JPS54134011A - High hard sintered body for tools and its manufacture - Google Patents
High hard sintered body for tools and its manufactureInfo
- Publication number
- JPS54134011A JPS54134011A JP4243378A JP4243378A JPS54134011A JP S54134011 A JPS54134011 A JP S54134011A JP 4243378 A JP4243378 A JP 4243378A JP 4243378 A JP4243378 A JP 4243378A JP S54134011 A JPS54134011 A JP S54134011A
- Authority
- JP
- Japan
- Prior art keywords
- sintered body
- manufacture
- tools
- high hard
- hard
- 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
Landscapes
- Ceramic Products (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To permit the industrial manufacture of a high hard BN sintered body for tools, which has so far been hard to manufacture, by adding AlN powder to fine cubic BN crystal powder.
CONSTITUTION: A metal powder composed mainly of AlN is added to cubic boron nitride(BN) crystal powder containing more than 80% fine particles of a less than 10 micron grain size and then the mixture is molded. The molding is then kept at 1200°C or more under a pressure of more than 40 kb for 5 minutes or more in a super high pressure vessel. The Vickers hardness of the sintered body obtained by this method is 3000 to 4000, much higher than that (2000) of the conventional products.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53042433A JPS5819737B2 (en) | 1978-04-10 | 1978-04-10 | High hardness sintered body for tools and its manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53042433A JPS5819737B2 (en) | 1978-04-10 | 1978-04-10 | High hardness sintered body for tools and its manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54134011A true JPS54134011A (en) | 1979-10-18 |
JPS5819737B2 JPS5819737B2 (en) | 1983-04-19 |
Family
ID=12635927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53042433A Expired JPS5819737B2 (en) | 1978-04-10 | 1978-04-10 | High hardness sintered body for tools and its manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5819737B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5861253A (en) * | 1981-10-06 | 1983-04-12 | Mitsubishi Metal Corp | High toughness boron nitride-base material sintered under superhigh pressure for cutting tool and wear-resistant tool |
US8148282B2 (en) * | 2008-09-18 | 2012-04-03 | Diamond Innovations, Inc. | Method of solid PCBN sythesis |
-
1978
- 1978-04-10 JP JP53042433A patent/JPS5819737B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5861253A (en) * | 1981-10-06 | 1983-04-12 | Mitsubishi Metal Corp | High toughness boron nitride-base material sintered under superhigh pressure for cutting tool and wear-resistant tool |
JPS6033893B2 (en) * | 1981-10-06 | 1985-08-06 | 三菱マテリアル株式会社 | High-toughness boron nitride-based ultra-high pressure sintered material for cutting and wear-resistant tools |
US8148282B2 (en) * | 2008-09-18 | 2012-04-03 | Diamond Innovations, Inc. | Method of solid PCBN sythesis |
Also Published As
Publication number | Publication date |
---|---|
JPS5819737B2 (en) | 1983-04-19 |
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