| 发明名称 |
A ROCK DRILL BIT AND CUTTING INSERTS. |
| 摘要 |
<p>The present invention relates to a cutting insert for a rock drill bit. The rock drill bit includes a tool body (10) having a front surface (13), and a number of cutting inserts (14), each having a generally cylindrical shank portion. The cutting insert (14) is provided with increased volume portions in its parts being most subjected to wear. The invention also relates to the rock drill bit.</p> |
| 申请公布号 |
MX9702555(A) |
申请公布日期 |
1997.10.31 |
| 申请号 |
MX19970002555 |
申请日期 |
1995.10.04 |
| 申请人 |
SANDVIK AB. |
发明人 |
UDO FISCHER;TORBJOERN HARTZELL;KAUKO KAERKI |
| 分类号 |
E21B10/52;E21B10/46;E21B10/56;E21B10/567;(IPC1-7):E21B10/56 |
主分类号 |
E21B10/52 |
| 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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