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. 18, 2016

Filed:

Jun. 09, 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); B22F 3/10 (2006.01); B22F 3/00 (2006.01);
U.S. Cl.
CPC ...
B22F 3/1035 (2013.01); B22F 3/003 (2013.01); B22F 3/1055 (2013.01); B22F 2003/1057 (2013.01); Y02P 10/295 (2015.11);
Abstract

A method for forming a three-dimensional article comprising the steps of: applying a model of the three dimensional article, applying a first powder layer on a work table, directing a first electron beam from a first electron beam source over the work table causing the first powder layer to fuse in first selected locations according to the model to form a first cross section of the three-dimensional article, directing a second electron beam from a second electron beam source over the work table, registering at least one setting of the first electron beam source, registering at least one setting of the second electron beam source, correcting the position of the second electron beam depending on the at least one setting of the first electron beam source and the at least one setting of the second electron beam source.


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