LASER DEPOSITION WELD REPAIR
    15.
    发明申请

    公开(公告)号:US20190039191A1

    公开(公告)日:2019-02-07

    申请号:US15670775

    申请日:2017-08-07

    Abstract: A weld clad layer having a substantially equiaxed grain microstructure may be formed by forming a repair area in a substrate, depositing a first layer of laser deposition spots in the repair area, and depositing a second layer of laser deposition spots over the first layer of laser deposition spots. The first layer of laser deposition spots may comprise a first laser deposition spot and a second laser deposition spot adjacent to the first laser deposition spot. The first laser deposition spot may solidify prior to deposition of the second laser deposition spot. The first layer of laser deposition spots may comprise titanium or titanium alloy.

    Repair of Casting Defects
    18.
    发明申请
    Repair of Casting Defects 审中-公开
    铸造缺陷修复

    公开(公告)号:US20150190891A1

    公开(公告)日:2015-07-09

    申请号:US14418675

    申请日:2013-07-19

    Abstract: A method of repairing defects in a casting formed from non-weldable or difficult-to-weld alloys is disclosed. The method includes removing the defect from the casting thereby forming a cavity in the casting, placing a filler material in the cavity and fusion welding the filler material in the cavity. The fusion welding produces surface cracks on the casting and sub-surface cracks in the casting. The method then includes brazing at least some of the surface cracks on the casting and processing the casting with a hot isostatic pressure (HIP) process to close at least some of the sub-surface cracks in the casting.

    Abstract translation: 公开了一种修复由不可焊接或难焊接合金形成的铸件中的缺陷的方法。 该方法包括从铸造中去除缺陷,从而在铸件中形成空腔,将填充材料放置在空腔中并将填充材料熔合在空腔中。 熔焊在铸件中产生表面裂纹和铸件表面裂纹。 该方法然后包括在铸造上钎焊至少一些表面裂纹并用热等静压(HIP)工艺处理铸件,以关闭铸件中的至少一些次表面裂纹。

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