US 11,858,206 B2
Defect mitigation for recoating systems for additive manufacturing
Matthew Sweetland, Bedford, MA (US)
Assigned to VulcanForms Inc., Burlington, MA (US)
Filed by VulcanForms Inc., Burlington, MA (US)
Filed on Feb. 1, 2023, as Appl. No. 18/104,537.
Application 18/104,537 is a division of application No. 17/461,077, filed on Aug. 30, 2021, granted, now 11,602,891.
Claims priority of provisional application 63/074,752, filed on Sep. 4, 2020.
Prior Publication US 2023/0182380 A1, Jun. 15, 2023
Int. Cl. B29C 64/218 (2017.01); B29C 64/153 (2017.01); B29C 64/214 (2017.01); B29C 64/236 (2017.01); B29C 64/232 (2017.01); B33Y 40/00 (2020.01); B29C 64/35 (2017.01); B29C 64/364 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/286 (2017.01)
CPC B29C 64/153 (2017.08) [B29C 64/214 (2017.08); B29C 64/218 (2017.08); B29C 64/232 (2017.08); B29C 64/236 (2017.08); B29C 64/286 (2017.08); B29C 64/35 (2017.08); B29C 64/364 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12)] 26 Claims
OG exemplary drawing
 
1. A method of recoating a build surface of an additive manufacturing system, the method comprising:
depositing powder onto the build surface with a recoater assembly; and
flowing a fluid across at least a portion of the build surface with a velocity profile that increases with increasing distance from the build surface, and
entraining powder above a threshold height from the build surface in the flow of fluid.