The residual stress generated during the thermal processing process such
as casting and heat treatment is one of the key reasons for the
irreversible deformation of the diesel engine block. However, the
previous research only conducted research and analysis unilaterally from
the residual stress generated by casting or the effect of annealing heat
treatment on the residual stress of castings, and the analysis results
were quite different from the actual ones. Therefore, a comprehensive
research method is proposed to consider the whole dynamic evolution
process of castings from casting residual stress to heat treatment
stress elimination. Through PROCAST numerical simulation of the casting
process of diesel engine blocks, the simulation results of casting
residual stress are introduced into the ABAQUS, and then the model of
block casting with casting residual stress is simulated by annealing
heat treatment. To realize the dynamic evolution of residual stress from
casting to heat treatment.