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.:
Date of Patent:
Sep. 01, 2026
Filed:
Jan. 29, 2020
Applicant:
Freemelt Ab, Mölndal, SE;
Inventor:
Ulric Ljungblad, Mölndal, SE;
Assignee:
Freemelt AB, Mölndal, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 10/362 (2021.01); B22F 10/28 (2021.01); B22F 10/368 (2021.01); B22F 12/13 (2021.01); B22F 12/41 (2021.01); B33Y 10/00 (2015.01); B33Y 40/10 (2020.01);
U.S. Cl.
CPC ...
B22F 10/362 (2021.01); B22F 10/28 (2021.01); B22F 10/368 (2021.01); B22F 12/13 (2021.01); B22F 12/41 (2021.01); B33Y 10/00 (2014.12); B33Y 40/10 (2020.01); B22F 2203/11 (2013.01);
Abstract
The present invention relates to a heating method for preparing a powder bed for subsequent processing by irradiating the powder bed with an electron beam from an electron source. The electron source may be designed for fast moving of the electron beam to different heating positions at the powder bed comprising the step, local heating of at least two powder bed heating positions by successive resting of said electron beam at the at least two powder bed heating positions. By jumping between local preheating positions at the powder bed before the powder is fused, charged powder can be prevented from levitation and scattering from the powder bed.