EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

The gravity sand casting process is ensuring to achieving 20% low mechanical properties than that of a permanent mold casting because of low rate of solidification. A considerable amount of research and development has concentrated in studying how the resulting mechanical properties are linked to the solidification process in sand gravity casting. In order to simulate the complex physical process at work at the dynamic mold-liquid interface, numerical and experimental solidification analysis was performed in sand mold by use of 3D sand printing technology. Using advanced industrial simulation software compared to smoothed particle hydrodynamics (SPH) numerical model, the melt filling and solidification processes were investigated. One of the main of the aims of the simulation is to record the solidification process in-situ trough the temperature filed of mold-liquid interface using instrumented 3DP sand mold with specific local density. Numerical results of the SPH simulations have then been compared with experimental data from heat field and provide insight into its validity trough the resulted spatial distribution of the local temperature of mold-liquid interface compared to industrial software