CN1220627A - Process for manufacturing inserts with holes for clamping - Google Patents
Process for manufacturing inserts with holes for clamping Download PDFInfo
- Publication number
- CN1220627A CN1220627A CN97193073A CN97193073A CN1220627A CN 1220627 A CN1220627 A CN 1220627A CN 97193073 A CN97193073 A CN 97193073A CN 97193073 A CN97193073 A CN 97193073A CN 1220627 A CN1220627 A CN 1220627A
- Authority
- CN
- China
- Prior art keywords
- plunger
- sintering
- carbide
- sintered
- blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 42
- 238000005245 sintering Methods 0.000 claims abstract description 20
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 10
- 239000010432 diamond Substances 0.000 claims description 10
- 229910052758 niobium Inorganic materials 0.000 claims description 10
- 239000010955 niobium Substances 0.000 claims description 10
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000002386 leaching Methods 0.000 claims description 6
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000003870 refractory metal Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims 3
- 230000008018 melting Effects 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 239000003082 abrasive agent Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
-
- 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
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- 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
-
- 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
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F2005/103—Cavity made by removal of insert
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
- Drilling Tools (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Laminated Bodies (AREA)
Abstract
According to the present invention there is provided a method of making a cutting insert with a hole for clamping to a tool holder wherein a super-hard abrasive material is sintered and simultaneously bonded to a sintered cemented carbide body with a hole inside a container under elevated pressure and temperature conditions. During sintering the hole is filled with a plug which after sintering is removed.
Description
The present invention relates to a kind of high pressure/high temperature (HP/HT) manufacture method that is used for making polycrystalline diamond or the slotting folder of cubic lattice borazon cutting.Specifically, the present invention is a kind of improvement to this HP/HT technology, adopts this method can make cutting insert folder and has better production economy, but and have a gripping performance.
At some nonferrous alloy, for example in the machined of copper, magnesium and aluminium, diamond is best tool materials, and the borazon of thirty years of age prismatic crystal lattice (cBN) then is very suitable for to process hardened steel, chilled cast iron and cast iron at a high speed.
The slotting folder that in this class operation, uses, perhaps be known as PCD (polycrystalline diamond sintered blank) or be known as PcBN (polycrystal cubic lattice borazon sintered blank), they comprise the carbide main body of a sintering, and be covered with one deck diamond or cBN coating, this coating forms under HTHP, makes diamond or cBN have stable phase structure.Perhaps, make this slotting folder have the quality of diamond or cBN in a bight or along an one edge at least by the method for soldering.
This class is inserted the manufacture method of folder at US, and 3,745,623; 3,743,489 and 4,525,179 and U.S. Patent application 08/446,487 and 08/446,490 in existing disclosed, these explanations are used as reference in the present invention.
Be used for mach many slotting folders and all have a centre bore, so as with the hilt clamping together.Insert folder for soldering, the top of a PCD/CBN can be soldered to one has on the main body of eyelet, thereby realization above-mentioned purpose, also can cut out eyelet afterwards, this method cost height, because cutting will form an aperture by discharge processing (EDM) usually, and then silk is cut the eyelet that (Wire cutting) forms actual size.Adopt this method can only make straight hole, and some hole, the eyelet that for example has circular groove shape section then can't gratifyingly cut out.
One object of the present invention is to solve an existing difficult problem in the above-mentioned prior art.
Another object of the present invention is to provide a kind of method of making eyelet in blank, and this blank will be through the processing of high pressure and high temperature, so that diamond or cBN are stable.
According to the present invention, the drilling operation is finished by an eyelet is set on the sintered-carbide blank.In the HP/HT processing procedure, for eyelet is provided with a plunger, it is become by cemented carbide material, on every side around a sleeve made from exotic material, and the sleeve of making of niobium for example.After HP/HT handles, be easy to this plunger is removed, for example resistant to elevated temperatures metal is carried out chemical leaching, plunger is removed.
Fig. 1 is the profile through the improved HP/HT container of the present invention.
Fig. 2 is the decomposition diagram of the inventive method.
The equipment that adopts high pressure and high-temperature technology simultaneously has been known in the prior art.With reference to accompanying drawing 1, make it to be under the HP/HT environment in the space of this equipment of HP/HT container 10 can being packed into.This assembly is made up of a jar 11, and it comprises a cylinder 12 and a lid 13, and they are made by shielded metal, and this metal can be selected from zirconium, titanium, lithium, niobium and molybdenum.
Sintered-carbide blank 16 with holes is put into cylinder 12.This hole can be a cylindrical hole, also can be the hole of other shapes, for example in the one or both sides of blank completely or the splaying or cut sth. askew of part.A stopper identical with its geometry is housed in the hole.This stopper preferably is made up of the carbide of sintering, and preferably identical with the component of sintered-carbide blank 25, perhaps to form by ceramic material, stopper is on every side around a sleeve 20 of being made by refractory metal, preferably made by niobium, its wall thickness is 0.25～0.5mm.
The mixture that will contain diamond or cBN powder is encased in the container, for example forms a top layer or makes channel form, and is of U.S. Patent application 08/446,487 and 08/446,490, perhaps makes other any suitable shapes.This container closure is good and put into HP/HT equipment.Pressure and temperature is raise, make diamond or cBN can stablize the sufficiently long time, under pressure, make charging do the short time cooling, treat that pressure just obtains the sintering blank after disappearing so that produce sintering.
Utilize discharge processing plunger can be got rid of.But preferably utilize mechanical means or chemical method that it is removed, for example can get rid of niobium with potassium hydroxide.In a preferred embodiment, the carbide plunger 25 of sintering can be reused.At last the sintering blank is ground into required shape, circular, triangle or square, and make it to have required size.
As one embodiment of the present of invention, a sintered-carbide disk, its component accounts for 16% Co for WC+ weight, and its diameter is about 22mm, and thickness is 6mm, and center-hole diameter is 4mm, and has four grooves, they preferably evenly distribute along the periphery surface of blank.The cross section of these grooves is roughly semicircle, and its diameter is about 4mm.Carbide disk behind the sintering is put into a niobium cup.A plunger is clamp-oned in the hole of disk, and the sintered-carbide pole that this plunger is 3mm by a diameter is formed, and its component is the Co of WC+16%, and putting it into an endwall then thick is to make in the niobium pipe of 0.5mm.Fill described groove with a kind of cBN mixture of powders, the component of this mixture is equivalent to the Megadiamond of commodity rank MN50, then, seal of vessel is good, and according to US, 5,115, No. 697 the described method of patent is handled under HTHP, the sintering blank that the cooling back just forms.In the potassium hydroxide solution of liquid state, carry out leaching, plunger is removed with the method for chemistry.And then blank ground, making it to have the liner style of SNGA120408, it has a central aperture, can be fixed together firmly with a hilt.
Claims (20)
1. manufacture method that folder is inserted in the cutting that has an eyelet, this eyelet can be used for fixing a hilt, wherein, in a container, under high-temperature and high-pressure conditions, a kind of superhard grinding-material is carried out sintering, simultaneously it is attached to a sintered-carbide main body with holes, it is characterized in that in sintering process, a plunger is housed in the described hole, after sintering with its removal.
2. the method for claim 1 is characterized in that, comprises a kind of high-melting point metal in the plunger.
3. the method for claim 1 is characterized in that, comprises a kind of carbide of sintering in the plunger.
4. the method for claim 1 is characterized in that, it also comprises with the method for chemical leaching removes plunger.
5. the method for claim 1 is characterized in that, fills in row discharge method for processing by coupled columns plunger is removed from the sintering blank.
6. method as claimed in claim 3 is characterized in that, the sintered-carbide in the plunger component with main body basically is identical.
7. the method for claim 1 is characterized in that, plunger comprises the carbide blank of a sintering, and it is on every side around a sleeve of being made by materials with high melting point.
8. method as claimed in claim 7 is characterized in that, the sintered-carbide of plunger and the component of main body are basic identical.
9. method as claimed in claim 8 is characterized in that refractory metal is a niobium.
10. method as claimed in claim 9 is characterized in that, with the method for potassium hydroxide chemistry leaching niobium is removed.
11. the method for claim 1 is characterized in that, described superabrasive material comprises the polycrystalline diamond crystalline solid.
12. the method for claim 1 is characterized in that, described superabrasive material comprises the borazon crystalline solid of cube lattice.
13. the manufacture method of folder is inserted in a cutting with holes, this hole can be used to the dead knife handle, wherein under HTHP a superabrasive material with holes is carried out sintering at an internal tank, it is characterized in that in sintering process, described hole is blocked by a plunger, after sintering again with it removal.
14. method as claimed in claim 13 is characterized in that, plunger comprises a kind of refractory metal.
15. method as claimed in claim 13 is characterized in that, plunger comprises a kind of sintered-carbide.
16. method as claimed in claim 13 is characterized in that, it also comprises with the method for chemical leaching removes plunger.
17. method as claimed in claim 13 is characterized in that, it comprises that also filling in row discharge method for processing with coupled columns removes plunger from the sintering blank.
18. method as claimed in claim 13 is characterized in that, plunger comprises a sintered-carbide blank, and the sleeve of a materials with high melting point is housed on every side.
19. method as claimed in claim 20 is characterized in that, refractory metal is a niobium.
20. method as claimed in claim 20 is characterized in that, with the method for potassium hydroxide chemistry leaching niobium is got rid of.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60163196A | 1996-02-14 | 1996-02-14 | |
| US08/601,631 | 1996-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1220627A true CN1220627A (en) | 1999-06-23 |
| CN1064878C CN1064878C (en) | 2001-04-25 |
Family
ID=24408200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN971930732A Expired - Fee Related CN1064878C (en) | 1996-02-14 | 1997-02-12 | Process for manufacturing inserts with holes for clamping |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0880425A1 (en) |
| JP (1) | JP2002514977A (en) |
| KR (1) | KR19990082527A (en) |
| CN (1) | CN1064878C (en) |
| AU (1) | AU709461B2 (en) |
| WO (1) | WO1997029885A1 (en) |
| ZA (1) | ZA971237B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860693A (en) * | 2019-11-28 | 2020-03-06 | 中国有色桂林矿产地质研究院有限公司 | Superhard material polycrystalline multilayer composite sheet with hollow structure and preparation method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6120570A (en) * | 1996-02-14 | 2000-09-19 | Smith International | Process for manufacturing inserts with holes for clamping |
| US6655234B2 (en) * | 2000-01-31 | 2003-12-02 | Baker Hughes Incorporated | Method of manufacturing PDC cutter with chambers or passages |
| US7322776B2 (en) | 2003-05-14 | 2008-01-29 | Diamond Innovations, Inc. | Cutting tool inserts and methods to manufacture |
| JP4782672B2 (en) | 2003-06-03 | 2011-09-28 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Indexable cutting insert and method of manufacturing the cutting insert |
| US20050271483A1 (en) | 2004-06-02 | 2005-12-08 | Sandvik Ab | Indexable cutting inserts and methods for producing the same |
| US7493965B1 (en) | 2006-04-12 | 2009-02-24 | Us Synthetic Corporation | Apparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2638461A1 (en) * | 1988-11-03 | 1990-05-04 | Combustible Nucleaire | ABRASIVE COMPOSITE PRODUCT COMPRISING AN ACTIVE PART OF ULTRA-HARD MATERIAL AND METHOD FOR MANUFACTURING SUCH A PRODUCT |
-
1997
- 1997-02-12 KR KR1019980706263A patent/KR19990082527A/en not_active Application Discontinuation
- 1997-02-12 EP EP97903702A patent/EP0880425A1/en not_active Withdrawn
- 1997-02-12 JP JP52926997A patent/JP2002514977A/en active Pending
- 1997-02-12 CN CN971930732A patent/CN1064878C/en not_active Expired - Fee Related
- 1997-02-12 AU AU18176/97A patent/AU709461B2/en not_active Ceased
- 1997-02-12 WO PCT/SE1997/000223 patent/WO1997029885A1/en not_active Application Discontinuation
- 1997-02-13 ZA ZA9701237A patent/ZA971237B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860693A (en) * | 2019-11-28 | 2020-03-06 | 中国有色桂林矿产地质研究院有限公司 | Superhard material polycrystalline multilayer composite sheet with hollow structure and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064878C (en) | 2001-04-25 |
| AU709461B2 (en) | 1999-08-26 |
| ZA971237B (en) | 1997-08-25 |
| KR19990082527A (en) | 1999-11-25 |
| AU1817697A (en) | 1997-09-02 |
| JP2002514977A (en) | 2002-05-21 |
| WO1997029885A1 (en) | 1997-08-21 |
| EP0880425A1 (en) | 1998-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |