发明名称 |
Electromagnetic shape calibration of tubes |
摘要 |
Articles are often formed from a tubular workpiece in a process which does not usefully shape the ends of the tube. In an embodiment of the invention, tube ends may be mechanically reduced in cross section and then expanded against a secondary forming surface(s) using an electromagnetic force to obtain desired shapes for the tube ends and minimize scrapping of workpiece material. |
申请公布号 |
US8099989(B2) |
申请公布日期 |
2012.01.24 |
申请号 |
US20090434703 |
申请日期 |
2009.05.04 |
申请人 |
BRADLEY JOHN R.;LOVELL MICHAEL H.;MARKS KEVIN R.;KENT TERRY A.;COTTON DONALD W;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
BRADLEY JOHN R.;LOVELL MICHAEL H.;MARKS KEVIN R.;KENT TERRY A.;COTTON DONALD W |
分类号 |
B21D39/00;B23P17/00 |
主分类号 |
B21D39/00 |
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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