The interfacial heat transfer coefficient （IHTC） between castings and metal mold during solidification process was calculated through coupling numerical simulation with simulated annealing algorithm based on Isight platform by help of tested temperature data from A356 aluminum alloy. Meanwhile

interface input between the Isight and the ProCAST was resolved successfully. Uniform-step was used to calculate post-treated data

which was more matched with uniform time-step treated experimental data

Furthermore

it was convenient for calculating optimized goal. Through Isight platform integrating with ProCAST software

not only heat transfer coefficient with interface temperature or time can be accurately calculated

but also the method is used to optimize casting process and mould design.