US 11,850,794 B2
Powder removal
David W. Morganson, Marlborough, CT (US); Brendan T. Gustafson, East Hartford, CT (US); and Jason J. Purdy, East Hartford, CT (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on May 12, 2022, as Appl. No. 17/742,508.
Application 17/742,508 is a division of application No. 16/454,708, filed on Jun. 27, 2019, granted, now 11,331,860.
Prior Publication US 2022/0266519 A1, Aug. 25, 2022
Int. Cl. B29C 64/153 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B29C 64/20 (2017.01); B29C 64/35 (2017.01); B33Y 40/20 (2020.01); B22F 10/28 (2021.01); B22F 10/73 (2021.01); B22F 12/20 (2021.01)
CPC B29C 64/153 (2017.08) [B22F 10/28 (2021.01); B22F 10/73 (2021.01); B22F 12/20 (2021.01); B29C 64/20 (2017.08); B29C 64/35 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 40/20 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A method comprising:
building a part using laser powder bed fusion (LPBF) within a containment volume;
removing unfused powder from the containment volume to a collection volume by force of gravity;
wet trapping the unfused powder in the collection volume; and
capturing moisture from wet trapping to prevent the moisture from reaching the part in the containment volume.