Invention Grant
- Patent Title: Control of solidification in laser powder bed fusion additive manufacturing using a diode laser fiber array
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Application No.: US15014713Application Date: 2016-02-03
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Publication No.: US10532556B2Publication Date: 2020-01-14
- Inventor: William Thomas Carter , Marshall Gordon Jones , Lang Yuan , Ning Zhou , Steven Jude Duclos
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Armstrong Teasdale LLP
- Main IPC: B33Y80/00
- IPC: B33Y80/00 ; B23K26/00 ; B23P6/00 ; B33Y10/00 ; B22F3/105 ; B22F5/00 ; B23K26/06 ; B23K26/073 ; B28B1/00 ; B29C73/00 ; B23K26/34 ; B29C73/34 ; B33Y30/00 ; F01D5/00 ; B22F5/04 ; C30B11/00 ; C30B13/06 ; C30B13/24 ; C30B13/30 ; C30B13/32 ; C30B29/52 ; B29C64/153 ; B29C64/20 ; G02B6/42 ; B29K105/00 ; B29L31/08 ; B23K101/00 ; B23K103/18
Abstract:
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.
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