Method for making seamless wheel rims
    1.
    发明授权
    Method for making seamless wheel rims 失效
    制造无缝轮圈的方法

    公开(公告)号:US06298702B1

    公开(公告)日:2001-10-09

    申请号:US09439100

    申请日:1999-11-12

    申请人: Helmut Korte

    发明人: Helmut Korte

    IPC分类号: B21D2214

    CPC分类号: B21D53/26 B21D22/14 B21D53/30

    摘要: A method for forming seamless tubular workpieces, such as vehicular wheel rim components. In the method, a flat circular blank having a central aperture is expanded into the interior of a hollow mandrel using a mushroom-shaped spinning roller. In this expansion operation, the blank is caused to take on a tubular shape having an exterior contour which conforms to the interior contour of the hollow mandrel.

    摘要翻译: 一种形成无缝管状工件的方法,例如车轮轮缘部件。 在该方法中,具有中心孔的扁平圆形坯料使用蘑菇形纺丝辊扩展到中空心轴的内部。 在这种膨胀操作中,使坯料呈现出具有符合中空心轴的内部轮廓的外部轮廓的管状形状。