Battelle Memorial Institute

Rajib Kalsar

Scott A Whalen

Glenn J Grant

Vineet V Joshi

Md Reza-E-Rabby

Darrell R Herling

Brandon Scott Taysom

Xiao Li

Tianhao Wang

The present disclosure provides methods for preparing an extruded product from a solid billet. The methods can include providing an as-cast billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the as-cast billet to plasticize the as-cast billet; and extruding the plasticized as-cast billet with an extrusion die to form an extruded product. Methods for preparing extruded products from billets can also include: providing a billet for extrusion; while maintaining a majority of the billet below 100° C., applying a simultaneous rotational shear and axial extrusion force to one end of the billet to plasticize the one end of the billet; and extruding the plasticized one end of the billet with an extrusion die to form an extruded product. Methods for preparing an extruded product from a billet can also include providing a billet for extrusion; applying a simultaneous rotational shear and axial extrusion force to the billet to plasticize the billet; extruding the plasticized billet with an extrusion die to form an extruded product; and artificially aging the extruded product for less than the ASTM recommended amount of time.

Devices and methods for performing shear-assisted extrusion and extrusion processes

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Richland, WA, United States of America

Rajib Kalsar