Improved Numerical Methods for Accuracy of Filling and Shrinkage Prediction in Cast Iron and Steel Castings

摘要

A hybrid method incorporating cut-cell and porous media approaches is proposed to improve the filling accuracy of castings made using sand casting process. The retained melt modulus and surface methods were coupled with the probability distribution model for the prediction of shrinkage positions and area sizes, and the evaluation of the accuracy of shrinkage prediction. They highly depend upon the shrinkage prediction model and the critical solidification fraction.