| 发明名称 |
METHOD OF TREATING RISE OF HOLE PERFORATED AT SHEET PLATE |
| 摘要 |
PURPOSE:To provide a method of treating rise of hole perforated at a sheet plate without scratch nor deflectionof work upon punching of the plate to form the hole within pressurized zone of the plate. |
| 申请公布号 |
JPS52127693(A) |
申请公布日期 |
1977.10.26 |
| 申请号 |
JP19760044566 |
申请日期 |
1976.04.19 |
| 申请人 |
MATSUSHITA ELECTRIC WORKS LTD |
发明人 |
NAKAMURA YOSHIMITSU |
| 分类号 |
B23D79/00;B23D35/00;B24B9/00 |
主分类号 |
B23D79/00 |
| 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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