Shear-assisted extrusion assemblies and methods
AssigneeBattelle Memorial Institute
InventorsMageshwari Komarasamy, Scott A. Whalen, Brian Milligan
Life of this patent
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Abstract
Shear-assisted extrusion assemblies are provided. The assemblies can include a billet containing assembly containing a billet comprising a billet outer material and a billet inner material in at least one cross-section; a tool operably engaged with the billet; an extrudate receiving channel configured to receive extrudate from the tool, wherein the extrudate comprises extruded outer material and extruded inner material in at least one cross-section, the extruded outer material being the same material as the billet outer material, and the extruded inner material being the same as the billet inner material. Methods for producing multi-material shear-assisted extrudate are also provided.
Claims20
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;
- a tool configured to operably engage the billet outer material and the billet inner material to cause plastic deformation of the billet outer material and the 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 comprises the same material as the billet outer material, and the extruded inner material comprises the same material as the billet inner material.
A method for producing a multi-material shear assisted extrudate, the method comprising:
- positioning a billet to be operably engaged with a tool to cause plastic deformation of the billet, the billet comprising a billet inner material and a billet outer material;
- and
- establishing rotation and axial force between the tool and the billet to engage the tool with the billet to form an extrudate comprising extruded inner material and extruded outer material;
- wherein the extruded outer material and the extruded inner material are bonded at an interface therebetween.
A shear assisted extrusion assembly, the assembly comprising:
- a billet containing assembly containing a billet, the billet comprising a billet outer material and a billet inner material in at least one cross-section;
- a tool configured to operably engage the billet outer material and the billet inner material to cause plastic deformation of the billet outer material and the billet inner material;
- a mandrel extending from the billet containing assembly to the tool, wherein the mandrel extends through an opening in a die face of the tool;
- 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 inner material and the extruded outer material are bonded at an interface therebetween.
Dependencies are inferred from the claim text.