公开(公告)号：US20180079148A1

公开(公告)日：2018-03-22

申请号：US15268192

申请日：2016-09-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Stephen Michael DEAK ,  Daniel JOERGER ,  Travis SANDS

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B33Y10/00 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B29C64/135 ,  B29C64/153 ,  B29C64/264 ,  B29K2105/0058 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: The present disclosure generally relates to methods and apparatuses for additive manufacturing (AM) that utilize a pulsed laser to solidify a liquid photopolymer. The method includes scanning a first portion of the photopolymer with the laser at a first draw speed, wherein the first portion of the photopolymer corresponds to a first portion of the part that has a width less than a threshold width. The method also includes scanning a second portion of the photopolymer with the laser at a second draw speed that is greater than the first draw speed, wherein the second portion of the photopolymer corresponds to a second portion of the part that has a width greater than the threshold width.