The prediction of the final axial stresses and the residual strains of complex extruded aluminium profiles requires a good knowledge of the material behavior and of the industrial process.This paper is focused on the methods required to provide the whole set of data:material ones and process ones.Scanning differential calorimetry,dilatometry and diffusivity tests identify thermophysic material properties and hot tensile tests identify parameters of the elasto-visco-plastic Norton-Hoff law.The description of the industrial process and its simulations are described.Then a sensitivity analyzis provides the cooling key parameters causing the undesired final curvature during the industrial process.
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