JPS6411939A - High hard sintered body for tool containing wurtzite type boron nitride - Google Patents
High hard sintered body for tool containing wurtzite type boron nitrideInfo
- Publication number
- JPS6411939A JPS6411939A JP62167691A JP16769187A JPS6411939A JP S6411939 A JPS6411939 A JP S6411939A JP 62167691 A JP62167691 A JP 62167691A JP 16769187 A JP16769187 A JP 16769187A JP S6411939 A JPS6411939 A JP S6411939A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- sintered body
- high pressure
- tool
- wurtzite type
- 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
Abstract
PURPOSE:To improve the toughness and wear resistance at a high temp. by regulating the main hard phase of a sintered body for a tool to a high pressure phase BN, forming a bonding phase with cubic BN, wurtzite type BN and ceramic composite products having specific compsn. and optimizing the grain size of said sintered body. CONSTITUTION:In the sintered body for a tool, the main hard phase is regulated to the high pressure phase BN and is formed with 30-80vol.%. The residual bonding phase is formed with the ternary mixture of Ti expressed by a chemical formula 1, one or more kinds of mixtures among the compounds expressed by a chemical formula II (in the formula II, M denotes transition metals of 4a, 5a, 6a group) and the mixture of one or more kinds among Al, Fe, Co and Ni or the mixture of the reaction products between these elements and the high pressure phase BN, etc. The high pressure phase BN is formed with 65-95% cubic BN having <=15mu average grain size. The components expressed by the formula 1 is furthermore regulated to 50-99% in the bonding phase. The ratio of the average grain size to the average grain space is regulated to 0.2-2 in the wurtzite type BN polycrystal grains dispersing in the bonding phase. Said sintered body is suitable as a tool for finish working of a carburizing gear, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62167691A JPS6411939A (en) | 1987-07-07 | 1987-07-07 | High hard sintered body for tool containing wurtzite type boron nitride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62167691A JPS6411939A (en) | 1987-07-07 | 1987-07-07 | High hard sintered body for tool containing wurtzite type boron nitride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6411939A true JPS6411939A (en) | 1989-01-17 |
JPH0431013B2 JPH0431013B2 (en) | 1992-05-25 |
Family
ID=15854445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62167691A Granted JPS6411939A (en) | 1987-07-07 | 1987-07-07 | High hard sintered body for tool containing wurtzite type boron nitride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6411939A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015525289A (en) * | 2012-05-31 | 2015-09-03 | 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 | Method for producing cBN material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60169533A (en) * | 1985-01-21 | 1985-09-03 | Toshiba Tungaloy Co Ltd | Production of high-hardness sintered body |
JPS61179847A (en) * | 1986-02-17 | 1986-08-12 | Toshiba Tungaloy Co Ltd | High hardness sintered body for cutting |
JPS6372843A (en) * | 1987-08-28 | 1988-04-02 | Nippon Oil & Fats Co Ltd | Manufacture of sintered compact containing high density phase boron nitride for cutting tool |
-
1987
- 1987-07-07 JP JP62167691A patent/JPS6411939A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60169533A (en) * | 1985-01-21 | 1985-09-03 | Toshiba Tungaloy Co Ltd | Production of high-hardness sintered body |
JPS61179847A (en) * | 1986-02-17 | 1986-08-12 | Toshiba Tungaloy Co Ltd | High hardness sintered body for cutting |
JPS6372843A (en) * | 1987-08-28 | 1988-04-02 | Nippon Oil & Fats Co Ltd | Manufacture of sintered compact containing high density phase boron nitride for cutting tool |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015525289A (en) * | 2012-05-31 | 2015-09-03 | 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 | Method for producing cBN material |
US10252947B2 (en) | 2012-05-31 | 2019-04-09 | Hyperion Materials & Technologies (Sweden) Ab | Method of making a cBN material |
Also Published As
Publication number | Publication date |
---|---|
JPH0431013B2 (en) | 1992-05-25 |
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