发明名称 Method of making a fork for a steering shaft member and fork made by this method
摘要 In a process to manufacture a universal joint for a steering fork linkage, a length of steel tube is placed inside a forming tool and subjected to high internal pressure. The pipe sector in which the forks are to be created expands under internal pressure. The fork halves are created by cutting a profile along the pre-defined interface.
申请公布号 EP1520637(A1) 申请公布日期 2005.04.06
申请号 EP20040020596 申请日期 2004.08.31
申请人 BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT 发明人 STUEBER, HORST;STREINZ, WOLFGANG
分类号 B21D26/033;F16D3/38;(IPC1-7):B21D26/02 主分类号 B21D26/033
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