| 发明名称 |
HYDROFORMING A TUBULAR STRUCTURE OF VARYING DIAMETER FROM A TUBULAR BLANK USING ELECTROMAGNETIC PULSE WELDING |
| 摘要 |
<p>A method of hydroforming a tubular structure of varying diameter along its longitudinal axis, comprising the formation of a tubular blank member by welding together, at their periphery, tubes of different diameters using electromagnetic pulse welding.</p> |
| 申请公布号 |
EP1276570(B1) |
申请公布日期 |
2005.07.13 |
| 申请号 |
EP20010923445 |
申请日期 |
2001.04.24 |
| 申请人 |
COSMA INTERNATIONAL INC. |
发明人 |
GABBIANELLI, GIANFRANCO;KOTAGIRI, SEETARAMA, S.;ASHLEY, RICHARD |
| 分类号 |
B21C37/15;B21D26/033;B21D26/053;B21D26/14;B23K13/02;B23K20/06;(IPC1-7):B21C37/00 |
主分类号 |
B21C37/15 |
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