发明名称 |
SHEET METAL FORMING TOOL AND METHOD |
摘要 |
There is provided a punch for use in cold forming hollow metal articles in a die without wrinkling. The punch is provided with a head portion composed of resiliently deformable material, such as an elastomer, with cavities located in the head portion to permit controlled collapse of the head portion under transverse forces exerted during a forming operation.
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申请公布号 |
CA2073595(C) |
申请公布日期 |
1995.10.10 |
申请号 |
CA19922073595 |
申请日期 |
1992.07.10 |
申请人 |
LAWSON MARDON SUTTON LTD. |
发明人 |
WILKINS, NICHOLAS HARRY;PAGE, FREDERICK BEVERLY MORLAND |
分类号 |
B21D22/10;B21D22/26;(IPC1-7):B21D22/00 |
主分类号 |
B21D22/10 |
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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