US 11,806,925 B2
Additive manufacturing process
Scott Alan Gold, Waynesville, OH (US); Thomas Graham Spears, Springdale, OH (US); and Ajay Kumar Anand, Oakland, CA (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Dec. 21, 2022, as Appl. No. 18/069,544.
Application 18/069,544 is a division of application No. 16/662,621, filed on Oct. 24, 2019, granted, now 11,559,854.
Claims priority of provisional application 62/757,849, filed on Nov. 9, 2018.
Prior Publication US 2023/0129572 A1, Apr. 27, 2023
Int. Cl. B29C 64/153 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B23K 26/342 (2014.01); B23K 26/70 (2014.01); B23K 26/03 (2006.01); B23K 26/14 (2014.01); B23K 31/00 (2006.01); B22F 10/28 (2021.01); B22F 12/49 (2021.01); B22F 12/60 (2021.01); B22F 12/90 (2021.01); B22F 10/322 (2021.01); B22F 10/368 (2021.01)
CPC B29C 64/153 (2017.08) [B22F 10/28 (2021.01); B23K 26/032 (2013.01); B23K 26/034 (2013.01); B23K 26/1464 (2013.01); B23K 26/342 (2015.10); B23K 26/702 (2015.10); B23K 31/003 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B22F 10/322 (2021.01); B22F 10/368 (2021.01); B22F 12/49 (2021.01); B22F 12/60 (2021.01); B22F 12/90 (2021.01)] 9 Claims
OG exemplary drawing
 
1. An additive manufacturing machine comprising:
a powder depositing apparatus for depositing a layer of additive material on a powder bed;
an irradiation device for selectively fusing a portion of the layer of additive material to form a cross sectional layer of a part;
a melt pool monitoring system for measuring emission signals from the powder bed while the irradiation device is fusing the cross sectional layer; and
a controller operably coupled to the melt pool monitoring system, the controller being configured for:
identifying outlier emissions where the measured emission signals exceed a predetermined signal threshold;
identifying outlier clusters by assessing the spatial proximity of the outlier emissions; and
generating an alert in response to identifying the outlier clusters.