Anvil for friction stir welding high temperature materials
    13.
    发明授权
    Anvil for friction stir welding high temperature materials 有权
    砧座用于摩擦搅拌焊接高温材料

    公开(公告)号:US06732901B2

    公开(公告)日:2004-05-11

    申请号:US10171272

    申请日:2002-06-11

    IPC分类号: B23K2012

    CPC分类号: B23K20/126

    摘要: A friction stir welding anvil and method of producing a friction stir welding anvil that precludes diffusion or mechanical bonding of the anvil to the work pieces are provided. The alternatives for producing such an anvil comprise coating the anvil with diffusion barriers such as oxides, nitrides, intermetallics, and/or refractory metals; manufacturing an anvil either completely or partially from the same; or placing a coating of such materials in the form of a thin sheet or a powder between the anvil and the work pieces. The anvil disclosed herein exhibits high strength and hardness even at elevated temperatures, such as those greater than 800° C., so as to prevent the anvil from mechanically or diffusion bonding to the work pieces and so as to minimize, or eliminate altogether, anvil deformation.

    摘要翻译: 提供了一种摩擦搅拌焊接砧座以及制造摩擦搅拌焊砧的方法,该砧座排除了砧座对工件的扩散或机械结合。 用于生产这种砧座的替代方案包括用诸如氧化物,氮化物,金属间化合物和/或难熔金属的扩散阻挡层涂覆砧座; 完全或部分地制造砧座; 或者在砧座和工件之间放置薄片或粉末形式的这种材料的涂层。 本文公开的砧座即使在高于800℃的高温下也显示出高的强度和硬度,以防止砧座机械地或扩散地粘结到工件上并且使砧座最小化或完全消除 形变。