CN107420048A - The equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft - Google Patents
The equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft Download PDFInfo
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- CN107420048A CN107420048A CN201710540812.9A CN201710540812A CN107420048A CN 107420048 A CN107420048 A CN 107420048A CN 201710540812 A CN201710540812 A CN 201710540812A CN 107420048 A CN107420048 A CN 107420048A
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- powder
- diamond
- superthin
- drill bit
- working lining
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- 239000010432 diamond Substances 0.000 title claims abstract description 70
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000009826 distribution Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 76
- 238000000926 separation method Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims abstract description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 14
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000009472 formulation Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010892 electric spark Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000010147 laser engraving Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 201000009240 nasopharyngitis Diseases 0.000 claims description 2
- 235000020610 powder formula Nutrition 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000004913 activation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
- Earth Drilling (AREA)
Abstract
The equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft, the equidistant shape positioning of diamond of the present invention are distributed superthin layer composite drill bit and its manufacture craft, and being combined into drill bit by carcass working lining superthin section and separation layer superthin section bores tooth；Carcass working lining superthin section uses metal dust and tungsten-carbide powder as raw material, and separation layer superthin section uses graphite powder, carborundum powder, alumina powder and ceramic powder as raw material；The cold moudling of working lining superthin section is using equidistant shape 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, ensure its thickness uniformity, superthin section pressed compact is obtained through cold moudling；Superthin section pressed compact is assembled into tooth is bored, tooth will be bored and drilling bit steel body is integral by intermediate frequency furnace hot pressed sintering, it is machined that drill bit is made.The composite drill bit that the present invention obtains, operating efficiency height, long lifespan, energy consumption are low when creeping into hard rock.
Description
Technical field
The present invention principally falls into field of machining, using PM technique, is positioned and is distributed using diamond, by super
Sound wave or other high-frequency vibration modes, more particularly to the equidistant shape positioning distribution superthin layer composite drill bit of diamond and its making work
Skill.
Background technology
During conventional PCD drill makes, the problem of metal dust and more diamond dosage be present, waste material, and tire
In body diamond random distribution, cause diamond to play effect completely, in bit operation, exist drilling resistance it is big,
The problems such as power consumption is high and efficiency is low, so as to limit the using effect of diamond bit, the using effect particularly in hard rock,
It also counteracts that the development of diamond drilling technology.
The content of the invention
It is an object of the invention to provide a kind of equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft.
A kind of equidistant shape positioning distribution superthin layer composite drill bit of diamond, it is ultra-thin for 0.1~1.0mm working lining by thickness
Piece and thickness are the brill tooth that 0.1~1.0mm separation layer superthin sections are combined into drill bit；Working lining superthin section carcass uses metal dust
It is raw material with diamond, separation layer superthin section uses graphite powder, carborundum powder, alumina powder and ceramic powder as raw material；Working lining
Diamond particles in superthin section are using equidistant shape positioning distributed architecture, and heeling-in is in carcass precalculated position；Superthin layer composite drill bit
Synthesized by brill tooth and drilling bit steel body.
The diamond particles of superthin layer composite drill bit are distributed in equidistant shape positioning distributed architecture around a diamond
There are some equidistant diamonds.The distance between diamond determines by drill bit size and working lining diamond concentration, typically
At intervals of 0.05~3.0mm.
The manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond, comprises the following steps：
The first step：Mould and steel body prepare
According to bit size, cold stamping die is designed and processed from superior alloy steel, wherein steel pressure head is according to design requirement
Ensure that diamond in equidistant shape positioning distributed architecture, is processed using laser engraving method or electric spark method；From high intensity high-purity
Highdensity graphite design and processing sintering mold；From 45#Steel processes drilling bit steel body；
Second step：Carcass powder mixes
Up-to-standard required metal dust, tungsten-carbide powder are weighed, adds the wetting that volume fraction is 30% to 80%
Agent is well mixed, and obtains well mixed working lining powder mixture；
3rd step：Separation layer batch mixing
Up-to-standard graphite powder, carborundum powder, alumina powder, ceramic powder isolating layer material are weighed, adds volume fraction
It is well mixed for 30% to 80% wetting agent, obtains well mixed separation layer powder mixture；
4th step：It is die-filling to vibrate cloth
Well mixed working lining powder is weighed, loads the cold pressing being placed on ultrasonic wave or other high-frequency shaking platforms
In mould, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency be 800Hz extremely
100000Hz, after assembling steel pressure head, move to extrusion forming on forcing press and obtain carcass working lining superthin section pressed compact；Weigh mixing
Uniform separation layer powder is fitted into cold stamping die, starts ultrasonic wave or other high-frequency shaking platforms vibrate 0.5~10 minute,
Vibration frequency is 800Hz to 100000Hz, then moves to extrusion forming on forcing press and obtains separation layer superthin section pressed compact；
5th step：Diamond positioning distribution
The working lining superthin section pressed compact obtained using steel pressure head cold moudling, it, which leaves, meets that diamond positions in equidistant shape
The placement hole of distributed architecture, working lining superthin section pressed compact is taken out from punching block, is implanted into diamond particles using mounting method is smeared
In hole, the working lining superthin section pressed compact containing diamond particles is made；
6th step：Powder metallurgic method manufactures.The working lining superthin section pressed compact and separation layer that are implanted into diamond particles is ultra-thin
Piece pressed compact, according to working lining superthin section pressed compact-separation layer superthin section pressed compact-working lining superthin section pressed compact-separation layer superthin section
Pressed compact-... the order assembling of-working lining superthin section pressed compact, and drilling bit steel body is prepared, it is placed in intermediate frequency furnace, first passes through heating
Pressurization, temperature are 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, carries out heat-insulation pressure keeping 2 minutes to 8 minutes, completes hot-pressing flow；
7th step：Cooling and demolding
The graphite jig component of intermediate frequency furnace is placed on, process to be sintered is taken out from graphite mo(u)ld after terminating and cooling down and obtains gold
The equidistant shape positioning distribution superthin layer composite drill bit blank of hard rock；
8th step：Machining
By the equidistant shape positioning distribution superthin layer composite drill bit blank of diamond, screw thread processing, water are carried out according to relevant standard
Saliva groove processing, that is, it is stand-by that drill bit is made.
Described in step 2 carcass powder formula in containing cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, manganese powder, copper powder, glass putty,
Tungsten carbide powder；Wherein：Cobalt powder, nickel powder, iron powder, manganese powder, titanium valve and chromium powder respectively account for the 2%~70% of gross mass；Copper powder and glass putty
Respectively account for the 3%~50% of gross mass；Tungsten carbide powder accounts for the 0%~50% of gross mass；Powder diameter used is below 0.075mm.
Graphitiferous powder, carborundum powder, alumina powder, ceramic powder in separation layer powder formulation described in step 3；Wherein stone
Ink powder accounts for the 5%~90% of gross mass, and particle diameter is below 0.1mm；Carborundum powder, alumina powder, ceramic powder respectively account for gross mass
2%~50%, particle diameter is below 0.1mm.
Vibration cloth described in step 4 is die-filling, and steel alloy grinding tool is placed on into ultrasonic wave when cloth powder is die-filling or other are high
Vibrated 1~8 minute on frequency shaking platform, vibration frequency is 20000Hz to 80000Hz, shaking platform using ultrasonic wave or its
He provides exciting force by high-frequency vibration source.
The equidistant shape positioning distribution of diamond described in step 5, the diamond volume concentration used is 5%~50%, grain
Footpath is 0.045~0.60mm.Diamond particles plant the pre-determined bit in ultra-thin working lining carcass by equidistant shape positioning distributed architecture
Put, precalculated position is the steel pressure head using laser engraving method or electric spark method processing cold moudling, with the bumps on steel pressure head surface
Position is cheated to determine precalculated position, the ultra-thin working lining pressed compact pits of cold moudling are at diamond particles implantation, are used
Smear mounting method diamond particles are placed in hole.
The equidistant shape positioning distribution superthin layer composite drill bit of diamond of the present invention is mainly characterized by：Using ultrasonic wave or its
His high-frequency vibration cloth powder means are beneficial to the homogenization of powder；Diamond implantation position abandons conventional random distribution form, and
Equidistant shape location structure is performed, the effect of having given full play to diamond；Using powder metallurgy pressure sintering in temperature of the present invention
Superthin layer composite drill bit is made under degree and pressure process, the performance indications of superthin layer composite drill bit can be reached, drill bit is by some thickness
The working lining superthin section and separation layer superthin section for spending 0.1~1.0mm are combined, and sintered or method for laser welding is welded on brill
Saw superthin layer composite drill bit is made in head steel body, hence it is evident that improve the operating efficiency of drill bit.
Brief description of the drawings
The equidistant shape of diamond that Fig. 1 is the present invention positions distribution schematic diagram.
Embodiment
Embodiment 1
The equidistant shape positioning distribution superthin layer composite drill bit of diamond, external diameter/internal diameter is Φ 76/49mm, and bit matrix works
The ultra-thin chip size of layer：Length × height × thickness=22/12mm × 12mm × 0.3mm；The ultra-thin chip size of separation layer：Long × high × thick=
22/12mm × 12mm × 0.2mm, single locking nub contain 27 layers of working lining superthin section and 26 layers of separation layer superthin section, bore tooth composition saw
Segment block size is length × height × thickness=22/12mm × 12mm × 13.5mm.
Working lining superthin section carcass metal formulations mass ratio：Cobalt powder -60%, nickel powder -5%, titanium valve -2%, chromium powder -
3%th, copper powder -20%, glass putty -5%, tungsten carbide powder -5%, powder size are 325 mesh (45 microns) with thin；Diamond volume
Concentration is 15%, and granularity is 35/60 mesh (425-250 microns).
Separation layer superthin section power formulations mass ratio：Graphite powder -70%, carborundum powder -10%, alumina powder -10%,
Ceramic powder -10%, particle diameters are 325 mesh (45 microns) with thin.
Its fabrication processing is：
1. Alloy-steel mold, graphite jig, drilling bit steel body are processed.
2. working lining superthin section carcass powder and diamond batch mixing；Separation layer powder batch mixing, volume fraction are 55% profit
Humectant.
3. the carcass powder mixed loads in Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 1 minute, shake
Dynamic frequency is 30000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, takes out pressed compact, smears and pastes gold
Working lining superthin section pressed compact is standby, and diamond is equidistant in the corresponding hole for positioning distributed architecture in equidistant shape, obtaining for hard rock particle
Shape positioning distribution is as shown in Figure 1.
4. the separation layer powder mixed loads in Alloy-steel mold, it is placed on the ultrasonic activation platform that shakes and vibrates 1 point
Clock, vibration frequency 30000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, obtains and takes out isolation
Layer superthin section pressed compact is standby.
5. it is assembled in graphite mo(u)ld according to 27 working lining superthin section pressed compacts and 26 separation layer superthin section pressed compact space crossings
In tool, pressed compact will be installed and prepare the graphite jig of steel body it is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 970 DEG C,
35KN is forced into, then carries out heat-insulation pressure keeping work, holding temperature is 790 DEG C, dwell pressure 25KN, and soaking time is 5 points
Clock, reach thermal requirements, the demoulding is taken out after being gone with stove is cold.
6. the drill bit blank completed will be sintered, it is machined in the equipment such as lathe, processes screw thread, the mouth of a river, water
After groove etc., cleaning packing processes are stand-by.
Embodiment 2
Diamond equidistant shape positioning distribution superthin layer composite drill bit, external diameter/internal diameter are Φ 101.6/84mm, bit matrix work
Make the ultra-thin chip size of layer：Length × height × thickness=25/19.5mm × 14mm × 0.4mm；The ultra-thin chip size of separation layer：It is long × high × thick
=29/19.5mm × 14mm × 0.3mm, single locking nub contain 13 layers of working lining superthin section and 12 layers of separation layer superthin section, bore tooth group
It is length × height × thickness=25/19.5mm × 14mm × 8.5mm into saw blade locking nub size.
Working lining superthin section carcass metal formulations mass ratio：Cobalt powder -50%, nickel powder -10%, manganese powder -3%, copper powder -
17%th, glass putty -5%, tungsten carbide powder -15%, powder size are 325 mesh (45 microns) with thin；Diamond volume concentration is
18%, granularity is 30/50 mesh (550-270 microns).
Separation layer superthin section power formulations mass ratio：Graphite powder -85%, carborundum powder -5%, alumina powder -5%, pottery
Porcelain powder -5%, particle diameters are 325 mesh (45 microns) with thin.
Its fabrication processing is：
1. Alloy-steel mold, graphite jig, drilling bit steel body are processed.
2. working lining superthin section carcass powder batch mixing；Separation layer powder batch mixing, volume fraction are 55% wetting agent.
3. the carcass powder mixed loads in Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 0.5 minute,
Vibration frequency is 25000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, takes out pressed compact, smears and pastes
It is standby to obtain working lining superthin section pressed compact in the corresponding hole for positioning distributed architecture in equidistant shape for diamond particles.
4. the separation layer powder mixed loads in Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 0.5 point
Clock, vibration frequency 25000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, obtains and takes out isolation
Layer superthin section pressed compact is standby.
5. it is assembled in graphite mo(u)ld according to 13 working lining superthin section pressed compacts and 12 separation layer superthin section pressed compact space crossings
In tool, pressed compact will be installed and prepare the graphite jig of steel body it is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 970 DEG C,
35KN is forced into, then carries out heat-insulation pressure keeping work, holding temperature is 790 DEG C, dwell pressure 25KN, and soaking time is 4 points
Clock, reach thermal requirements, the demoulding is taken out after being gone with stove is cold.
6. the drill bit blank completed will be sintered, it is machined in the equipment such as lathe, processes screw thread, the mouth of a river, water
It is stand-by after cleaning packing processes after groove etc..
Claims (7)
1. the equidistant shape positioning distribution superthin layer composite drill bit of diamond, it is characterised in that：By the work that thickness is 0.1~1.0mm
Layer superthin section and thickness are the brill tooth that 0.1~1.0mm separation layer superthin sections are combined into drill bit；Working lining superthin section carcass is using gold
It is raw material to belong to powder and diamond, and separation layer superthin section uses graphite powder, carborundum powder, alumina powder and ceramic powder as raw material；
Diamond particles in working lining superthin section are using equidistant shape positioning distributed architecture, and heeling-in is in carcass precalculated position；Superthin layer is answered
Bench drill head is synthesized by brill tooth and drilling bit steel body.
2. the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 1, it is characterised in that：Superthin layer
The diamond particles of composite drill bit in equidistant shape positioning distributed architecture, i.e., be distributed with around a diamond some it is equidistant
Diamond.
3. the equidistant shape positioning of diamond according to claim 1 is distributed superthin layer composite drill bit and its manufacture craft, it is special
Sign is：
The first step：Mould and steel body prepare
According to bit size, designed from superior alloy steel and process cold stamping die, wherein steel pressure head ensures according to design requirement
Diamond is processed in equidistant shape positioning distributed architecture using laser engraving method or electric spark method；It is highly dense from high intensity high-purity
The graphite design and processing sintering mold of degree；From 45#Steel processes drilling bit steel body；
Second step：Carcass powder mixes
Up-to-standard required metal dust and tungsten-carbide powder are weighed, the wetting agent that volume fraction is 30% to 80% is added and mixes
Close uniformly, obtain well mixed working lining powder mixture；
3rd step：Separation layer batch mixing
Up-to-standard graphite powder, carborundum powder, alumina powder and ceramic powder isolating layer material are weighed, adding volume fraction is
30% to 80% wetting agent is well mixed, and obtains well mixed separation layer powder mixture；
4th step：It is die-filling to vibrate cloth
Well mixed working lining powder is weighed, loads the cold stamping die being placed on ultrasonic wave or other high-frequency shaking platforms
In, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency is 800Hz to 100000Hz, group
After installing steel pressure head, move to extrusion forming on forcing press and obtain carcass working lining superthin section pressed compact；Weigh well mixed isolation
Layer powder is fitted into cold stamping die, starts ultrasonic wave or other high-frequency shaking platforms vibrate 0.5~10 minute, vibration frequency is
800Hz to 100000Hz, then move to extrusion forming on forcing press and obtain separation layer superthin section pressed compact；
5th step：Diamond positioning distribution
The working lining superthin section pressed compact obtained using steel pressure head cold moudling, it, which leaves, meets diamond in the positioning distribution of equidistant shape
The placement hole of structure, working lining superthin section pressed compact is taken out from punching block, diamond particles are implanted into hole using mounting method is smeared,
The working lining superthin section pressed compact containing diamond particles is made；
6th step：Powder metallurgic method manufactures
The working lining superthin section pressed compact and separation layer superthin section pressed compact of diamond particles will be implanted into, according to working lining superthin section pressure
Base-separation layer superthin section pressed compact-working lining superthin section pressed compact-separation layer superthin section pressed compact-...-working lining superthin section
The order assembling of pressed compact, and drilling bit steel body is prepared, it is placed in intermediate frequency furnace, first passes through temperature-pressure, temperature is stepped up to 900 DEG C
To 980 DEG C, pressure progressively adds to 25KN to 40KN, is then cooled to 700 DEG C to 790 DEG C, is depressurized to 15KN to 25KN, is protected
Warm pressurize 2 minutes to 8 minutes, complete hot-pressing flow；
7th step：Cooling and demolding
The graphite jig component of intermediate frequency furnace is placed on, process to be sintered is taken out from graphite mo(u)ld after terminating and cooling down and obtains diamond
Equidistant shape positioning distribution superthin layer composite drill bit blank；
8th step：Machining
By the equidistant shape positioning distribution superthin layer composite drill bit blank of diamond, screw thread processing, mouth of a river water are carried out according to relevant standard
Groove processing, that is, superthin layer composite drill bit is made.
4. the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 3, it is characterised in that：Step 2
Described carcass powder formula is cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, manganese powder, copper powder, glass putty and tungsten carbide powder；Wherein：Cobalt
Powder, nickel powder, iron powder, manganese powder, titanium valve and chromium powder respectively account for the 2%~70% of gross mass；Copper powder and glass putty respectively account for gross mass 3%~
50%；Tungsten carbide powder accounts for the 0%~50% of gross mass；Powder diameter used is below 0.075mm.
5. the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 3, it is characterised in that：Step 3
Described separation layer powder formulation is graphite powder, carborundum powder, alumina powder and ceramic powder；Wherein graphite powder accounts for gross mass
5%~90%, particle diameter is below 0.1mm；Carborundum powder, alumina powder, ceramic powder respectively account for the 2%~50% of gross mass, particle diameter
For below 0.1mm.
6. the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 3, it is characterised in that：Step 4
Described in vibration cloth it is die-filling, steel alloy grinding tool is placed on ultrasonic wave or other high-frequency shaking platforms when cloth powder is die-filling
Vibration 1~8 minute, vibration frequency is 20000Hz to 80000Hz, and shaking platform uses ultrasonic wave or other high-frequency vibration sources
Exciting force is provided.
7. the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 3, it is characterised in that：Step 5
Described in the positioning distribution of diamond equidistant shape, the diamond volume concentration used is 5%~50%, particle diameter is 0.045~
0.60mm, diamond particles plant the precalculated position in ultra-thin working lining carcass, precalculated position by equidistant shape positioning distributed architecture
It is the steel pressure head using laser engraving method or electric spark method processing cold moudling, is determined with the concavo-convex hole position on steel pressure head surface
Precalculated position, the ultra-thin working lining pressed compact pits of cold moudling are at diamond particles implantation, are incited somebody to action using mounting method is smeared
Diamond particles are placed in hole.
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| CN101376234A (en) * | 2007-08-28 | 2009-03-04 | 侯家祥 | Ordered arrangement method for abrading agent granule on abrading tool and abrading tool |
| US20130081882A1 (en) * | 2011-09-30 | 2013-04-04 | Diamond Innovations, Inc. | Method of characterizing a material using three dimensional reconstruction of spatially referenced characteristics and use of such information |
| CN203334966U (en) * | 2013-05-21 | 2013-12-11 | 金川集团股份有限公司 | Layered die block of diamond bit and bit body of diamond bit |
| CN205823170U (en) * | 2016-07-01 | 2016-12-21 | 湖北大好工具有限公司 | A kind of diamond compact bit |
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2017
- 2017-07-05 CN CN201710540812.9A patent/CN107420048B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376234A (en) * | 2007-08-28 | 2009-03-04 | 侯家祥 | Ordered arrangement method for abrading agent granule on abrading tool and abrading tool |
| US20130081882A1 (en) * | 2011-09-30 | 2013-04-04 | Diamond Innovations, Inc. | Method of characterizing a material using three dimensional reconstruction of spatially referenced characteristics and use of such information |
| CN203334966U (en) * | 2013-05-21 | 2013-12-11 | 金川集团股份有限公司 | Layered die block of diamond bit and bit body of diamond bit |
| CN205823170U (en) * | 2016-07-01 | 2016-12-21 | 湖北大好工具有限公司 | A kind of diamond compact bit |
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