US 11,945,159 B2
Method and apparatus for controlling the exposure of a selective laser sintering or laser melting apparatus
Frank Herzog, Lichtenfels (DE); Florian Bechmann, Lichtenfels (DE); Markus Lippert, Lichtenfels (DE); Johanna Hoch, Breitbrunn (DE); Alexey Tarasov, Redwitz an der Rodach (DE); and Fabian Zeulner, Lichtenfels (DE)
Assigned to Concept Laser GmbH, Lichtenfels (DE)
Filed by Concept Laser GmbH, Lichtenfels (DE)
Filed on Oct. 16, 2020, as Appl. No. 17/072,137.
Application 16/007,813 is a division of application No. 15/526,711, granted, now 10,137,633, issued on Nov. 27, 2018, previously published as PCT/EP2015/075832, filed on Nov. 5, 2015.
Application 17/072,137 is a continuation of application No. 16/007,813, filed on Jun. 13, 2018, granted, now 10,836,103.
Claims priority of application No. 1102014016679.1 (DE), filed on Nov. 12, 2014.
Prior Publication US 2021/0101333 A1, Apr. 8, 2021
Int. Cl. B29C 64/153 (2017.01); B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/366 (2021.01); B22F 12/49 (2021.01); B23K 26/06 (2014.01); B23K 26/08 (2014.01); B29C 64/277 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); G02B 26/10 (2006.01); H01S 3/101 (2006.01); H01S 3/102 (2006.01); B22F 12/90 (2021.01)
CPC B29C 64/153 (2017.08) [B22F 10/00 (2021.01); B22F 10/28 (2021.01); B22F 10/366 (2021.01); B22F 12/49 (2021.01); B23K 26/0604 (2013.01); B29C 64/277 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); G02B 26/10 (2013.01); H01S 3/101 (2013.01); H01S 3/102 (2013.01); B22F 12/90 (2021.01); Y02P 10/25 (2015.11)] 20 Claims
OG exemplary drawing
 
1. A method of additively manufacturing a three-dimensional object, the method comprising:
allocating irradiation of respective ones of a plurality of sequential layers of construction material between a first region and a second region based at least in part on a first irradiation time and/or a second irradiation time;
wherein irradiation of the first region is allocated to a first scanner and the first irradiation time is indicative of a time required for the first scanner to irradiate the first region with respect to at least one of the plurality of sequential layers of construction material;
wherein irradiation of the second region is allocated to a second scanner and the second irradiation time is indicative of a time required for the second scanner to irradiate the second region with respect to at least one of the plurality of sequential layers of construction material; and
wherein the first irradiation time and the second irradiation time are at least approximately the same.