公开(公告)号：US20190143444A1

公开(公告)日：2019-05-16

申请号：US15811293

申请日：2017-11-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Justin MAMRAK ,  MacKenzie Ryan REDDING ,  Thomas Graham SPEARS ,  Mark Kevin MEYER

IPC: B23K15/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B23K15/08 ,  B23K26/082 ,  B23K26/342 ,  B23K35/02

Abstract: The present disclosure generally relates to methods and apparatuses for additive manufacturing using foil-based build materials. Such methods and apparatuses eliminate several drawbacks of conventional powder-based methods, including powder handling, recoater jams, and health risks. In addition, the present disclosure provides methods and apparatuses for compensation of in-process warping of build plates and foil-based build materials.

公开(公告)号：US20180214946A1

公开(公告)日：2018-08-02

申请号：US15423160

申请日：2017-02-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Thomas Graham SPEARS

IPC: B22F3/00 ,  B29C67/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/342 ,  B23K15/00

Abstract: In an aspect, the present disclosure relates to an apparatus for fabricating an object layer by layer. The apparatus includes a sheet dispenser to stack sheets of bound powder. The apparatus also includes a directed energy source configured to selectively fuse at least a portion of the bound powder to form one or more fused regions.

公开(公告)号：US20180200794A1

公开(公告)日：2018-07-19

申请号：US15409214

申请日：2017-01-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Thomas Graham SPEARS

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B23K26/03 ,  B33Y50/02 ,  B23K26/342 ,  G01N21/33 ,  G01N21/88

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G01N21/718 ,  G01N21/8422 ,  G01N21/8806 ,  G01N2021/8438 ,  G01N2021/8845 ,  Y02P10/295

Abstract: Some aspects of the present disclosure provide a method of detecting defects in a continuous build process. The method includes applying a layer of powder to a build surface. The method includes fusing at least a portion of the powder layer to form a portion of a part. The method includes detecting a particular band of electromagnetic radiation produced by the fusing. In an aspect, the particular band of electromagnetic radiation is ultraviolet (UV) radiation.

公开(公告)号：US20180236549A1

公开(公告)日：2018-08-23

申请号：US15438311

申请日：2017-02-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Thomas Graham SPEARS ,  Rachel LEVINE

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C67/00 ,  B28B1/00 ,  B28B17/00 ,  B23K15/00 ,  B23K26/06 ,  B23K26/342

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/20 ,  B29C64/386 ,  B29K2105/251 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295 ,  B22F3/004

Abstract: The present invention is related to additive manufacturing methods and systems using a recoater with in-situ exchangeable recoater blades. Being able to switch out recoater blades in situ, i.e. without stopping the build and opening up the build chamber, is advantageous, especially for larger, more complicated, and/or longer builds. For instance, if a recoater blade becomes damaged, a new one can be readily swapped in. Or if a different material for the object(s) is used during the build, it may be advantageous to switch in a new recoater blade that is made of the new, different material.