Prediction of shrinkage cavities of using casting simulation

Abstract

The differential case is a part drive system of car, and a casting product. In order to lightweight car, it is required to thin the wall of motor part. Therefore, this study analyzed a molten metal flow, solidification for the purpose of the close nest defect prediction of the differential case using casting simulation “JSCAST”. As a result, the close nest defect outbreak position of the differential case were predicted by matching a temperature change when the molten metal of analysis and the experiment are solidified. We added feeder to the center of the product. As a result, the occurrence of shrinkage cavity could be eased.