公开(公告)号：US11433616B2

公开(公告)日：2022-09-06

申请号：US16044402

申请日：2018-07-24

申请人： CONCEPT LASER GMBH

发明人： Wolfgang Lauer ,  Christian Diller ,  Viktor Engel ,  Andreas Ullrich ,  Jens Stammberger

IPC分类号： B29C64/35 ,  B29C64/364 ,  B29C64/153 ,  B29C64/371 ,  B22F10/20 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B23K26/142 ,  B23K26/342 ,  B29C64/393 ,  B28B1/00 ,  B28B17/00 ,  B22F10/30

摘要： Apparatus (1) for additively manufacturing three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a powdered build material (3) which can be consolidated by means of an energy beam (4), the apparatus (1) comprising a process chamber (8) and a stream generating device (9) configured to generate a gaseous fluid stream at least partly streaming through the process chamber (8), the gaseous fluid stream being capable of being charged with non-consolidated particulate build material, particularly smoke or smoke residues generated during operation of the apparatus (1), while streaming through the process chamber (8), wherein the stream generating (9) device comprises at least two separate stream generating units (13, 14) each being configured to generate a respective gaseous fluid stream.