| 发明名称 |
Punching tool for forming tube slots in a manifold of a heat exchanger |
| 摘要 |
<p>A punching tool (10) for forming elongated slots in a tubular wall comprises a punching end having a generally oblong cross section, said cross section comprising a central portion and two lateral portions. According to the invention, said central portion has a larger thickness than said lateral portions. <IMAGE> <IMAGE></p> |
| 申请公布号 |
LU90728(A1) |
申请公布日期 |
2002.08.13 |
| 申请号 |
LU20010090728 |
申请日期 |
2001.02.12 |
| 申请人 |
DELPHI TECHNOLOGIES INC. |
发明人 |
CHARLOT HERVE;PARIS SERGE;APPERT STEPHANE |
| 分类号 |
B21D28/34;B21D53/08;(IPC1-7):B21D28/34 |
主分类号 |
B21D28/34 |
| 代理机构 |
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代理人 |
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