The mold-less casting technique for production of the wrought aluminum alloy components

摘要

This paper describes design freedom, dimensional accuracy, solidification structures and mechanical properties of hollow products of A6063 aluminum alloy fabricated by the mold-less casting technique. Kinds of geometries, such as a pipe with inner ribs, were fabricated by this process. High thickness accuracy was achieved when a thermally stable condition was maintained. Ultimate tensile strength, proof strength and fracture strain of T6 heat treated A6063 alloy fabricated by this technique were as high as those of extrusions.