发明名称 METHOD OF FORMING HYDROFORMED MEMBER WITH OPENING
摘要 <p>A method for manufacturing a hydroforming member includes the step of providing a blank (10). The blank (10) is defined by blank wall (16). The blank (10) is placed in a die assembly (14) having a die cavity (12) defined by a die surface (24). The blank (10) is expanded so that the blank wall (16) is forced against the die surface (24) to form the hydroformed member. A portion of the blank wall conforms against a wall-thinning element (26, 28) positioned along the die surface (24) to form a removable wall section (46, 50) in a portion of the blank wall (24). The removable wall section (46, 50) is then removed from the blank wall (16) to form an opening in the hydroformed member.</p>
申请公布号 EP1560669(B1) 申请公布日期 2008.07.02
申请号 EP20030783345 申请日期 2003.11.12
申请人 MAGNA INTERNATIONAL INC. 发明人 DICESARE, JOHN
分类号 B21D26/025;B21D26/035;B21D28/28 主分类号 B21D26/025
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