| 发明名称 |
Workpiece-bore processing apparatus and method |
| 摘要 |
A plurality of processing balls with different outer diameters are prepared at a slidable or rotatable upper stage. One ball, selected from the plurality of prepared balls in correspondence with the inner diameter of a bore of a workpiece, is inserted through the bore while being pressed by a pin.
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| 申请公布号 |
US5524464(A) |
申请公布日期 |
1996.06.11 |
| 申请号 |
US19940314293 |
申请日期 |
1994.09.30 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
ASADA, TAKAFUMI;MORIMOTO, MASATO |
| 分类号 |
B21K1/02;B21K21/16;B23P9/00;(IPC1-7):B21C31/00;B21D53/10 |
主分类号 |
B21K1/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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