| 发明名称 |
Superhard cutting element having reduced surface roughness. |
| 摘要 |
<p>A superhard cutting element (10') having a polished, low friction substantially planar cutting face (40) with a surface finish roughness of 254 nm (10 mu in.) or less and preferably 12,7 nm (0,5 mu in.) or less. <IMAGE></p> |
| 申请公布号 |
EP0656458(A2) |
申请公布日期 |
1995.06.07 |
| 申请号 |
EP19940870183 |
申请日期 |
1994.11.22 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
LUND, JEFFREY B.;SMITH, REDD H. |
| 分类号 |
B23B27/14;B24B1/00;B24B3/60;B24B53/02;E21B10/56;E21B10/567;(IPC1-7):E21B10/56 |
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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