Analysis of strain and stress in the lower forging limit of Ti-6Al-2Mo-2Cr titanium alloy

Hot-forging process of dual-phase titanium alloy was analysed. The aim of the work concerned selected technological problems of impression-die forging. Calculation included two variants of forging with variable temperature of billet. Estimation was made based on maps of distribution of temperature, effective strain and mean stress in a part and in the tools. A verification of the results with physical modelling was also carried out. Computer simulation was made with a use of commercial program QForm2D/3D.