Anvil for friction stir welding high temperature materials

    公开(公告)号:US20060208034A1

    公开(公告)日:2006-09-21

    申请号:US11374667

    申请日:2006-03-13

    IPC分类号: B23K20/12

    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.

    Method for metal and alloy joining using bulk friction stir welding
    32.
    发明申请
    Method for metal and alloy joining using bulk friction stir welding 审中-公开
    使用体积摩擦搅拌焊接的金属和合金接合方法

    公开(公告)号:US20050116012A1

    公开(公告)日:2005-06-02

    申请号:US10997044

    申请日:2004-11-24

    摘要: A method comprising a bulk processing technique for joining different metals and alloys using friction stir welding, wherein a block of a first material has at least two apertures disposed therein, wherein at least a first tube and a second tube are disposed in the at least two apertures, wherein friction stir welding is performed to join the block, the first tube and the second tube together in a solid state form, and the resulting workpiece is then machined to produce the completed joint.

    摘要翻译: 一种包括用于使用摩擦搅拌焊接接合不同金属和合金的块体处理技术的方法,其中第一材料的块具有设置在其中的至少两个孔,其中至少第一管和第二管设置在所述至少两个 孔,其中执行摩擦搅拌焊接以使固体状态将块,第一管和第二管连接在一起,然后将所得到的工件加工成完成的接头。

    Diamond insert grinding process
    34.
    发明授权
    Diamond insert grinding process 失效
    金刚石刀片研磨工艺

    公开(公告)号:US4993505A

    公开(公告)日:1991-02-19

    申请号:US452148

    申请日:1989-12-18

    IPC分类号: B24B3/60 E21B10/56 E21B10/573

    摘要: This invention comprises a diamond insert grinding process to remove stress riser cracks formed in a critical area of a tungsten carbide insert body. The cracks are caused by leaching of cobalt from the carbide during the process of brazing a tungsten carbide backed polycrystalline diamond disc to the body. A grinding wheel selectively removes material from the intersection of the braze below the depth of the cracks in the tungsten carbide body thereby relieving the stress riser in the critical area of the body.

    摘要翻译: 本发明包括金刚石刀片研磨工艺,以去除在碳化钨刀片体的临界区域中形成的应力提升裂纹。 在将碳化钨背衬的多晶金刚石圆盘钎焊到机体的过程中,裂纹是由碳化物中的钴浸出引起的。 砂轮选择性地从硬质合金体内的裂纹深度下方的铜焊交叉处移除材料,从而缓解了应力提升管在身体的关键区域。