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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11666988 B1

PDFFull Text
Date of Patent:
Jun. 06, 2023

Filed:

Jul. 22, 2019

Additive manufacturing machine condensate monitoring

Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventor:

Joshua M. Norman, South Windsor, CT (US);

Assignee:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Attorney:

Kinney & Lange, P.A.

Primary Examiner:

Sang Y Paik

Assistant Examiner:

Erwin J Wunderlich

Int. Cl.
CPC ...
B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B23K 26/34 (2014.01); G01M 11/02 (2006.01); G02B 26/10 (2006.01); B22F 12/90 (2021.01); B22F 10/31 (2021.01); B29C 64/393 (2017.01); B33Y 40/00 (2020.01); B22F 12/49 (2021.01); B23K 26/354 (2014.01); B23K 26/06 (2014.01); B23K 26/067 (2006.01); B22F 10/28 (2021.01); B22F 10/70 (2021.01); B22F 12/60 (2021.01); B22F 12/42 (2021.01); B22F 12/45 (2021.01);
U.S. Cl.
CPC ...
B23K 26/0643 (2013.01); B22F 10/28 (2021.01); B22F 10/31 (2021.01); B22F 10/70 (2021.01); B22F 12/60 (2021.01); B22F 12/90 (2021.01); B23K 26/067 (2013.01); B23K 26/34 (2013.01); B23K 26/354 (2015.10); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); G01M 11/0285 (2013.01); G02B 26/101 (2013.01); B22F 12/42 (2021.01); B22F 12/45 (2021.01); B22F 12/49 (2021.01);
Abstract

An additive manufacturing machine includes a laser light source, a beam entry window, a recoater, a plurality of light sources attached to the recoater, a photosensor, and a controller. The laser light source emits laser light to selectively melt one or more portions of a working layer of a powder bed during additive manufacturing of a part. The beam entry window is positioned between the powder bed and the laser light source. The recoater moves across the powder bed to spread the working layer. The photo sensor senses intensity of light emitted by each of the plurality of light sources through the beam entry window. The controller correlates sensed intensity of the light emitted by each of the plurality of light sources through the beam entry window to corresponding positions on the beam entry window based on locations of each of the plurality of light sources.

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