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.

Date of Patent:
Apr. 04, 2023

Filed:

Mar. 20, 2020
Applicant:

Desktop Metal, Inc., Burlington, MA (US);

Inventors:

Jonah Samuel Myerberg, Lexington, MA (US);

Anastasios John Hart, Waban, MA (US);

Assignee:

Desktop Metal, Inc., Burlington, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/153 (2017.01); B29C 64/264 (2017.01); B29C 64/255 (2017.01); B29K 91/00 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 64/153 (2017.08); B29C 64/255 (2017.08); B29C 64/264 (2017.08); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B29K 2091/00 (2013.01);
Abstract

According to some aspects, techniques are provided for fabricating sinterable metallic parts through the application of directed energy to a build material. In particular, applying energy to a build material comprising a polymer mixed with a metal powder may cause the polymer to form a cohesive structure with the metal powder. As a result, the polymer acts as a 'glue' to produce a metallic green part without local melting of the metal. The green part may subsequently be sintered to remove the polymer and produce a fully dense metal part. Optionally, a step of debinding may also be performed prior to, or simultaneously with, sintering.


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