NUMERICAL SIMULATION FOR LOW PRESSURE DIE CASTING OF Al-ALLOY MOTOR ENCLOSURE AND TECHNOLOGY IMPROVEMENT

摘要：

The FDM numerical simulation software, View-Cast system, was employed to simulate the mould-filling and solidification process in low pressure die casting (LPDC) of Al-alloy motor enclosure. The distribution of liquid fraction, temperature field and the solidification pattern of casting were revealed and the formation mechanism as well as distribution rule of the potential defects, namely gas pores and shrinkage pores, were predicted. Furthermore the solutions to eliminate them were presented. By reducing the pouring rate, the turbulent flow at the comer of casting had eased, so the gas pores could be eliminated. Then the force- cooling system was installed on the top of mould, which could reduce the volume of liquid islands efficiently so that the shrinkage defects can be decreased to its limit.

关键词： Al-alloy Motor Enclosure Low Pressure Die Casting Numerical Simulation Technology Improvement

作者: Guofa MI Xiangyu LIU Kuangfei WANG Lei LI

作者单位: School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, China

会议类型: 国际会议

会议名称: 第七届环太平洋铸造及凝固过程模型化国际会议(The 7th Pacific Rim International Conference on Modeling of Casting and Solidificetion Process(MCSP7-2007))

会议地点: 大连

会议语种:英文

页码: 97-104

在线出版日期: 2007-08-19（万方平台首次上网日期，不代表论文的发表时间）