公开(公告)号：US20210402691A1

公开(公告)日：2021-12-30

申请号：US17354943

申请日：2021-06-22

Applicant: SLM Solutions Group AG

Inventor： Daniel Brück ,  Zhuo Peng ,  Naveed Iqbal ,  Torsten Kuntoff ,  Hendrik Jargstorf

IPC: B29C64/25 ,  B29C64/245 ,  B29C64/264 ,  B29C64/364 ,  B29C64/153

Abstract: A process chamber housing for an additive manufacturing apparatus comprising a process chamber with a bottom, a ceiling, and sidewalls jointly enclosing a volume of the process chamber, with a gas inlet in a front wall and a gas outlet in a rear wall of the sidewalls. The gas inlet and outlet are positioned at opposite sides of an opening in the bottom and face each other, which allows for an improved removal of smoke out of the process chamber if the gas inlet has a width wi, the opening has a width ws, and the gas outlet has a width w0, such that at least one of the relations (i) wi≥ws±4 cm and w0≥ws±4 cm; (ii) wi≥ws and/or w0≥ws; and (iii) wi≥ws+1 cm and/or w0≥ws+1 cm is satisfied.

公开(公告)号：US11731356B2

公开(公告)日：2023-08-22

申请号：US17354943

申请日：2021-06-22

Applicant: SLM Solutions Group AG

Inventor： Daniel Brück ,  Zhuo Peng ,  Naveed Iqbal ,  Torsten Kuntoff ,  Hendrik Jargstorf

IPC: B29C64/25 ,  B29C64/153 ,  B33Y30/00 ,  B29C64/264 ,  B29C64/364 ,  B29C64/245 ,  B33Y40/20

CPC classification number: B29C64/25 ,  B29C64/153 ,  B29C64/245 ,  B29C64/264 ,  B29C64/364 ,  B33Y30/00 ,  B33Y40/20

Abstract: A process chamber housing for an additive manufacturing apparatus comprising a process chamber with a bottom, a ceiling, and sidewalls jointly enclosing a volume of the process chamber, with a gas inlet in a front wall and a gas outlet in a rear wall of the sidewalls. The gas inlet and outlet are positioned at opposite sides of an opening in the bottom and face each other, which allows for an improved removal of smoke out of the process chamber if the gas inlet has a width wi, the opening has a width ws, and the gas outlet has a width w0, such that at least one of the relations (i) wi≥ws±4 cm and wo≥ws±4 cm; (ii) wi≥ws and/or wo≥ws; and (iii) wi≥ws+1 cm and/or wo≥ws+1 cm is satisfied.