US 12,280,411 B2
System and method for enabling fused deposition metal 3D printing
Alberto Daniel Lacaze, Potomac, MD (US); and Karl Nicholas Murphy, Cocoa Beach, FL (US)
Assigned to ROBOTIC RESEARCH OPCO, LLC, Clarksburg, MD (US)
Filed by Robotic Research OpCo, LLC, Clarksburg, MD (US)
Filed on May 23, 2023, as Appl. No. 18/200,802.
Application 18/200,802 is a continuation of application No. 17/835,099, filed on Jun. 8, 2022, abandoned.
Application 17/835,099 is a continuation of application No. 15/928,794, filed on Mar. 22, 2018, granted, now 11,383,282, issued on Jul. 12, 2022.
Claims priority of provisional application 62/475,567, filed on Mar. 23, 2017.
Prior Publication US 2023/0286027 A1, Sep. 14, 2023
Int. Cl. B21C 29/00 (2006.01); B21C 23/02 (2006.01); B21C 33/02 (2006.01); B22D 23/00 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B21C 29/003 (2013.01) [B21C 23/02 (2013.01); B21C 33/02 (2013.01); B22D 23/003 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
forming, via a liquefier, a metal into a slurry, the liquefier comprising a heating element and a shearing device, the forming comprising controlling the heating element and the shearing device to cause the metal to have a first temperature and to achieve a viscosity within a thixotropic range of the metal; and
depositing, via an extrusion nozzle in communication with the liquefier, the formed slurry onto a substrate, the substrate being at a second temperature during the depositing,
wherein the first temperature is substantially the same as the second temperature.