Numerical simulation and optimization of Al alloy cylinder body by low pressure die casting

作     者：Mi Guofa Liu Yanlei Zhao Hengtao Fu Hengzhi 

作者机构：School of Materials Science and Engineering Henan Polytechnic University Jiaozuo 454000 China 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2008年第5卷第2期

页      面：99-103页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the Innovation Fund for Outstanding Scholar of Henan Province (No.0621000700) 

主　　题：数字模拟技术 最优化分析 铝合金 压铸工艺 

摘      要：Shrinkage defects can be formed easily at critical location during low pressure die casting (LPDC) of aluminum alloy cylinder body. It has harmful effect on the products. Mold filling and solidification process of a cylinder body was simulated by using of Z-CAST software. The casting method was improved based on the simulation results. In order to create effective feeding passage, the structure of casting was modified by changing the location of strengthening ribs at the bottom, without causing any adverse effect on the part s performance. Inserting copper billet at suitable location of the die is a valid way to create suitable solidification sequence that is beneficial to the feeding. Using these methods, the shrinkage defect was completely eliminated at the critical location.