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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 9636770 B1

PDFFull Text
Date of Patent:
May. 02, 2017

Filed:

Nov. 26, 2014

Method and device for controlling an irradiation system

Applicant:

Slm Solutions Group Ag, Luebeck, DE;

Inventors:

Dieter Schwarze, Luebeck, DE;

Henner Schoeneborn, Luebeck, DE;

Assignee:

SLM Solutions Group AG, Luebeck, DE;

Attorney:

Taft Stettinius & Hollister LLP

Primary Examiner:

Samuel H Heinrich

Int. Cl.
CPC ...
B22F 3/10 (2006.01); B22F 3/105 (2006.01); B29C 67/00 (2006.01); B23K 26/342 (2014.01); B23K 15/00 (2006.01); B23K 26/34 (2014.01); B33Y 30/00 (2015.01); B23K 15/02 (2006.01); B23K 15/10 (2006.01); B23K 26/70 (2014.01); B23K 26/144 (2014.01); B23K 26/60 (2014.01); B33Y 10/00 (2015.01);
U.S. Cl.
CPC ...
B23K 15/004 (2013.01); B22F 3/1055 (2013.01); B23K 15/00 (2013.01); B23K 15/0086 (2013.01); B23K 15/02 (2013.01); B23K 15/10 (2013.01); B23K 26/144 (2015.10); B23K 26/34 (2013.01); B23K 26/60 (2015.10); B23K 26/702 (2015.10); B29C 67/0077 (2013.01); B33Y 30/00 (2014.12); B22F 2003/1057 (2013.01); B33Y 10/00 (2014.12); Y02P 10/295 (2015.11);
Abstract

In a method for controlling an irradiation system () for use in an apparatus () for producing a three-dimensional work piece and comprising a first and a second irradiation unit () a first irradiation area () is defined on a surface of a carrier () adapted to receive a layer of raw material powder. A layer of raw material powder applied onto the carrier () in the first irradiation area () is irradiated by the first irradiation unit () of the irradiation system (), wherein the operation of the first irradiation unit () is controlled in such a manner that the raw material powder is pre-heated. Thereafter the layer of raw material powder applied onto the carrier () in the first irradiation area () is irradiated by means of the second irradiation unit () of the irradiation system (), wherein the operation of the second irradiation unit () is controlled in such a manner that the raw material powder is heated to a temperature which allows sintering and/or melting of the raw material powder in order to generate a layer of the three-dimensional work piece.

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