THERMO–MECHANICAL TREATMENT PROCESS OF AlZn5Mg3Cu ALLOY AND OPTIMIZATION OF TECHNOLOGICAL PARAMETERS

The paper presents the results of experimental researches aimed to optimize the thermo-mechanical treatment process applied to AlZn5Mg3Cu alloy used in aviation industry. The optimal solution is determined by finding some values of independent variables, so that to obtain the best value for objective-function. Objective function in the case of optimizing thermo-mechanical treatment regime studied is represented by the energy consumption "Q=f(T/τ,ε)" under certain restrictions regarding mechanical properties values researched. Researches were based on an experimental program of thermo-mechanical processing applied to aluminium alloy studied in order to obtain the required values of mechanical properties with minimal cost.