公开(公告)号：US20200298341A1

公开(公告)日：2020-09-24

申请号：US16798505

申请日：2020-02-24

Applicant: General Electric Company

Inventor： Todd Jay Rockstroh ,  Michael Francis Xavier Gigliotti ,  William Thomas Carter ,  David Henry Abbott ,  Rajendra Machukar Kelkar

IPC: B23K26/342 ,  C30B29/52 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/105 ,  C30B11/00 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/70 ,  B23K26/08 ,  C30B11/02 ,  C30B28/06 ,  H05B3/00 ,  H05B6/10

Abstract: A method of making a component includes: depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.

公开(公告)号：US10569362B2

公开(公告)日：2020-02-25

申请号：US15036456

申请日：2014-11-12

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Todd Jay Rockstroh ,  Michael Francis Xavier Gigliotti ,  William Thomas Carter ,  David Henry Abbott ,  Rajendra Machukar Kelkar

IPC: B23K26/34 ,  B23K26/08 ,  B23K26/342 ,  C30B29/52 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B23K26/144 ,  B23K26/70 ,  C30B11/00 ,  C30B11/02 ,  C30B28/06 ,  H05B3/00 ,  H05B6/10

Abstract: A method of making a component includes depositing a metallic powder on a workplane; directing a beam from a directed energy source to fuse the powder in a pattern corresponding to a cross-sectional layer of the component; repeating in a cycle the steps of depositing and fusing to build up the component in a layer-by layer fashion; and during the cycle of depositing and melting, using an external heat control apparatus separate from the directed energy source to maintain a predetermined temperature profile of the component, such that the resulting component has a directionally-solidified or single-crystal microstructure.