公开(公告)号：US20180117854A1

公开(公告)日：2018-05-03

申请号：US15341441

申请日：2016-11-02

Applicant: General Electric Company

Inventor： Kassy Moy Hart ,  Chad Joseph Dulkiewicz ,  Archie Lee Swanner, JR. ,  Russell Dwayne Yates

IPC: B29C67/00 ,  B22F3/105 ,  B33Y30/00

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2207/20 ,  B22F2999/00 ,  B29C64/153 ,  B29C64/20 ,  B33Y30/00 ,  Y02P10/295

Abstract: Various embodiments include a build plate for additive manufacturing, along with a related system. The build plate may include: a first build surface having at least one recess therein; and at least one block configured to matingly engage with, and disengage with, the at least one recess, the block including a second build surface.

公开(公告)号：US20170182594A1

公开(公告)日：2017-06-29

申请号：US15040039

申请日：2016-02-10

Applicant: General Electric Company

Inventor： Donnell Eugene Crear ,  Chad Joseph Dulkiewicz ,  Archie Lee Swanner, JR.

IPC: B23K26/14 ,  B23K26/12 ,  B33Y50/02 ,  B23K26/342 ,  B33Y10/00 ,  B33Y30/00

Abstract: A metal powder additive manufacturing system and method are disclosed that use increased trace amounts of oxygen to improve physical attributes of an object. The system may include: a processing chamber; a metal powder bed within the processing chamber; a melting element configured to sequentially melt layers of metal powder on the metal powder bed to generate an object; and a control system configured to control a flow of a gas mixture within the processing chamber from a source of inert gas and a source of an oxygen containing material, the gas mixture including the inert gas and oxygen from the oxygen containing material. The method may result in an object having a surface porosity of no greater than approximately 0.1%, and an effective density of greater than approximately 99.9%.