Shear assisted extrusion process

US11517952B2 · kind B2 · utility

Assignee

• Battelle Memorial Institute · CH

Inventors

• Vineet V. Joshi · Richland, US
• Glenn J. Grant · Benton City, US
• Curt A. Lavender · Richland, US
• Scott A. Whalen · Richland, US
• Saumyadeep Jana · Kennewick, US
• David Catalini · Hyattsville, US
• Jens T. Darsell · West Richland, US

Key dates

• Filing date: Jun 30, 2020
• Grant date: Dec 6, 2022
• Expiry date: Nov 6, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21C29/003
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

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.