Constitutive equation development for high strain deformation processing of aluminum alloys

摘要

Constitutive equations for AA3003 and AA3102 in the conditions of as-homogenized extrusion billetand as-extruded tubing have been set forth in a tensile mode, and in a compressive mode involvinglongitudinal upsetting of the tube cross section. The data have been analyzed by way of the classicalZener-Hollomon approach, and strain, in the range of six, increases flow stress～50%, thusincreasing press load projections ～25%.