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:
Oct. 08, 2019

Filed:

Nov. 19, 2014
Applicant:

Arcam Ab, Moelndal, SE;

Inventor:

Ulric Ljungblad, Moelndal, SE;

Assignee:

Arcam AB, Moelndal, SE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 3/105 (2006.01); B29C 64/20 (2017.01); B33Y 10/00 (2015.01); B33Y 50/02 (2015.01); B29C 64/153 (2017.01); B29C 64/386 (2017.01);
U.S. Cl.
CPC ...
B22F 3/1055 (2013.01); B29C 64/153 (2017.08); B29C 64/20 (2017.08); B29C 64/386 (2017.08); B33Y 10/00 (2014.12); B33Y 50/02 (2014.12); B22F 2003/1056 (2013.01); B22F 2003/1057 (2013.01); Y02P 10/295 (2015.11);
Abstract

A method for forming a three-dimensional article through successive fusion of parts of a powder bed comprising: providing a model of the three dimensional article, applying a first powder layer on a work table, directing an energy beam over the work table causing the first powder layer to fuse in selected locations according to the model to form a first cross section of the three-dimensional article, applying a second powder layer on the work table, directing the energy beam over the work table causing the second powder layer to fuse in selected locations according to the model to form a second cross section of the three-dimensional article, wherein the second layer is bonded to the first layer, detecting a local thickness in at least two positions in at least the second powder layer, varying an energy beam parameter depending on the detected local thickness of the second powder layer.


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