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:
Jul. 01, 2025
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 10/28 (2021.01); B22F 10/36 (2021.01); B22F 12/43 (2021.01); B22F 12/46 (2021.01); B23K 15/00 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01);
U.S. Cl.
CPC ...
B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 12/43 (2021.01); B22F 12/46 (2021.01); B23K 15/002 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12);
Abstract
The present invention relates to an apparatus and a method for an electron beam system for manufacturing a three-dimensional object by fusing successive layers of powder, said system having at least one lens for reshaping of said electron beam, an electron source and a powder bed, said method comprising the step: blocking a selected cross section of said electron beam for controlling the electron beam power. By interference between the electron beam and a beam blocking part a portion of the electron beam is prevented from reaching the powder bed.