US 12,280,424 B2
Process monitoring and feedback for metal additive manufacturing using powder-bed fusion
Derek Schmuland, El Segundo, CA (US); Thomas J Ronacher, Los Angeles, CA (US); and Erik Palitsch, Manhattan Beach, CA (US)
Assigned to Freeform Future Corp., Hawthorne, CA (US)
Filed by Freeform Future Corp., Hawthorne, CA (US)
Filed on Nov. 29, 2023, as Appl. No. 18/523,608.
Application 18/523,608 is a continuation of application No. 16/773,876, filed on Jan. 27, 2020, granted, now 11,839,914.
Claims priority of provisional application 62/943,473, filed on Dec. 4, 2019.
Claims priority of provisional application 62/799,709, filed on Jan. 31, 2019.
Prior Publication US 2024/0207935 A1, Jun. 27, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B33Y 50/02 (2015.01); B22F 10/10 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); G06F 17/14 (2006.01)
CPC B22F 10/10 (2021.01) [B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); G06F 17/142 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of metal additive manufacturing, comprising:
depositing a first layer of powdered metal in a powder bed;
directing a plurality of laser beams to selected portions of the first layer;
monitoring the powder bed while directing the plurality of laser beams to the selected portions of the first layer;
depositing a second layer of powdered metal in the powder bed, above the first layer;
based on the monitoring, adjusting settings of the plurality of laser beams; and
directing the plurality of laser beams, with the adjusted settings, to selected portions of the second layer.