REPAIR OF CASTING DEFECTS
    3.
    发明申请
    REPAIR OF CASTING DEFECTS 审中-公开
    修复铸造缺陷

    公开(公告)号:WO2014051830A1

    公开(公告)日:2014-04-03

    申请号:PCT/US2013/051279

    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化在空腔中。 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。

    LASER CLADDING SYSTEM AND METHOD
    6.
    发明公开

    公开(公告)号:EP3330038A1

    公开(公告)日:2018-06-06

    申请号:EP17203892.9

    申请日:2017-11-27

    Abstract: A laser cladding head (12) comprises a protective housing (18), a focal array (26), a turning mirror (36), and a powder nozzle (34). The housing (18) extends along a primary axis (A P ) from a proximal end (20) to a distal end (22). The focal array (26) is situated at the proximal end (20) and oriented to receive and focus collimated light (28) in a beam (28) directed substantially along the primary axis (Ap). The turning mirror (30) is situated at the distal end (22) and disposed to redirect the beam (28) in an emission direction, towards a target point (P T ) separated from the turning mirror (30) by a working distance (D T ) of at most a tenth the focal length. The turning mirror (30) is a nonfocal reflective surface indexable to alter an impingement location (P I ) of the beam (28) on the turning mirror (30). The powder nozzle (34) is situated at the distal end (22) and receives and directs weld material towards the target point (P T ) for melting.

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