US 12,220,744 B2
Methods and compositions for the preparation of powders for binder-based three-dimensional additive metal manufacturing
Animesh Bose, Burlington, MA (US)
Assigned to Desktop Metal, Inc., Burlington, MA (US)
Appl. No. 17/254,805
Filed by Desktop Metal, Inc., Burlington, MA (US)
PCT Filed Jun. 20, 2019, PCT No. PCT/US2019/038096
§ 371(c)(1), (2) Date Dec. 21, 2020,
PCT Pub. No. WO2019/246321, PCT Pub. Date Dec. 26, 2019.
Claims priority of provisional application 62/687,438, filed on Jun. 20, 2018.
Prior Publication US 2021/0260652 A1, Aug. 26, 2021
Int. Cl. B33Y 70/10 (2020.01); B22F 1/065 (2022.01); B22F 1/148 (2022.01); B22F 1/17 (2022.01); B22F 1/18 (2022.01); B22F 10/14 (2021.01); B22F 10/16 (2021.01); B22F 10/62 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 80/00 (2015.01)
CPC B22F 10/62 (2021.01) [B22F 1/065 (2022.01); B22F 1/148 (2022.01); B22F 1/17 (2022.01); B22F 1/18 (2022.01); B22F 10/14 (2021.01); B22F 10/16 (2021.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); B33Y 80/00 (2014.12); B22F 2301/052 (2013.01); B22F 2301/15 (2013.01); B22F 2301/35 (2013.01); B22F 2304/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A dispersible power for three-dimensional additive metal manufacturing, comprising:
a plurality of granules, each granule including a dispersion of first metallic particles agglomerated in an organic binder matrix;
wherein the granules are flowable relative to one another, are substantially spherical and have an average particle size of between 20 microns and 100 microns; and
wherein the first metallic particles are sintered to one another.