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AssigneeBattelle Memorial Institute
InventorsVineet V. Joshi, Glenn J. Grant, Curt A. Lavender, Scott A. Whalen, Saumyadeep Jana, David Catalini, Jens T. Darsell
Estimating the term…
A shear assisted extrusion process for producing cladded materials wherein a cladding material and a material to be cladded are placed in sequence with the cladded material positioned to contact a rotating scroll face first and the material to be cladded second. The two materials are fed through a shear assisted extrusion device at a preselected feed rate and impacted by a rotating scroll face to generate a cladded extrusion product. This process allows for increased through wall strength and decreases the brittleness in formed structures as compared to the prior art.
An extrusion process comprising simultaneously providing a rotational shearing force and an axial extrusion force between one end of a billet and a spiral-scroll-faced extrusion die to plasticize at least some of the one end of the billet, the spiral-scroll-faced extrusion die configured to convey the plasticized billet material from an outer edge of the spiral-scroll-faced extrusion die through an orifice within the spiral-scroll-faced extrusion die to form an extrusion product.
The process of claim 2 wherein extrusion of the plasticized billet material is performed at a temperature less than 100° C.
The process of claim 3 wherein the axial extrusion force is at or below 100 MPa.
Dependencies are inferred from the claim text.