发明名称 VERFAHREN ZUM INNENHOCHDRUCKUMFORMEN EINES ELEMENTES MIT ÖFFNUNGEN
摘要 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.
申请公布号 DE60321947(D1) 申请公布日期 2008.08.14
申请号 DE2003621947 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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