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公开(公告)号:US4313328A
公开(公告)日:1982-02-02
申请号:US161354
申请日:1980-06-20
申请人: Manfred Janssen , Karl Austermann , Volker Schmidt
发明人: Manfred Janssen , Karl Austermann , Volker Schmidt
CPC分类号: B21K1/30 , B21C37/153 , B21C37/16 , B21K1/06
摘要: A hollow, tubular blank is provided with annular, radially inwardly and/or outwardly extending protrusions by means of rolling or upsetting. These protrusions are provided with gearing teeth by means of an annular drawing die and a plug, one of these or both being provided with a gearing-forming profile.
摘要翻译: 中空的管状坯料通过轧制或镦锻设置有环形的径向向内和/或向外延伸的突出部。 这些突起通过环形拉模和塞子设置有齿轮齿,这些或两者中的一个具有齿轮形成轮廓。