US 12,257,779 B2
Controlling irradiation parameters of an additive manufacturing machine
René Kopatsch, Lichtenfels (DE); Martin Proebstle, Lichtenfels (DE); and Dominic Graf, Weitramsdorf (DE)
Assigned to Concept Laser GmbH, Lichtenfels (DE)
Filed by Concept Laser GmbH, Lichtenfels (DE)
Filed on Aug. 27, 2021, as Appl. No. 17/459,040.
Claims priority of provisional application 63/079,545, filed on Sep. 17, 2020.
Prior Publication US 2022/0080661 A1, Mar. 17, 2022
Int. Cl. B29C 64/268 (2017.01); B29C 64/153 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B22F 10/28 (2021.01); B22F 10/366 (2021.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01)
CPC B29C 64/268 (2017.08) [B29C 64/153 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] 19 Claims
OG exemplary drawing
 
18. An additive manufacturing system, comprising:
an energy beam system; and
a control system comprising an irradiation controller;
wherein the irradiation controller comprises a control module configured to perform a method of additively manufacturing a three-dimensional object, the method comprising:
determining a plurality of scanning segments for a build plane and/or for one or more object layers respectively corresponding to one or more regions of a powder bed defining the build plane;
determining at least one irradiation vector for irradiating respective ones of the plurality of scanning segments with an energy beam, wherein the at least one irradiation vector determined for the respective ones of the plurality of scanning segments comprises a hatching vector and/or a plurality of scanning vectors defining the hatching vector, wherein the hatching vector and/or the plurality of scanning vectors defining the hatching vector are oriented away from a normal point on the build plane corresponding to the energy beam; and
outputting an irradiation control command to an energy beam system based at least in part on the plurality of scanning segments and/or the at least one irradiation vector for irradiating respective ones of the plurality of scanning segments, wherein a number of scanning segments per unit area of the build plane and/or per unit area of the one or more object layers depends at least in part on a distance from the normal point and/or on an angle of incidence of the energy beam.