US 11,981,081 B2
Powder removal systems and assemblies for additive manufacturing
Stefaan Van Nieuwenhove, Hohenkammer (DE); Sultan Shair, Ismaning (DE); Thomas Kluge, Lenggries (DE); Alexander Hofmann, Lichtenfels (DE); Rene Hertha, Lichtenfels (DE); Alex W. Ariapad, West Chester, OH (US); Hojjat Nasr, West Chester, OH (US); Johannes Hornof, Erding (DE); and Nikolaus Mroncz, Dorfen (DE)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jan. 19, 2021, as Appl. No. 17/152,214.
Prior Publication US 2022/0227053 A1, Jul. 21, 2022
Int. Cl. B29C 64/35 (2017.01); B22F 10/68 (2021.01); B22F 10/73 (2021.01); B29C 64/357 (2017.01); B29C 64/393 (2017.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01)
CPC B29C 64/35 (2017.08) [B22F 10/68 (2021.01); B22F 10/73 (2021.01); B29C 64/357 (2017.08); B29C 64/393 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] 20 Claims
OG exemplary drawing
 
1. A powder removal system comprising:
a build module comprising module sidewalls and a moveable build plate slidably coupled to the module sidewalls; and
an extraction housing removably engaged with the module sidewalls of the build module, the extraction housing comprising:
one or more sidewalls comprising one or more sidewall fluid flow channels extending through the one or more sidewalls of the extraction housing; and
a top wall coupled to the one or more sidewalls of the extraction housing, wherein the one or more sidewall fluid flow channels extend from a position proximate a base of the one or more sidewalls of the extraction housing to the top wall,
wherein the extraction housing defines a turbulence chamber between the moveable build plate of the build module, the one or more sidewalls of the extraction housing, and the top wall of the extraction housing.