US 11,938,560 B2
Systems and methods for measuring radiated thermal energy during an additive manufacturing operation
R. Bruce Madigan, Butte, MT (US); Lars Jacquemetton, Santa Fe, NM (US); Glenn Wikle, Santa Fe, NM (US); Mark J. Cola, Santa Fe, NM (US); Vivek R. Dave, Concord, NH (US); Darren Beckett, Corrales, NM (US); and Alberto M. Castro, Santa Fe, NM (US)
Assigned to DIVERGENT TECHNOLOGIES, INC., Los Angeles, CA (US)
Filed by Sigma Labs, Inc., Santa Fe, NM (US)
Filed on Jun. 14, 2022, as Appl. No. 17/839,853.
Application 17/839,853 is a continuation of application No. 16/574,388, filed on Sep. 18, 2019, granted, now 11,390,035.
Application 16/574,388 is a continuation of application No. 16/052,488, filed on Aug. 1, 2018, granted, now 10,479,020, issued on Nov. 19, 2019.
Claims priority of provisional application 62/540,016, filed on Aug. 1, 2017.
Claims priority of provisional application 62/633,487, filed on Feb. 21, 2018.
Claims priority of provisional application 62/643,457, filed on Mar. 15, 2018.
Prior Publication US 2022/0388249 A1, Dec. 8, 2022
Int. Cl. B23K 26/03 (2006.01); B22F 12/90 (2021.01); B23K 15/00 (2006.01); B23K 26/342 (2014.01); B23K 26/70 (2014.01); B23K 31/12 (2006.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 50/00 (2015.01); B33Y 50/02 (2015.01); B22F 10/28 (2021.01); B22F 10/31 (2021.01); B23K 101/00 (2006.01)
CPC B23K 26/032 (2013.01) [B22F 12/90 (2021.01); B23K 15/0086 (2013.01); B23K 26/342 (2015.10); B23K 26/70 (2015.10); B23K 31/125 (2013.01); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 50/00 (2014.12); B33Y 50/02 (2014.12); B22F 10/28 (2021.01); B22F 10/31 (2021.01); B22F 2203/11 (2013.01); B23K 2101/001 (2018.08)] 19 Claims
OG exemplary drawing
 
1. An additive manufacturing method comprising:
depositing a layer of build material on a build plane;
dividing at least a portion of the build plane into a plurality of grid regions, each grid region having a respective area;
generating a plurality of scans across a grid region of the plurality of grid regions using an energy source to fuse the layer of build material within the grid region;
detecting, using a sensor, energy emitted from the build plane while the energy source fuses the layer of build material; and
determining a thermal energy density of the grid region of the plurality of grid regions from the energy detected by the sensor and the respective area of the grid region.