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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 11413684 B1

PDFFull Text
Date of Patent:
Aug. 16, 2022

Filed:

Sep. 05, 2019

Debinding of 3d objects

Applicant:

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

Inventors:

Michael A. Gibson, Burlington, MA (US);

Alexander C. Barbati, Cambridge, MA (US);

Assignee:

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

Attorneys:

Oak Law, PLLC

Jonathan D. Hall

Primary Examiner:

Alexander Markoff

Int. Cl.
CPC ...
B22F 3/10 (2006.01); B33Y 40/00 (2020.01); B29C 64/165 (2017.01); B29C 64/35 (2017.01); B22F 10/20 (2021.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01); B29C 64/386 (2017.01); B29C 64/40 (2017.01); G05B 19/4099 (2006.01); B29C 64/357 (2017.01); B08B 3/08 (2006.01); B29C 64/393 (2017.01); B29C 71/00 (2006.01); B33Y 50/02 (2015.01); B33Y 10/00 (2015.01); B22F 5/10 (2006.01); B22F 10/30 (2021.01); B22F 1/10 (2022.01); B33Y 30/00 (2015.01); G01B 21/08 (2006.01);
U.S. Cl.
CPC ...
B22F 3/1025 (2013.01); B22F 3/1021 (2013.01); B22F 10/20 (2021.01); B29C 64/165 (2017.08); B29C 64/35 (2017.08); B29C 64/386 (2017.08); B33Y 40/00 (2014.12); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); B08B 3/08 (2013.01); B22F 1/10 (2022.01); B22F 5/10 (2013.01); B22F 10/30 (2021.01); B22F 2202/01 (2013.01); B22F 2202/07 (2013.01); B22F 2203/00 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); B29C 64/357 (2017.08); B29C 64/393 (2017.08); B29C 64/40 (2017.08); B29C 71/0009 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); G01B 21/08 (2013.01); G05B 19/4099 (2013.01);
Abstract

3D-printed parts may include binding agents to be removed following an additive manufacturing process. A debinding process removes the binding agents by immersing the part in a solvent bath causing chemical dissolution of the binding agents. The time of exposure of the 3D-printed part to the solvent is determined based on the geometry of the part, wherein the geometry is applied to predict the diffusion of the solvent through the 3D-printed part. The 3D-printed part is then immersed in the solvent bath to remove the binding agent, and is removed from the solvent bath after the time of exposure.

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