CN103522014A - Laser combination welding thick-wall diamond bit manufacturing method - Google Patents
Laser combination welding thick-wall diamond bit manufacturing method Download PDFInfo
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- CN103522014A CN103522014A CN201310481126.0A CN201310481126A CN103522014A CN 103522014 A CN103522014 A CN 103522014A CN 201310481126 A CN201310481126 A CN 201310481126A CN 103522014 A CN103522014 A CN 103522014A
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 88
- 239000010432 diamond Substances 0.000 title claims abstract description 88
- 238000003466 welding Methods 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000005245 sintering Methods 0.000 claims abstract description 22
- 238000007731 hot pressing Methods 0.000 claims abstract description 12
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 7
- 238000005219 brazing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 18
- 238000007514 turning Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 238000005496 tempering Methods 0.000 abstract 2
- 238000007598 dipping method Methods 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 4
- 229910001573 adamantine Inorganic materials 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/025—Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware
-
- 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a laser combination welding thick-wall diamond bit manufacturing method. By means of the technological process, a diamond bit embryo tooth of a multi-layer structure manufactured through a cold-pressing method is adopted, a diamond bit tooth shaped and manufactured through a hot-pressing sintering method is adopted, and a laser welding method is used for welding a plurality of diamond bit teeth coaxially on one end of a thick-wall steel pipe, wherein the circumference of each diamond bit tooth is equally divided and the circumferences of the diamond bit teeth are evenly distributed; after the welding process is conducted, the tempering process is conducted on the diamond bit teeth, a CO2 filler rod protecting welding or high-frequency brazing welding method is used for enhancing the welding strength between the diamond bit teeth and the thick-wall steel pipe, after the welding process is conducted, the tempering process is conducted on the diamond bit teeth and the thick-wall steel pipe, machining in relative size is conducted on the thick-wall steel pipe, and a finished bit is manufactured. Compared with existing sintering methods such as the medium frequency hot pressing sintering method, a resistance hot-pressing sintering method and a no-pressure dipping method, the cost of sintering molds for the laser combination welding thick-wall diamond bit manufacturing method can be reduced by 60 %, energy consumption can be reduced by 58 %, and overall efficiency can be improved by 50 %. Compared with an existing electrochemical plating method, the laser combination welding thick-wall diamond bit manufacturing method removes environmental-protection and recycling cost or heavy metal ions, or does not have environment pollution problems.
Description
(1) technical field:
The present invention relates to the manufacture method of all kinds of geological prospectings, engineering exploration use diamond bit, be specially a kind of laser in combination welding heavy wall diamond drill machine method for making head.
(2) background technology:
Heavy wall diamond bit is a kind of of diamond tool, its principal character is to be connected with diamond bit tooth in one end of thick walled steel tube, the other end is processed with screw thread and is connected with basket, and drill bit and basket are carved and got rock and realize and creeping under the revolution torsion of rig and axial compressive force effect.
The manufacture method of existing diamond bit be take intermediate-frequency hot-pressing sintering process, resistance hot pressing sintering method, pressureless impregnation method, galvanoplastic as main.
The technological process of described intermediate-frequency hot-pressing sintering process is: drill bit design, calculate powder and adamantine consumption---powder mixes with adamantine weighing---and prepare the fuse of whole graphite jig, foundation ring,---the diamond powder weigh mixing is assembled in whole graphite jig, and---thick walled steel tube processing and powder contact-making surface are processed---intermediate-frequency hot-pressing sintering---in incubator 12 hours slowly cooling---exits graphite external mold to mouth of a river piece, fuse, mouth of a river piece---heavy wall diamond bit finished product processing.
Visible, the graphite jig cost of sintering process is high, electric energy consumption cost is also very high.
And high cost is recycled in the environmental protection that the problem that galvanoplastic exist is heavy metal ion.
(3) summary of the invention:
Weak point for existing manufacturing technology; the present invention proposes a kind of laser in combination welding heavy wall diamond drill machine method for making head; to solve the problem that heavy wall geological drill bit sintering process die cost is high, energy consumption is large, work efficiency is low, and high cost and problem of environmental pollution are recycled in the environmental protection of galvanoplastic heavy metal ion.
The laser in combination welding heavy wall diamond drill machine method for making head that can address the above problem, the technological process of taking is:
1, adopt cold-press method to manufacture the diamond bit embryo tooth of sandwich construction.
2, adopt hot pressing sintering method to manufacture the diamond bit tooth of moulding.
3, adopt method for laser welding the uniform diamond bit tooth coaxial welding of some circumference equal dividings the one end at thick walled steel tube.
4, postwelding temper.
5, adopt CO
2protection weldering or the high frequency brazing method of filling silk strengthened the weld strength of diamond bit tooth and thick walled steel tube.
6, postwelding temper.
7, thick walled steel tube is carried out the machining of relative dimensions and produces drill bit finished product.
In heavy wall diamond bit series, the inner and outer diameter of serial thick walled steel tube is between 36mm～400mm, and the heavy wall of same thick walled steel tube is between 8mm～25mm.
Corresponding, the interior outer radius of series diamond bit tooth between 18mm～200mm, inside and outside chord length between 10mm～40mm, height between 8mm～30mm, the inside and outside semidiameter of same diamond bit tooth between 8mm～25mm, inside and outside chord length is poor between 3mm～15mm.
Described diamond bit tooth adopts three layered material structures radially, the diamond consumption of layered material in the diamond consumption > bit teeth of the outer layered material of diamond consumption > bit teeth of bit teeth middle material.
The technological parameter of described laser weld: weld Shen Du≤7mm, bonding power is chosen between 1KW～2.3KW, 5 ° of incidence angle <, spot diameter is between ￠ 0.15mm～￠ 0.25mm, laser focal is between 170mm～173mm, and in facula deviation amount, bit teeth and steel body are between 5.5:4.5～6.5:3.5; During welding, thick walled steel tube turning spur speed is between 0.6 m/min～2 ms/min.
Described CO
2the technological parameter that the protection that fills silk is welded: gage of wire is between ￠ 0.8mm～￠ 1.2mm, and welding current is chosen between 50A～280A, and during welding, the turning spur speed of thick walled steel tube is between 6 ms/min～9 ms/min.
The technological parameter of described high frequency brazing: silver soldering sheet thickness is between 0.2mm～0.6mm, and welding temperature is between 650 ℃～750 ℃, and the power selection of single diamond bit tooth heating is between 5KW～10KW, and temperature retention time is between 5 seconds～10 seconds.
Advantage of the present invention:
1, the sintering process such as laser in combination of the present invention welding heavy wall diamond drill machine method for making head and existing intermediate-frequency hot-pressing sintering process, resistance hot pressing sintering method, pressureless impregnation method is compared, the cost of sintering mold can reduce by 60%, energy consumption can reduce by 58%, and whole efficiency still can improve 50%; Compare with existing galvanoplastic, can exempt the environmental protection of heavy metal ion and recycle cost, or non-environmental-pollution problem.
2, the present invention provides a kind of environmental protection, efficient, energy-conservation, manufacture method cheaply with diamond bit for geological prospecting, engineering exploration.
(4) accompanying drawing explanation:
Fig. 1 (a) is the structural representation of the heavy wall diamond bit with manufacture method manufacture of the present invention.
A-A cutaway view in Fig. 1 (b) Fig. 1 (a).
Fig. 2 is the diamond bit embryo pressure schematic diagram of laughing somebody to scorn in manufacturing process flow of the present invention.
Fig. 3 is diamond bit tooth hot pressed sintering schematic diagram in manufacturing process flow of the present invention.
Fig. 4 is the structural representation of Fig. 1 medium thickness pipe.
Fig. 5 (a) is the structural representation of laser weld in manufacturing process flow of the present invention with stationary fixture.
Fig. 5 (b) bores the structural representation of tooth equal dividing and positioning mould in Fig. 5 (a).
Fig. 6 is CO in manufacturing process flow of the present invention
2the structural representation of protection weldering with stationary fixture fills silk.
Figure number sign: 1, diamond bit tooth; 2, thick walled steel tube; 3, side form; 4, backing plate; 5, internal diameter pressure head; 6, layered material in bit teeth; 7, bit teeth middle material; 8, the outer layered material of bit teeth; 9, external diameter pressure head; 10, recessed dividing plate; 11, inclined clapboard; 12, median septum; 13, sintering pressing plate; 14, strong magnets; 15, welding pressing plate; 16, bore tooth equal dividing and positioning mould; 17, the bit teeth sword positioning module of going out; 18, scroll chuck; 19, bore tooth and be welded and fixed mould; 20, thimble.
(5) specific embodiment:
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.
The technological process of laser in combination welding heavy wall diamond drill machine method for making head of the present invention is: (preparation is before drill bit design to the diamond bit embryo tooth of employing cold-press method manufacture sandwich construction, calculate powder and adamantine consumption, powder mixes with adamantine weighing)---adopt hot pressing sintering method to manufacture the diamond bit tooth 1 of moulding and---adopt method for laser welding that uniform diamond bit tooth 1 coaxial welding of some circumference equal dividings is adopted to CO in one end of thick walled steel tube 2---postwelding temper---
2protection weldering or the high frequency brazing method of filling silk strengthened diamond bit tooth 1 and with the weld strength---postwelding temper---of thick walled steel tube 2, thick walled steel tube carried out the machining of relative dimensions and produces drill bit finished product.
Diamond bit finished product after machining as shown in Figure 1.
Each technological process detailed annotation:
1, the cold pressing making of diamond bit embryo tooth.
With the bit teeth cold stamping die (tool steel) shown in Fig. 2, manufacture: with left and right side form 3 and forward and backward dividing plate, surround die cavity, with backing plate 4, pave side form 3 and dividing plate, allow the internal diameter pressure head 5 of bottom expose; In the die cavity of internal diameter pressure head 5 ends, pour in the bit teeth that weighs up weight layered material 6 into and shakeout, pour into again and weigh up the bit teeth middle material 7 of weight and shakeout, finally pour into and weigh up the outer layered material 8 of bit teeth of weight and shakeout, the diamond consumption of layered material 6 in the diamond consumption > bit teeth of the outer layered material 8 of diamond consumption > bit teeth of bit teeth middle material 7, the external diameter pressure head 9 at top is put into die cavity corresponding to the outer layered material 8 of bit teeth; With screw rod, tighten side form 3 and dividing plate, mould is taken and on forcing press, flattened internal diameter pressure head 5 and external diameter pressure head 95 seconds of pressurize, take out mould, turn on screw rod, unclamp side form 3 and dividing plate, take out the single diamond bit embryo tooth of cold moudling.
Repeat said process, until several diamond bit embryo teeth of the needs of having colded pressing.
2, the making of sintered diamond bit teeth 1.
With bit teeth hot pressed sintering mould (separate type high strength graphite) shown in Fig. 3, manufacture: by recessed dividing plate 10 and two inclined clapboards 11 and median septum 12, surround die cavity (totally 8 die cavitys, ), with cushion block, pave recessed dividing plate 10, inclined clapboard 11, median septum 12, allow push-down head expose head, in 8 cavitys, put into successively diamond bit embryo tooth, put into successively again pressure head, put into successively again diamond bit embryo tooth, finally put into successively seaming chuck, last screw rod is tightened sintering pressing plate 13 locking die cavitys, take in vacuum resistance furnace, by being warmed up to 870 ℃ of insulations 5 minutes, dwell pressure 220 ㎏/CM
2, vacuum-0.08MPa technique sintering go out the finished product of diamond bit tooth 1.
3, the making of thick walled steel tube 2.
Machining process processes the preferred 45# steel of the thick walled steel tube 2(shown in Fig. 4 routinely).
4, on thick walled steel tube 2, use laser weld diamond bit tooth 1.With the fixing tipped drill tooth of the stationary fixture for laser weld shown in Fig. 5 (a), Fig. 5 (b) (being 45# steel entirely).First strong magnets 14 horizontal positioned, strong magnets 14 is placed welding pressing plate 15 above, welding pressing plate 15 is placed above and is bored tooth equal dividing and positioning mould 16, in the die cavity (circumference uniform distribution 8 deciles) that bores tooth equal dividing and positioning mould 16, put into diamond bit tooth 1 finished product (the solder side of handling well upward), the go out interior nose end of sword positioning module 17 of bit teeth is entangled to the cylindrical that 8 diamond bit teeth 1 form down, the solder side of thick walled steel tube 2 is vertically put into the bit teeth sword positioning module 17 of going out down, finally a whole set of fixture level fixing is taken to tensioning on the scroll chuck 18 of laser-beam welding machine, again the bit teeth sword positioning module 17 of going out is axially sliped off to the faying face that exposes thick walled steel tube 2 and diamond bit tooth 1, by following welding condition, diamond bit tooth 1 and thick walled steel tube 2 are welded together: bonding power is 1.5KW, incidence angle is 3.5 °, spot diameter is ￠ 0.2mm, laser focal is 172mm, in facula deviation amount, bit teeth and steel body are 6:4, thick walled steel tube 2 turning spur speed are 0.8 m/min.
The drill blank having welded is incubated 240 ℃ in baking oven, cooling with stove after being incubated 3 hours.
5, CO
2weld strength is strengthened in the protection weldering that fills silk
With the CO shown in Fig. 6
2the protection weldering that fills silk is fixed on the thick walled steel tube 2 of drill blank on the scroll chuck 18 of lathe with stationary fixture (45# steel), boring tooth, be welded and fixed on the internal-and external diameter that mould 19 is enclosed within the diamond bit tooth 1 weld, then with the thimble 20 of lathe, withstand brill tooth and be welded and fixed mould 19; CO
2the plumb joint that the protection that fills silk is welded is aimed at the soldered (processing in the making of thick walled steel tube 2) between thick walled steel tube 2 and diamond bit tooth 1, by following CO
2fill silk and protect welding parameter, diamond bit tooth 1 and thick walled steel tube 2 are welded: gage of wire is selected ￠ 0.8mm, and welding current is chosen as 65A, during welding, the turning spur speed of thick walled steel tube 2 is 8 ms/min.
The drill blank having welded is put in baking oven and is incubated 270 ℃, cooling with stove after being incubated 3 hours.
6, finished product processing.
Cooling good drill blank routinely machining process process the heavy wall drill bit finished product shown in Fig. 1 (a), Fig. 1 (b) (comprising the screw thread processing that thick walled steel tube 2 other ends are connected with basket), produce a complete heavy wall diamond bit.
The area of bed of diamond drill machine described in the present invention can require according to processing object different, or tool work condition is different and adopt different size design.
In heavy wall diamond bit series of the present invention:
The inner and outer diameter of series thick walled steel tube 2 is 36mm～400mm, and the heavy wall of same thick walled steel tube 2 is 8mm～25mm.
Corresponding, the interior outer radius of serial diamond bit tooth 1 be 18mm～200mm, inside and outside chord length be 10mm～40mm, highly for 8mm～30mm, the inside and outside semidiameter of same diamond bit tooth 1 be 8mm～25mm, inside and outside chord length poor be 3mm～15mm.
Claims (7)
1. laser in combination welds heavy wall diamond drill machine method for making head, it is characterized in that the technological process of taking is:
1., adopt cold-press method to manufacture the diamond bit embryo tooth of sandwich construction;
2., adopt hot pressing sintering method to manufacture the diamond bit tooth (1) of moulding;
3., adopt method for laser welding uniform diamond bit tooth (1) coaxial welding of some circumference equal dividings the one end in thick walled steel tube (2);
4., postwelding temper;
5., adopt CO
2protection weldering or the high frequency brazing method of filling silk strengthened the weld strength of diamond bit tooth (1) and thick walled steel tube (2);
6., postwelding temper;
7., thick walled steel tube (2) is carried out the machining of relative dimensions and produces drill bit finished product.
2. laser in combination welding heavy wall diamond drill machine method for making head according to claim 1, is characterized in that: the inner and outer diameter of serial thick walled steel tube (2) is 36mm～400mm, and the heavy wall of same thick walled steel tube (2) is 8mm～25mm.
3. laser in combination according to claim 2 welds heavy wall diamond drill machine method for making head, it is characterized in that: the interior outer radius of serial diamond bit tooth (1) be 18mm～200mm, inside and outside chord length be 10mm～40mm, highly for 8mm～30mm, the inside and outside semidiameter of same diamond bit tooth (1) be 8mm～25mm, inside and outside chord length poor be 3mm～15mm.
4. according to the laser in combination welding heavy wall diamond drill machine method for making head described in any one in claim 1～3, it is characterized in that: described diamond bit tooth (1) for radially interior, in, outer three layered material structures, the diamond consumption of layered material (6) in the diamond consumption > bit teeth of the outer layered material (8) of the diamond consumption > bit teeth of bit teeth middle material (7).
5. according to the laser in combination welding heavy wall diamond drill machine method for making head described in any one in claim 1～3, it is characterized in that: the saturating Shen Du≤7mm of weldering of described laser weld, bonding power is 1KW～2.3KW, 5 ° of incidence angle <, spot diameter is ￠ 0.15mm～￠ 0.25mm, laser focal is 170mm～173mm, and in facula deviation amount, bit teeth and steel body are 5.5:4.5～6.5:3.5; Thick walled steel tube during welding (2) turning spur speed is 0.6 m/min～2 ms/min.
6. according to the laser in combination welding heavy wall diamond drill machine method for making head described in any one in claim 1～3, it is characterized in that: described CO
2the gage of wire that the protection that fills silk is welded is ￠ 0.8mm～￠ 1.2mm, and welding current is 50A～280A, and the turning spur speed of thick walled steel tube during welding (2) is 6 ms/min～9 ms/min per minute.
7. according to the laser in combination welding heavy wall diamond drill machine method for making head described in any one in claim 1～3, it is characterized in that: the silver soldering sheet thickness of described high frequency brazing is 0.2mm～0.6mm, welding temperature is 650 ℃～750 ℃, the power of single diamond bit tooth (1) heating is 5KW～10KW, and temperature retention time is 5 seconds～10 seconds.
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| CN201310481126.0A CN103522014B (en) | 2013-10-15 | 2013-10-15 | Laser in combination welding heavy wall diamond drill machine method for making head |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953286A (en) * | 2014-05-19 | 2014-07-30 | 中国有色桂林矿产地质研究院有限公司 | Welded high-matrix diamond core bit and manufacturing method thereof |
| CN105018780A (en) * | 2015-07-21 | 2015-11-04 | 吉林大学 | Hard-phase-free matrix formula and manufacturing method for diamond-impregnated bit |
| CN105545214A (en) * | 2016-02-03 | 2016-05-04 | 中国有色桂林矿产地质研究院有限公司 | Main and auxiliary bottom spraying type laser-welding diamond drill bit and manufacturing method thereof |
| CN106194036A (en) * | 2016-08-30 | 2016-12-07 | 桂林特邦新材料有限公司 | Middle low temperature brazing diamond bit and preparation method thereof |
| CN106903488A (en) * | 2017-04-15 | 2017-06-30 | 肖功豪 | A kind of preparation method of new-type geological drill bit |
| CN110202700A (en) * | 2019-07-08 | 2019-09-06 | 江苏金元素超硬材料有限公司 | A kind of grooved bit and its laser welding tooling |
| CN112828437A (en) * | 2020-12-30 | 2021-05-25 | 北京探矿工程研究所 | Diamond bit high frequency welding mould |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103953286A (en) * | 2014-05-19 | 2014-07-30 | 中国有色桂林矿产地质研究院有限公司 | Welded high-matrix diamond core bit and manufacturing method thereof |
| CN105018780A (en) * | 2015-07-21 | 2015-11-04 | 吉林大学 | Hard-phase-free matrix formula and manufacturing method for diamond-impregnated bit |
| CN105545214A (en) * | 2016-02-03 | 2016-05-04 | 中国有色桂林矿产地质研究院有限公司 | Main and auxiliary bottom spraying type laser-welding diamond drill bit and manufacturing method thereof |
| CN105545214B (en) * | 2016-02-03 | 2017-11-03 | 中国有色桂林矿产地质研究院有限公司 | Major-minor bottom spray type laser welding diamond bit and its manufacture method |
| CN106194036A (en) * | 2016-08-30 | 2016-12-07 | 桂林特邦新材料有限公司 | Middle low temperature brazing diamond bit and preparation method thereof |
| CN106903488A (en) * | 2017-04-15 | 2017-06-30 | 肖功豪 | A kind of preparation method of new-type geological drill bit |
| CN106903488B (en) * | 2017-04-15 | 2018-10-09 | 肖功豪 | A kind of preparation method of geological drill bit |
| CN110202700A (en) * | 2019-07-08 | 2019-09-06 | 江苏金元素超硬材料有限公司 | A kind of grooved bit and its laser welding tooling |
| CN112828437A (en) * | 2020-12-30 | 2021-05-25 | 北京探矿工程研究所 | Diamond bit high frequency welding mould |
| CN112828437B (en) * | 2020-12-30 | 2022-07-12 | 北京探矿工程研究所 | High-frequency welding die for diamond drill bit |
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| CN103522014B (en) | 2015-09-09 |
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