发明名称 |
Undercut punch to control ironing |
摘要 |
A method and tool for drawing and ironing and bottom profiling a container in a single process operation is disclosed wherein the ironing does not take place during the bottom profiling operation and the precoating of the container side wall is not damaged during removal of the punch because of a specifically configured undercut portion of the punch wall.
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申请公布号 |
US4534201(A) |
申请公布日期 |
1985.08.13 |
申请号 |
US19820454420 |
申请日期 |
1982.12.29 |
申请人 |
AMERICAN CAN COMPANY |
发明人 |
LAROSA, JOHN;PANIPINTO, DAVID C. |
分类号 |
B21D22/30;(IPC1-7):B21D22/21 |
主分类号 |
B21D22/30 |
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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