Abstract
This paper gives an overview of residual stresses problem after heat treatment of large scale forged parts as well as numerical study and simulations of different methods to reduce stresses. DEFORM software was used for Finite Element Method (FEM) simulations as one of the most capable simulation tools combining both forging and heat treatment processes analysis. The study is performed on the sample of large scale airspace part of aluminum AK6 (AlMgSiCu) alloy. The comparison of different quenching media is presented. Practical conclusions and recommendations are made to optimize the process and reduce residual stresses after the heat treatment. This paper provides numerical simulation and theoretical conclusions and needs to be amended by experimental measurement of residual stresses by one of available methods as part of the future work.
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