UNEVEN FDM MESH TECHNOLOGY AND ITS APPLICATION ON CASTING'S MOLD FILLING SIMULATION

摘要

Numerical simulation of casting's mold filling process is a very important aspect of the foundry CAE technology. But it is time-consuming; it may take several hours, even several days. This study tries to reduce the computation time of mold filling simulation by uneven Finite Difference Method mesh technology. Firstly, this paper introduces mathematic model of casting's mold filling process. Then the uneven FDM mesh technology are introduced; this paper gives both the even FDM mesh model and also the uneven FDM mesh model of some casting, and comprises the simulation results and computation time of the casting's mold filling simulation by the even and uneven FDM mesh models. Finally, this paper gives some applications of mold filling simulation by uneven FDM mesh technology. The results show that the uneven FDM mesh technology can reduce the computation time of casting's mold filling simulation efficiently, especially for high pressure diecasting's mold filling simulation.