Department of Mining and Materials Engineering;
Faculty of Engineering;
Prince of Songkla University;
Hat Yai;
Songkhla;
90112;
Thailand;
Department of Industrial Engineering;
Faculty of Engineering;
Rajamangala University of Technology Srivijaya;
Songkhla;
9000 0;
Thailand;
Department of Mechanical Engineering;
Faculty of Engineering;
Prince of Songkla University;
Hat Yai;
Songkhla;
90112;
Thailand;
gravity; sand; casting; semi-solid; sand; cast; Al7Si0.3MgFe; gas; induced; semi-solid;