Galerkin finite element analysis of spin casting cooling process

Abstract

A Galerkin finite element numerical model was established to analyse the cooling process for spin casting mould and cast parts, to predict the solidification time for functional parts with different shapes and mould temperature distribution at different manufacturing conditions, and to investigate the effects of different cooling methods as well as the cooling parameters on the cooling process. A computer program was developed for this purpose and it was proved that the established numerical model is effective to simulate the spin casting process with accuracy, acceptable stability and convergence. The results obtained show that some factors, such as the clamping time, intensity of convection heat transfer, the use of a mould processing-table with a metal surface are important factors affecting the solidification time and cooling process. In addition, it was determined that the mixing of copper powder or other metals with a high thermal conductivity and specific heat, with the silicone rubber material in an appropriate composition before vulcanising, can be effective in controlling and optimising the cooling process.