发明名称 |
Cutting insert of sintered hard alloy |
摘要 |
<p>According to the present invention there is now available a cutting insert of sintered carbonitride alloy and with complicated geometry, said insert having improved efficiency. This is obtained by giving the powder non-uniform compaction at the pressing so that the future working edges will have a higher relative density than surrounding, more "supporting" material in the pressbody. By these means are often obtained surface defects in the form of cracks because of dissolved strains during the sintering.</p> |
申请公布号 |
EP0428491(B1) |
申请公布日期 |
1996.09.18 |
申请号 |
EP19900850372 |
申请日期 |
1990.11.14 |
申请人 |
SANDVIK AKTIEBOLAG |
发明人 |
WESTERGREN, KENNETH;WEINL, GEROLD;OSKARSSON, ROLF |
分类号 |
B23B27/14;B22F3/02;B22F3/10;B22F3/16;B23P15/28;C22C1/05;C22C29/00;C22C29/02;C22C29/04;C22C29/06;C22C29/08;C22C29/10;C22C29/12;C22C29/16;(IPC1-7):C22C1/05 |
主分类号 |
B23B27/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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