| 发明名称 |
METHOD AND DEVICE FOR THE PRODUCTION OF A WORKPIECE WITH INTERNAL TOOTHING, IN PARTICULAR A HOLLOW WHEEL |
| 摘要 |
A process and assembly are employed to manufacture a work piece with internal gear teeth e.g. a hollow wheel. The operation begins with a cup-shaped preform (N) with an essentially cylindrical side wall (N1) and drift (5). The outer profile corresponds to the internal teeth to be produced |
| 申请公布号 |
KR20030059216(A) |
申请公布日期 |
2003.07.07 |
| 申请号 |
KR20037005827 |
申请日期 |
2003.04.26 |
| 申请人 |
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发明人 |
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| 分类号 |
B21J5/12;B21J13/02;B21K1/30 |
主分类号 |
B21J5/12 |
| 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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