US 12,479,029 B2
Method for selectively irradiating a powder layer in additive manufacturing with a first and a second irradiation pattern
Jan Pascal Bogner, Berlin (DE); Simon Purschke, Berlin (DE); and Julius Schurb, Berlin (DE)
Assigned to Siemens Energy Global GmbH & Co. KG, Bayern (DE)
Appl. No. 17/775,282
Filed by Siemens Energy Global GmbH & Co. KG, Bayern (DE)
PCT Filed Oct. 7, 2020, PCT No. PCT/EP2020/078083
§ 371(c)(1), (2) Date May 7, 2022,
PCT Pub. No. WO2021/104730, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 10 2019 218 377.8 (DE), filed on Nov. 27, 2019.
Prior Publication US 2022/0388067 A1, Dec. 8, 2022
Int. Cl. B33Y 10/00 (2015.01); B22F 10/28 (2021.01); B22F 10/366 (2021.01); B23K 15/00 (2006.01); B23K 26/0622 (2014.01); B23K 26/342 (2014.01)
CPC B22F 10/366 (2021.01) [B22F 10/28 (2021.01); B23K 15/0086 (2013.01); B23K 26/0622 (2015.10); B23K 26/342 (2015.10); B33Y 10/00 (2014.12)] 8 Claims
OG exemplary drawing
 
1. A method for selectively irradiating a powder layer in the additive production of a component, comprising:
defining an irradiation pattern of the layer for the additive production, wherein a first partial pattern which is intended for continuous irradiation and comprises a multiplicity of irradiation vectors is defined, and wherein a second partial pattern which is intended for pulsed irradiation is defined, the first and the second partial patterns being selected in such a way that the second partial pattern connects irradiation vectors of the first partial pattern, and
irradiating the layer according to the defined irradiation pattern, wherein a beam melting track of regions of the layer which are irradiated with pulses respectively overlaps in a plan view of the layer with beam melting tracks of neighboring regions of the layer which are irradiated continuously, and wherein beam melting tracks of neighboring regions of the layer which are irradiated continuously do not overlap in a plan view of the layer.