Numerical Simulation and Deformation Analysis of Thermal Stresses in Stress Frame

The numerical simulation of temperature field and stress field during the solidification of HT250 stress frame casting was carried out by using of the professional casting simulation software—ProCAST, with three different pouring temperatures and three different shakeout temperatures, respectively. The residual stress distribution and deformation during the cooling process was obtained. The relation between residual stress and pouring temperature and shakeout temperature was analyzed by the orthogonal experimental design. The results show that the shakeout temperature greatly affects the residual stress, and the higher the shakeout temperature, the lower the residual stress and the greater the deformation of the casting. The impact of pouring temperature on residual stress has no regularity, but the higher the pouring temperature, the bigger the final deformation of casting.