擬3次元モデルによる薄肉板状ダイカスト鋳物の溶湯充填シミュレーション

抄録

  A computer system for analyzing the molten metal flow in die cavity of a plate shaped die castings has been developed. The molten metal flow in the die cavity was simulated by solving reformed 2D Navier-Stokes equations considering the thickness of the flow. The apparent kinematic viscosity of the actual flow in the simulation, 2cm²/s which conformed to the actual flow was obtained. With the simulation system using this coefficient, the molten metal flow in the die cavity of the plate shaped die castings having the gas defects was analyzed, enabling the decrease of the defects.