Method of forming a tappet in an internal combustion engine
    12.
    发明授权
    Method of forming a tappet in an internal combustion engine 失效
    在内燃机中形成挺杆的方法

    公开(公告)号:US5724734A

    公开(公告)日:1998-03-10

    申请号:US561845

    申请日:1995-11-22

    Abstract: To manufacture a tappet in an internal combustion engine, a tappet rough body which comprises a cylindrical portion with an upper wall and an annular side wall is moulded by press processing of metal powder, such that the upper wall, the cylindrical portion and the annular side wall become larger than the tappet to be manufactured in the axial size. After sintering the tappet rough body, it is re-compressed to form the final tappet.

    Abstract translation: 为了在内燃机中制造挺杆,通过金属粉末的冲压加工来模制包括具有上壁和圆环形侧壁的圆柱形部分的挺杆体,使得上壁,圆柱形部分和环形侧 壁变得大于以轴向尺寸制造的挺杆。 在挺挺挺体后,重新压缩,形成最后的挺杆。

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