Abstract

SolidStir® Extrusion, a newly-innovated manufacturing process, offers tooling design adaptability as a significant advantage over conventional extrusion processes. Aluminum 6061-T6 was extruded using a modular multi-hole three-piece die. Microstructural characterization of as-extruded 3 mm diameter wire revealed refined equiaxed grains of 9.5 ± 4.0 µm average size. Tensile testing showed that as-extruded wires exhibited a tensile yield strength (YS) of 110 MPa, ultimate tensile strength (UTS) of 171 MPa, and elongation of 15.3%. After subjected to post process heat treatment, the extruded wires had a tensile YS of 246 MPa, UTS of 298 MPa, and elongation of 9%.

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