发明名称 |
An electrically heatable caulking method. |
摘要 |
<p>An electrical caulking method of a work which is made of magnesium or a magnesium alloy. The work includes a body and a caulking pin integrally projected from the body. The method includes a step of holding the work between opposing two electrodes in such a manner that the first electrode contacts the caulking pin and the second electrode contacts the body, a step of supplying an electric current between these electrodes and a step of exerting a pressure so as to caulk the caulking pin into a desired shape. At least the first electrode which contacts the caulking pin of the work is made of a material having a low thermal diffusivity and is difficult to alloy with magnesium.</p> |
申请公布号 |
EP0566031(A1) |
申请公布日期 |
1993.10.20 |
申请号 |
EP19930105828 |
申请日期 |
1993.04.08 |
申请人 |
NIPPON LIGHT METAL CO., LTD |
发明人 |
MATSUMOTO, JIRO;YANAGISAWA, IKUO |
分类号 |
B21D39/03;B21D39/00;B21D53/84;B21J15/00;B21J15/02;B21J15/08;B29C65/60;H05B3/00;H05B3/03;H05B3/12;(IPC1-7):B21D39/00 |
主分类号 |
B21D39/03 |
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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