Abstract
In this paper, a numerical algorithm is developed to simulate the injection compression molding process. By using viscoelastic theory as describing P-V-T behavior of polymer material, and by using modified cross model as describing rheological behavior of polymer material, we can build up a complete formulation. By employing finite volume method, the governing equations are solved. We calculate 3-D velocity field and pressure field and thermal field by iterative solver. Combining formulation and numerical method,a simulation program is got to predict the distribution of pressure, temperature, density and velocity during the injection compression process. Based on these simulation results, it was found suitable for the physical phenomena,and it was found that the quality of product is well improved by this technology.