US 11,919,061 B2
Shear-assisted extrusion assemblies and methods
Mageshwari Komarasamy, Richland, WA (US); Scott A. Whalen, West Richland, WA (US); and Brian K. Milligan, Richland, WA (US)
Assigned to Battelle Memorial Institute, Richland, WA (US)
Filed by Battelle Memorial Institute, Richland, WA (US)
Filed on Sep. 14, 2022, as Appl. No. 17/944,932.
Claims priority of provisional application 63/244,632, filed on Sep. 15, 2021.
Prior Publication US 2023/0078467 A1, Mar. 16, 2023
Int. Cl. B21C 23/04 (2006.01)
CPC B21C 23/04 (2013.01) 20 Claims
OG exemplary drawing
 
1. A shear assisted extrusion assembly, the assembly comprising:
a billet containing assembly configured for receiving a billet comprising a billet outer material and a billet inner material in at least one cross-section, wherein the billet outer material and the billet inner material are not bonded;
a tool configured to operably engage the billet outer material and billet inner material; and
an extrudate receiving channel configured to receive extrudate from the tool, the extrudate comprising extruded outer material and extruded inner material in at least one cross-section;
wherein:
the extruded outer material is the same material as the billet outer material, and the extruded inner material is the same material as the billet inner material; and
the extruded inner material and the extruded outer material are bonded at an interface therebetween.