公开(公告)号：US20190084222A1

公开(公告)日：2019-03-21

申请号：US15711808

申请日：2017-09-21

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Lucas JONES ,  Justin MAMRAK

IPC: B29C64/135 ,  B33Y50/02 ,  B23K26/082 ,  G03F7/00 ,  B22F3/00

Abstract: A method, apparatus, and program for additive manufacturing. In one aspect, the method and program comprises forming an at least partially solidified portion within a first scan region by irradiating a build material at a first energy density value along a first irradiation path. A second at least partially solidified portion is formed within a second scan region that is spaced with respect to the first scan region, wherein the solidified portion within the first scan region is formed by irradiation a build material at a second energy density value along a second irradiation path. The space between the first scan region and the second scan region is at least partially solidified by irradiating a build material at a third energy density value that less than the first energy density value and the second energy density value.