公开(公告)号：EP4420811A1

公开(公告)日：2024-08-28

申请号：EP24155930.1

申请日：2024-02-06

申请人： Concept Laser GmbH ,  GE Additive Germany GmbH

发明人： Werner, Jürgen ,  Friese, Jan Michael ,  Wacker, Christian ,  Dueck, Patrick ,  Hertel, Kai ,  Roidl, Benedikt ,  Graf, Dominic ,  Bechmann, Florian ,  Stroessner, Johannes

IPC分类号： B22F10/28 ,  B22F10/366 ,  B22F12/45 ,  B29C64/153 ,  B29C64/282 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

CPC分类号： B22F10/28 ,  B22F12/45 ,  B22F10/366 ,  B33Y10/00 ,  B33Y80/00 ,  B29C64/393 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/282

摘要： A method (300) of additively manufacturing a three-dimensional object (114) by one or more energy beams (134). The method (300) includes selectively directing a first energy beam (134a) across a powder bed (134) along a plurality of first hatching paths (151a) and a first contour path (190) that defines a first outer contour portion (192) and a first stitching portion (194), wherein the first outer contour portion (192) at least partially defines a first edge portion (153a) of an outer edge (153) of the three-dimensional object (114), and wherein the first edge portion (153a) is non-linear. The method (300) further includes selectively directing a second energy beam (134b) across the powder bed (134) along a plurality of second hatching paths (151b) and a second contour path (210) that at least partially defines a second edge portion (153b) of the outer edge (153) of the three-dimensional object (114), wherein the second edge portion (153b) is adjacent the first edge portion (153a), and wherein the first stitching portion (194) extends into the plurality of second hatching paths (153b) along a non-linear stitching path (200).