发明授权
US4249914A Cutting tool material and method for producing cutting tool material
失效
切削刀具材料和切削刀具材料的制造方法
- 专利标题： Cutting tool material and method for producing cutting tool material
- 专利标题（中）： 切削刀具材料和切削刀具材料的制造方法
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申请号： US897467申请日： 1978-04-18
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公开(公告)号： US4249914A公开(公告)日： 1981-02-10
- 发明人: Kazuki Ogawa , Mitsuhiko Furukawa , Yoshimichi Hara , Takashi Kitahira
- 申请人： Kazuki Ogawa , Mitsuhiko Furukawa , Yoshimichi Hara , Takashi Kitahira
- 申请人地址： JPX Fukuoka
- 专利权人： Nippon Tungsten Co., Ltd.
- 当前专利权人： Nippon Tungsten Co., Ltd.
- 当前专利权人地址： JPX Fukuoka
- 优先权： JPX52-45345 19770420
- 主分类号： C04B35/10
- IPC分类号： C04B35/10 ; B23B27/14 ; B23P15/28 ; C04B35/111 ; C04B35/645 ; B24D3/04
摘要：
The powder mixture consisting of 0.5 to 5 percent by weight of TiN and 99.5 to 95 percent by weight of Al.sub.2 O.sub.3 is first presintered and is subsequently subjected to a hot isostatic pressing so as to produce a sintered product which has the maximum grain size of 2 .mu.m and the hardness of more than H.sub.R A 94.Such sintered product is used as a cutting tool for a high-speed continuous cutting operation.
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