发明名称 |
MANUFACTURE OF METAL ARTICLES FROM WIRE |
摘要 |
<p>A multipart article comprising a rod or pin (26) with a sleeve or collar (58) on it is made from one piece of wire by parting off a blank, impact extruding a stem to form the pin or rod, backward extruding a residual portion of the blank to form the sleeve or collar with an internal diameter slightly larger than the diameter of the stem and joined to the stem by a short thin web (64), and then fracturing the web and inserting the pin or rod into the thus separated sleeve or collar. The advantage in manufacturing small articles on a mass production basis is in the economy of forming two parts in one machine operation rather than making them separately, an example being parts of a blind-riveting assembly.</p> |
申请公布号 |
EP0162647(B1) |
申请公布日期 |
1991.08.14 |
申请号 |
EP19850303351 |
申请日期 |
1985.05.13 |
申请人 |
EMHART INC. |
发明人 |
POWDERLEY, JOHN;EVANS, RONALD WILLIAM |
分类号 |
B21J15/36;B21K1/60;F16B19/10 |
主分类号 |
B21J15/36 |
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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