公开(公告)号：US20180161873A1

公开(公告)日：2018-06-14

申请号：US15882870

申请日：2018-01-29

Applicant: nLIGHT, Inc.

Inventor： Aaron Brown ,  Keith Kennedy ,  David Dawson ,  Robert Martinsen ,  Roger Farrow ,  Dahv A. V. Kliner

IPC: B22F3/105 ,  G03F7/00

CPC classification number: B22F3/1055 ,  B22F2998/10 ,  B22F2999/00 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  G03F7/0037 ,  B22F2003/248 ,  B22F2207/11 ,  B22F2203/11

Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.

公开(公告)号：US10668535B2

公开(公告)日：2020-06-02

申请号：US15882870

申请日：2018-01-29

Applicant: nLIGHT, Inc.

Inventor： Aaron Brown ,  Keith Kennedy ,  David Dawson ,  Robert Martinsen ,  Roger Farrow ,  Dahv A. V. Kliner

IPC: B22F3/10 ,  B22F3/105 ,  G03F7/00 ,  B33Y10/00 ,  B33Y80/00 ,  B33Y30/00 ,  B29C64/153

Abstract: A method of making a three-dimensional object. The method comprises: a) positioning a layer of particles over a build plate; b) exposing the layer of particles to a first laser beam having a first set of beam characteristics, thereby heating the layer sufficiently to fuse at least a portion of the particles together to form a build layer; c) exposing a first region of one of i) the layer of particles or ii) the build layer to a second laser beam having a second set of beam characteristics to provide a first temperature profile for the first region; and d) exposing a second region of one of i) the layer of particles or ii) the build layer to a third laser beam having a third set of beam characteristics to provide a second temperature profile for the second region, the second temperature profile being different than the first temperature profile, wherein both the first region and the second region are in the layer of particles or both the first region and the second region are in the build layer.