发明名称 |
Preform, hydroforming method, and hydroformed product |
摘要 |
<p>A preform 1050 having edges overlapped and jointed, two outer members 1010, 1020 for forming outer surfaces 1061, 1066 of a hydroformed product 1060, and reinforcement members 1030, 1040 for forming reinforcement ribs 1062, 1067 that divide a hollow cross section of the hydroformed product, including a joint 1055 formed by, when more than three sheet materials for forming the outer members and the reinforcement members are overlapped together, welding a first sheet material 1030 on a surface of the overlapped sheet materials to a second sheet material 1040 positioned inside the first sheet material, and a space disposed and aligned with a joint plane between the second sheet material and a third sheet material 1020 located inside the second sheet material during the welding process.</p> |
申请公布号 |
EP1621267(B1) |
申请公布日期 |
2008.07.16 |
申请号 |
EP20050016215 |
申请日期 |
2005.07.26 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
UENO, KAZUTO;MINAGAWA, HAJIME;OOE, SHINJI;MITAMURA, KAZUHIRO;MAJIMA, SATORU;HARAOKA, TAKASHI;YOSHITOME, MASAAKI;KANAFUSA, HIDETO;WATARI, TOMOAKI;HIROTA, TOMOYUKI |
分类号 |
B21D26/02;B21D26/059 |
主分类号 |
B21D26/02 |
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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