Application Research on MTC Technology in Casting Based on FEM Simulation

Abstract

Application research on Mold Temperature Control (MTC) technology in casting was done based on Finite Element Method (FEM). A MTC forming process is presented here. The mathematical models of numerical computation are established, including heat transfer differential equation and its equivalent integral formulae and FEM combined equations, boundary conditions, processing method of MTC units. The numerical computational software was developed to implement the numerical model, and a control algorithm which is closer to the real process since the MTC units can be automatic controlled in it was presented. The 3D transient heat transfer analyses of three MTC cases were done using the developed software. The computational results indicate that in the second case, the solid-liquid interface keeps near-planar, and the growth velocity of the solid-liquid interface is greater than the first case, performing better than the others. Additionally, the relative errors between the numerical and experimental data are less than 8 percent. Thereby, the MTC technology is propitious to improve the forming quality and efficiency.