发明名称 |
Method for forming an hydroformed article |
摘要 |
<p>A hydroformed product obtained by integrally working a metal pipe material by cold plastic working, which product (x) has a bent part at least at one location, (y1) has, at least at one location of the bent part, an expanded part of dimensions of a direction toward the outer side (or inner side) of the bend in a cross-section vertical to a pipe axis and a direction vertical to that direction of at least 1.35X of a circle equivalent diameter of an end of the metal pipe, and (z1) has an inner side (outer side) of the bent part of substantially the same radius of curvature.</p> |
申请公布号 |
EP2147732(B1) |
申请公布日期 |
2015.11.18 |
申请号 |
EP20080740842 |
申请日期 |
2008.04.18 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
MIZUMURA, MASAAKI;KURIYAMA, YUKIHISA |
分类号 |
B21D53/88;B21D26/02;B21D26/033 |
主分类号 |
B21D53/88 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|