| 发明名称 |
Internal working tool has shaft and working head with conical section to produce through opening in workpiece |
| 摘要 |
<p>The internal forming tool (1) has a shaft (12) and a working head (2) to produce a through hole in the workpiece. The working head has a conical section (3) with a tip (6). The working head has a serpentine formed shaping (8). The helical angle of the shaping is positive with respect to the direction of rotation of the tool.</p> |
| 申请公布号 |
DE102004046424(A1) |
申请公布日期 |
2006.04.06 |
| 申请号 |
DE20041046424 |
申请日期 |
2004.09.24 |
| 申请人 |
UNIVERSITAET KASSEL |
发明人 |
TIKAL, FRANZ;GIES, CHRISTIAN;HOLSTEN, SVEN;RAMSAY, JUAN MIGUEL GODOY |
| 分类号 |
B21D31/02;B21D22/00;B21D37/00 |
主分类号 |
B21D31/02 |
| 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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