US 11,904,545 B2
Apparatus for additively manufacturing three-dimensional objects
Tobias Bokkes, Untersiemau (DE); Philipp Schumann, Itzgrund-Schottenstein (DE); Stephan Hunze, Pirna (DE); Tim Klaußner, Kronach (DE); Fabian Zeulner, Lichtenfels (DE); and Marie-Christin Ebert, Coburg (DE)
Assigned to CONCEPT LASER GMBH, Lichtenfels (DE)
Filed by CONCEPT LASER GMBH, Lichtenfels (DE)
Filed on Oct. 16, 2018, as Appl. No. 16/162,274.
Claims priority of application No. 17206268 (EP), filed on Dec. 8, 2017.
Prior Publication US 2019/0176396 A1, Jun. 13, 2019
Int. Cl. B29C 64/268 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/153 (2017.01); B29C 64/30 (2017.01); B33Y 40/00 (2020.01); B29C 64/386 (2017.01); B33Y 50/00 (2015.01); B22F 10/28 (2021.01); B22F 12/44 (2021.01); B22F 10/31 (2021.01); B29C 64/286 (2017.01); B22F 10/14 (2021.01); B22F 12/41 (2021.01); B22F 12/90 (2021.01); B22F 10/32 (2021.01)
CPC B29C 64/268 (2017.08) [B22F 10/28 (2021.01); B22F 10/31 (2021.01); B22F 12/44 (2021.01); B29C 64/153 (2017.08); B29C 64/286 (2017.08); B29C 64/30 (2017.08); B29C 64/386 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/00 (2014.12); B22F 10/14 (2021.01); B22F 10/32 (2021.01); B22F 12/41 (2021.01); B22F 12/90 (2021.01); B22F 2999/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for additively manufacturing three-dimensional objects, the apparatus comprising:
an energy beam comprising:
a first beam part split from the energy beam reflected by an at least one beam guiding element, the first beam part extending from the at least one beam guiding element to a build plane; and
a second beam part split from the energy beam transmitted through or scattered by the at least one beam guiding element, the second beam part extending from the at least one beam guiding element to a determination device;
an irradiation device comprising the at least one beam guiding element, the at least one beam guiding element configured to partially reflect the energy beam; and
the determination device adapted to determine, based on the second beam part, at least one energy beam parameter, wherein the at least one energy beam parameter comprises at least one of:
a focal position of the energy beam; or
a focal shift of the energy beam.