| 发明名称 |
Dies and punches for producing pressed components |
| 摘要 |
A method of manufacturing a die or a punch for producing pressed components, wherein a semi-finished metal block is spark-eroded with the help of electrodes comprising a stack of sheared sheets of copper or like conducting material.
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| 申请公布号 |
US3910138(A) |
申请公布日期 |
1975.10.07 |
| 申请号 |
US19740448570 |
申请日期 |
1974.03.06 |
| 申请人 |
SAMARENDRA NARAYAN SINHA |
发明人 |
SINHA, RATHIN;SINHA, PRADEEP |
| 分类号 |
B23H9/12;B23P15/24;(IPC1-7):B21K5/20 |
主分类号 |
B23H9/12 |
| 代理机构 |
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代理人 |
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