-
1.
公开(公告)号:US20200180297A1
公开(公告)日:2020-06-11
申请号:US16704831
申请日:2019-12-05
IPC分类号: B33Y80/00 , G02B6/42 , B29C64/153 , B29C64/20 , C30B13/32 , C30B11/00 , C30B13/24 , C30B13/30 , C30B29/52 , C30B13/06 , B22F5/04 , F01D5/00 , B28B1/00 , B22F5/00 , B23K26/34 , B23K26/073 , B29C73/00 , B23K26/06 , B33Y30/00 , B29C73/34 , B22F3/105 , B33Y10/00 , B23P6/00 , B23K26/00
摘要: A method of method of forming or repairing a superalloy article having a columnar or equiaxed or directionally solidified or amorphous or single crystal microstructure includes emitting a plurality of laser beams from selected fibers of a diode laser fiber array corresponding to a pattern of a layer of the article onto a powder bed of the superalloy to form a melt pool; and controlling a temperature gradient and a solidification velocity of the melt pool to form the columnar or single crystal microstructure.