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:
Dec. 27, 2022
Filed:
Mar. 26, 2019
Applicant:
Freemelt Ab, Mölndal, SE;
Inventor:
Ulric Ljungblad, Mölndal, SE;
Assignee:
Freemelt AB, Mölndal, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/153 (2017.01); B29C 64/277 (2017.01); B29C 64/286 (2017.01); B29C 64/273 (2017.01); B29C 64/188 (2017.01); B29C 64/30 (2017.01); B33Y 40/00 (2020.01); B33Y 10/00 (2015.01);
U.S. Cl.
CPC ...
B29C 64/153 (2017.08); B29C 64/188 (2017.08); B29C 64/273 (2017.08); B29C 64/277 (2017.08); B29C 64/286 (2017.08); B29C 64/30 (2017.08); B33Y 40/00 (2014.12); B33Y 10/00 (2014.12);
Abstract
A method for manufacturing a three-dimensional object by solidifying selected areas of consecutive powder layers is provided. At least one electron beam successively irradiates predetermined sections of each powder layer by moving an interaction region in which the electron beam interacts with the powder layer. Electromagnetic radiation from a radiation source is directed onto the powder layer to reduce local electrostatic charging in the interaction region. In this way, levitation and scattering of charged powder will be avoided.