US 12,358,049 B2
Interface layers for removable supports
Jonah Samuel Myerberg, Lexington, MA (US); Ricardo Fulop, Lexington, MA (US); Michael Andrew Gibson, Philadelphia, PA (US); Matthew David Verminski, North Andover, MA (US); Richard Remo Fontana, Cape Elizabeth, ME (US); Christopher Allan Schuh, Wayland, MA (US); Yet-Ming Chiang, Burlington, MA (US); and Anastasios John Hart, Waban, MA (US)
Filed by Desktop Metal, Inc., Burlington, MA (US)
Filed on Mar. 20, 2024, as Appl. No. 18/611,257.
Application 18/611,257 is a continuation of application No. 15/469,213, filed on Mar. 24, 2017, granted, now 11,969,795.
Claims priority of provisional application 62/473,372, filed on Mar. 18, 2017.
Claims priority of provisional application 62/432,298, filed on Dec. 9, 2016.
Claims priority of provisional application 62/322,760, filed on Apr. 14, 2016.
Prior Publication US 2025/0050413 A1, Feb. 13, 2025
Int. Cl. B22F 10/18 (2021.01); B22F 1/10 (2022.01); B22F 3/10 (2006.01); B22F 3/22 (2006.01); B22F 3/24 (2006.01); B22F 7/02 (2006.01); B22F 7/04 (2006.01); B22F 10/20 (2021.01); B22F 10/40 (2021.01); B22F 10/64 (2021.01); B28B 1/00 (2006.01); B29C 64/10 (2017.01); B29C 64/106 (2017.01); B29C 64/112 (2017.01); B29C 64/147 (2017.01); B29C 64/153 (2017.01); B29C 64/165 (2017.01); B29C 64/20 (2017.01); B29C 64/209 (2017.01); B29C 64/245 (2017.01); B29C 64/264 (2017.01); B29C 64/268 (2017.01); B29C 64/386 (2017.01); B29C 64/40 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B33Y 40/20 (2020.01); B33Y 50/00 (2015.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B22F 10/12 (2021.01); B22F 10/14 (2021.01); B22F 10/28 (2021.01); B22F 10/30 (2021.01); B22F 10/32 (2021.01); B22F 10/368 (2021.01); B22F 10/62 (2021.01); B22F 12/30 (2021.01); B22F 12/53 (2021.01); B22F 12/90 (2021.01); B29K 105/16 (2006.01); B29K 505/00 (2006.01); B29K 507/04 (2006.01); B29K 509/02 (2006.01)
CPC B22F 3/1021 (2013.01) [B22F 1/10 (2022.01); B22F 3/22 (2013.01); B22F 3/24 (2013.01); B22F 7/02 (2013.01); B22F 7/04 (2013.01); B22F 10/20 (2021.01); B22F 10/40 (2021.01); B28B 1/001 (2013.01); B29C 64/10 (2017.08); B29C 64/106 (2017.08); B29C 64/112 (2017.08); B29C 64/147 (2017.08); B29C 64/153 (2017.08); B29C 64/165 (2017.08); B29C 64/20 (2017.08); B29C 64/209 (2017.08); B29C 64/245 (2017.08); B29C 64/264 (2017.08); B29C 64/268 (2017.08); B29C 64/386 (2017.08); B29C 64/40 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B22F 2003/242 (2013.01); B22F 2007/042 (2013.01); B22F 10/12 (2021.01); B22F 10/14 (2021.01); B22F 10/18 (2021.01); B22F 10/28 (2021.01); B22F 10/30 (2021.01); B22F 10/32 (2021.01); B22F 10/368 (2021.01); B22F 10/62 (2021.01); B22F 10/64 (2021.01); B22F 12/30 (2021.01); B22F 12/53 (2021.01); B22F 12/90 (2021.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); B29K 2105/16 (2013.01); B29K 2505/00 (2013.01); B29K 2507/04 (2013.01); B29K 2509/02 (2013.01); Y02P 10/25 (2015.11)] 17 Claims
OG exemplary drawing
 
1. A method of fabricating a metallic three-dimensional object having a separable support, comprising the steps of:
forming a plurality of successive layers of build material into a desired shape of the three-dimensional object and a support structure, the build material including a binder system and a metal powder;
wherein during the step of forming a plurality of successive layers, forming an interface of non-sinterable material between the desired shape of the three-dimensional object and the support structure;
debinding at least a portion of the binder system; and
sintering the shape of the three-dimensional object into a densified final object and the support structure into a densified support structure separable at the interface of non-sinterable material.