Study on the Pre-processing and Post-processing Technology for the Numerical Simulation of Mold Filling and Solidification Processes of Castings

In this paper,the problems that may occur in the pre-processing and post-processing of the numerical simulation of mold filling and solidification processes of castings and their solutions are introduced.By using the Visual C++6.0 programming language,the pre-processing and post-processing software based on STL files have been developed.The 3D finite difference mesh generation can be done accurately and rapidly.In addition,the OpenGL technology can be applied to realize the display and transformation of STL solid and mesh solid,and the dynamic display of temperature fields and velocity fields during the mold filling and solidification processes.The practicality and efficiency of the technology have been verified through practical applications.