US 11,692,876 B2
Optical manufacturing process sensing and status indication system
Vivek R. Dave, Concord, NH (US); Mark J. Cola, Santa Fe, NM (US); R. Bruce Madigan, Butte, MT (US); Martin S. Piltch, Los Alamos, NM (US); and Alberto Castro, Santa Fe, NM (US)
Assigned to Sigma Additive Solutions, Inc., Santa Fe, NM (US)
Filed by SIGMA LABS, INC., Santa Fe, NM (US)
Filed on Jul. 9, 2021, as Appl. No. 17/372,321.
Application 17/372,321 is a continuation of application No. 16/678,945, filed on Nov. 8, 2019, granted, now 11,073,431.
Application 16/678,945 is a continuation of application No. 16/434,577, filed on Jun. 7, 2019, granted, now 10,520,372, issued on Dec. 31, 2019.
Application 16/434,577 is a continuation of application No. 15/276,452, filed on Sep. 26, 2016, granted, now 10,317,294, issued on Jun. 11, 2019.
Application 15/276,452 is a continuation of application No. PCT/US2015/022539, filed on Mar. 25, 2015.
Claims priority of provisional application 61/970,407, filed on Mar. 26, 2014.
Prior Publication US 2021/0404886 A1, Dec. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G01J 3/28 (2006.01); G01N 21/71 (2006.01); G01J 3/443 (2006.01); B22F 10/28 (2021.01); B22F 12/90 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01); B23K 26/342 (2014.01); B23K 26/70 (2014.01); B23K 9/04 (2006.01); B23K 9/095 (2006.01); B23K 10/02 (2006.01); B23K 15/00 (2006.01); G01K 13/00 (2021.01); B22F 10/25 (2021.01); B22F 10/34 (2021.01)
CPC G01J 3/28 (2013.01) [B22F 10/28 (2021.01); B22F 12/90 (2021.01); B23K 9/04 (2013.01); B23K 9/095 (2013.01); B23K 9/0953 (2013.01); B23K 9/0956 (2013.01); B23K 10/027 (2013.01); B23K 15/0026 (2013.01); B23K 15/0086 (2013.01); B23K 26/342 (2015.10); B23K 26/70 (2015.10); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/00 (2014.12); G01J 3/2889 (2013.01); G01J 3/443 (2013.01); G01K 13/00 (2013.01); G01N 21/71 (2013.01); B22F 10/25 (2021.01); B22F 10/34 (2021.01)] 20 Claims
OG exemplary drawing
 
1. An additive manufacturing system comprising:
a powder bed arranged to hold a workpiece;
an energy beam arranged to generate a molten region at the workpiece;
a sensor arranged to collect data related to the molten region; and
a processor adapted to determine a coupling efficiency of the energy beam to the workpiece based on the data.