Study on macro- and micromodeling of the solidification process of aluminum shape casting

Numerical methods to improve the computational efficiency and to extend the computational scale of the mold filling and solidification of the aluminum die casting process were studied. For molding filling simulation, the parallel computation method was studied, while for solidification simulation, an implicit finite difference scheme and a transient surface layer concept were studied. In addition, the modified cellular automaton method was used to simulate the microstructure formation and evolution of the aluminum alloy, including the grain structure and the dendritic microstructure. The experimental results show that the models in the article are reasonable for describing the formation and evolution of the microstructure formation.