公开(公告)号：US20190217385A1

公开(公告)日：2019-07-18

申请号：US15870235

申请日：2018-01-12

Applicant: General Electric Company

Inventor： Carlos Humberto Bonilla Gonzalez ,  Vadim Bromberg ,  Christopher A. Panczyk ,  Arunkumar Natarajan ,  Waseem Faidi ,  William T. Carter

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B22F3/10 ,  B22F3/00 ,  B23K26/354 ,  B23K26/34

CPC classification number: B22F3/1055 ,  B22F3/008 ,  B22F3/1007 ,  B22F2003/1056 ,  B23K26/34 ,  B23K26/354 ,  B29C64/153 ,  B29C64/165 ,  B29C64/205 ,  B33Y10/00 ,  B33Y30/00

Abstract: The subject matter disclosed herein relates to additive manufacturing techniques, and more specifically, to additive manufacturing techniques that involve binder jet printing. A disclosed additive manufacturing system for fabricating an article includes a build unit and a positioning system operably coupled to the build unit. The positioning system is configured to move the build unit in at least three dimensions. The build unit includes a recoater portion configured to deposit a layer of powder within a build area of the additive manufacturing system. The build unit also includes a binder jetting portion configured to selectively deposit and cure a binder within a periphery of the deposited layer of powder to form a dynamic build envelope around the article being fabricated in the build area.