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.

Date of Patent:
Jul. 04, 2017

Filed:

Feb. 04, 2015
Applicant:

Mtu Aero Engines Ag, Munich, DE;

Inventors:

Joachim Bamberg, Dachau, DE;

Roland Hessert, Herrsching, DE;

Assignee:

MTU Aero Engines AG, Munich, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/16 (2006.01); B22F 3/105 (2006.01); B23K 26/03 (2006.01); B28B 1/00 (2006.01); B28B 17/00 (2006.01); B29C 67/00 (2017.01); G01L 1/24 (2006.01); G01L 5/00 (2006.01); B33Y 10/00 (2015.01); B33Y 50/00 (2015.01); B29L 31/30 (2006.01);
U.S. Cl.
CPC ...
G01B 11/162 (2013.01); B22F 3/1055 (2013.01); B23K 26/032 (2013.01); B28B 1/001 (2013.01); B28B 17/00 (2013.01); B29C 67/0077 (2013.01); B29C 67/0085 (2013.01); B29C 67/0088 (2013.01); G01L 1/24 (2013.01); G01L 5/0047 (2013.01); B22F 2003/1056 (2013.01); B29L 2031/3076 (2013.01); B33Y 10/00 (2014.12); B33Y 50/00 (2014.12);
Abstract

A method for determining residual stresses of a component (), in particular a component of an aircraft engine, while it is being manufactured by an additive manufacturing process. The method includes the following steps: creating at least one local melt pool () in a surface () of the component () to be manufactured after a predetermined portion of the component is completed; optically detecting surface distortions and/or elongations occurring at least in a region around the created melt pool (); and determining the residual stresses of the component () which are present at least in the region around the created melt pool () based on the optically detected surface distortions and/or elongations. Further an apparatus for determining residual stresses of a component () while it is being manufactured by an additive manufacturing process is provided.


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