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公开(公告)号:US06427329B2
公开(公告)日:2002-08-06
申请号:US09843483
申请日:2001-04-26
IPC分类号: B21D5326
CPC分类号: F16H55/44 , B21D22/16 , B21D53/261 , B21H1/02 , B21H1/04 , Y10T29/49453 , Y10T29/49536
摘要: A method for forming a hub having blind bore is provided. The blind bore hub is formed integrally with a solid circular disc by displacing metal radially inward from the upper surface toward the center of the disc to form a hub, and then punching a bore opening through the center of the hub to provide a blind bore therein. A blind bore hub formed by the foregoing method is also provided.
摘要翻译: 提供了一种形成具有盲孔的轮毂的方法。 通过将金属从上表面朝向盘的中心径向向内移动以形成轮毂,盲孔毂与实心圆盘一体地形成,然后冲压穿过毂的中心的孔口,以在其中提供盲孔 。 还提供了通过上述方法形成的盲孔毂。