US 12,290,987 B2
Additive manufacturing methods and systems
Juergen Werner, Lichtenfels (DE); Jan Michael Friese, Erlangen (DE); Christian Wacker, Bamberg (DE); Patrick Dueck, Weismain (DE); Kai Hertel, Breitengussbach (DE); Benedikt Roidl, Munich (DE); Dominic Graf, Weitramsdorf (DE); Florian Bechmann, Lichtenfels (DE); and Johannes Stroessner, Kulmbach (DE)
Assigned to Concept Laser GmbH, Lichtenfels (DE); and GE Additive Germany GmbH, Frankfurt (DE)
Filed by Concept Laser GmbH, Lichtenfels (DE); and GE Additive Germany GmbH, Frankfurt (DE)
Filed on Feb. 21, 2023, as Appl. No. 18/171,985.
Prior Publication US 2024/0278495 A1, Aug. 22, 2024
Int. Cl. B22F 10/20 (2021.01); B22F 10/22 (2021.01); B22F 10/25 (2021.01); B22F 10/28 (2021.01); B22F 10/30 (2021.01); B22F 10/366 (2021.01); B22F 10/368 (2021.01); B22F 10/80 (2021.01); B22F 10/85 (2021.01); B22F 12/40 (2021.01); B22F 12/45 (2021.01); B22F 12/90 (2021.01); B28B 1/00 (2006.01); B29C 64/153 (2017.01); B29C 64/264 (2017.01); B29C 64/268 (2017.01); B29C 64/277 (2017.01); B29C 64/282 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); C04B 35/64 (2006.01); G05B 19/4099 (2006.01)
CPC B29C 64/268 (2017.08) [B22F 10/28 (2021.01); B22F 10/366 (2021.01); B22F 12/45 (2021.01); B28B 1/001 (2013.01); 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); G05B 2219/49018 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of additively manufacturing a three-dimensional object by one or more energy beams, the method comprising:
selectively directing a first energy beam across a powder bed along a plurality of first hatching paths and a first contour path that defines a first outer contour portion and a first stitching portion, wherein the first outer contour portion at least partially defines a first edge portion of an outer edge of the three-dimensional object, and wherein the first edge portion is non-linear; and
selectively directing a second energy beam across the powder bed along a plurality of second hatching paths and a second contour path that at least partially defines a second edge portion of the outer edge of the three-dimensional object, wherein the second edge portion is adjacent the first edge portion, and wherein the first stitching portion extends into the plurality of second hatching paths along a non-linear stitching path.