pressure keeping is carried out 2 minutes to 8 minutes, hot-pressing flow is completed;
6th step:Cooling and demolding
The graphite jig equipped with sintered saw bits completed after sintering process and cooling is taken out out of sintering furnace, and the demoulding obtains gold The full working lining ultrathin saw bit blank of the radial positioning distribution of hard rock;
7th step:Reconditioning is put the first edge on a knife or a pair of scissors
The radial positioning of diamond is distributed full working lining ultrathin saw bit blank, processing on grinding machine is flat on and polishes saw blade two and put down Face;Then its monolithic or multi-disc are arranged on saw blade blade grinding machine, carry out end face and put the first edge on a knife or a pair of scissors;
8th step:Decoration packaging
The full working lining ultrathin saw bit of the radial positioning distribution of diamond after surface rubbing and end face are put the first edge on a knife or a pair of scissors, is carried out at outward appearance Reason, is put in storage stand-by.
4. the full working lining ultrathin saw bit of the radial positioning distribution of diamond according to claim 3, it is characterised in that:Step Contain cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, copper powder and glass putty in carcass metal dust described in two;Wherein:Cobalt powder, nickel powder, iron Powder, titanium valve and chromium powder respectively account for the 2%~80% of gross mass;Copper powder and glass putty respectively account for the 3%~60% of gross mass;Powder grain used Footpath is below 0.075mm.
5. the full working lining ultrathin saw bit of the radial positioning distribution of diamond according to claim 3, it is characterised in that:Step Vibration cloth powder described in three is die-filling, and steel alloy grinding tool is placed on into ultrasonic wave or other high-frequency shaking platforms when cloth powder is die-filling Upper vibration 1~8 minute, vibration frequency is 20000Hz to 80000Hz, and shaking platform is vibrated using ultrasonic wave or other high-frequencies Source produces exciting force.
6. the full working lining ultrathin saw bit of the radial positioning distribution of diamond according to claim 3, it is characterised in that:Step Diamond positioning distribution described in four, the diamond volume concentration used is 2%~60%, and particle diameter is 0.04~1.0mm;Gold Hard rock particle plants the precalculated position in carcass by radial positioning distributed architecture, and precalculated position is to utilize laser engraving method or electricity Spark technique processes the steel pressure head of cold moudling, and precalculated position, cold moudling pressure are determined with the concavo-convex hole position on steel pressure head surface The pit of base is that at diamond particles implantation, diamond particles are placed in hole using mounting method is smeared.
CN201710540779.XA 2017-07-05 2017-07-05 The radial positioning of diamond is distributed the manufacture craft of full working lining ultrathin saw bit Active CN107262821B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115229193A (en) * 2022-07-21 2022-10-25 北京爱克瑞特金刚石工具有限公司 Preparation method and application of full-powder saw blade

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Publication number Priority date Publication date Assignee Title
US20040112359A1 (en) * 1997-04-04 2004-06-17 Chien-Min Sung Brazed diamond tools and methods for making the same
US20070051354A1 (en) * 1997-04-04 2007-03-08 Chien-Min Sung Brazed diamond tools and methods for making the same
CN101376234A (en) * 2007-08-28 2009-03-04 侯家祥 Ordered arrangement method for abrading agent granule on abrading tool and abrading tool
CN101637821A (en) * 2008-07-28 2010-02-03 丹阳华昌钻石工具制造有限公司 Diamond orderly-arranged ultra-thin cold-rolled sintered tablet
CN201415444Y (en) * 2009-04-17 2010-03-03 上海钻圣和新材料科技有限公司 Cutter head with orderly arranged diamonds
CN101745877A (en) * 2009-12-16 2010-06-23 南京航空航天大学 Diamond grinding material sequential arraying system and method
CN201519908U (en) * 2009-11-17 2010-07-07 郭和惠 Multi-layer uniformly-distributed diamond cold-pressing sintering sawblade
CN102198641A (en) * 2011-05-12 2011-09-28 沈阳理工大学 Super-hard abrasive grinding wheel with head face having abrasives in phyllotaxis arrangement and production method thereof
CN202006517U (en) * 2010-07-06 2011-10-12 上海晶泉工贸有限公司 Caking type diamond cutting blade
CN103056450A (en) * 2011-10-22 2013-04-24 湖南飞越新材料科技有限责任公司 Manufacture method evenly distributing and orderly arranging diamond saw blades

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040112359A1 (en) * 1997-04-04 2004-06-17 Chien-Min Sung Brazed diamond tools and methods for making the same
US20070051354A1 (en) * 1997-04-04 2007-03-08 Chien-Min Sung Brazed diamond tools and methods for making the same
CN101376234A (en) * 2007-08-28 2009-03-04 侯家祥 Ordered arrangement method for abrading agent granule on abrading tool and abrading tool
CN101637821A (en) * 2008-07-28 2010-02-03 丹阳华昌钻石工具制造有限公司 Diamond orderly-arranged ultra-thin cold-rolled sintered tablet
CN201415444Y (en) * 2009-04-17 2010-03-03 上海钻圣和新材料科技有限公司 Cutter head with orderly arranged diamonds
CN201519908U (en) * 2009-11-17 2010-07-07 郭和惠 Multi-layer uniformly-distributed diamond cold-pressing sintering sawblade
CN101745877A (en) * 2009-12-16 2010-06-23 南京航空航天大学 Diamond grinding material sequential arraying system and method
CN202006517U (en) * 2010-07-06 2011-10-12 上海晶泉工贸有限公司 Caking type diamond cutting blade
CN102198641A (en) * 2011-05-12 2011-09-28 沈阳理工大学 Super-hard abrasive grinding wheel with head face having abrasives in phyllotaxis arrangement and production method thereof
CN103056450A (en) * 2011-10-22 2013-04-24 湖南飞越新材料科技有限责任公司 Manufacture method evenly distributing and orderly arranging diamond saw blades

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115229193A (en) * 2022-07-21 2022-10-25 北京爱克瑞特金刚石工具有限公司 Preparation method and application of full-powder saw blade

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