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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 10549348 B1

PDFFull Text
Date of Patent:
Feb. 04, 2020

Filed:

Apr. 24, 2017

Method for additive manufacturing

Applicant:

Arcam Ab, Moelndal, SE;

Inventor:

Ulf Ackelid, Goeteborg, SE;

Assignee:

Arcam AB, Moelndal, SE;

Attorney:

Dinsmore & Shohl LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Christopher Douglas Moody

Int. Cl.
CPC ...
B22F 3/105 (2006.01); B23K 15/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2015.01); B23K 26/342 (2014.01); B22F 3/10 (2006.01); B23K 26/00 (2014.01); B23K 26/12 (2014.01); C22C 14/00 (2006.01); C23C 8/08 (2006.01); B23K 103/14 (2006.01); B23K 15/02 (2006.01); B33Y 30/00 (2015.01); B33Y 40/00 (2015.01); B23K 26/70 (2014.01); B22F 3/15 (2006.01); B22F 3/24 (2006.01);
U.S. Cl.
CPC ...
B22F 3/1055 (2013.01); B22F 3/1039 (2013.01); B22F 3/15 (2013.01); B22F 3/24 (2013.01); B23K 15/0026 (2013.01); B23K 15/0086 (2013.01); B23K 15/0093 (2013.01); B23K 15/02 (2013.01); B23K 26/0006 (2013.01); B23K 26/126 (2013.01); B23K 26/342 (2015.10); B23K 26/702 (2015.10); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 70/00 (2014.12); C22C 14/00 (2013.01); C23C 8/08 (2013.01); B22F 2003/241 (2013.01); B22F 2998/10 (2013.01); B23K 2103/14 (2018.08);
Abstract

A method comprising the steps of: distributing a titanium alloy or pure titanium powder layer on a work table inside a vacuum chamber, directing at least one electron beam from at least one electron beam source over the work table causing the powder layer to fuse in selected locations, distributing a second powder layer on the work table of a titanium alloy or pure titanium inside the build chamber, directing the at least one electron beam over the work table causing the second powder layer to fuse in selected locations, and releasing a predefined concentration of the gas from the metal powder into the vacuum chamber when at least one of heating or fusing the metal powder layer, wherein at least one gas comprising hydrogen is absorbed into or chemically bonded to the titanium or titanium alloy powder to a concentration of 0.01-0.5% by weight of the hydrogen.

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