基于数值模拟的铝合金薄壁件金属型

范庆志

基于数值模拟的铝合金薄壁件金属型
低压铸造工艺设计
张立强1,2，李落星1,2，朱必武2 1.湖南大学汽车车身先进设计与制造国家重点实验室，湖南长沙，410082  2.湖南大学材料科学与工程学院，湖南长沙，410082

        摘要：以A356铝合金为研究对象，基于数值模拟方法使用商业铸造软件ProCAST来设计薄壁件金属型低压铸造工艺，并针对铸件表面缺陷进行分析，提出了工艺改进方案，铸造出了截面呈L型，尺寸为长300mm，宽100mm，壁厚1.5mm的完整铸件，铸件表面质量好，尺寸完整，无缩松等铸造缺陷，为铝合金薄壁件金属型低压铸造技术研究提供了有价值的参考。
        关键词：铝合金；低压铸造；薄壁件；数值模拟
        中图分类号：TG249.2  文献标识码：A  

        The Design of Low Pressure Die Casting (LPDC) Process for Thin-walled Aluminum Component with Permanent Mold Base on Numerical Simulation
Zhang Li-qiang1[        第一作者简介：张立强，男，1978年出生，博士研究生，湖南大学材料科学与工程学院，湖南长沙（410082），E-mail：zlq2k1103@126.com
],2, Li Luo-xing1,2, Zhu Bi-wu2
1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body ,Hunan University, Changsha, 410082, Hunan, China
2.College of Materials Science Engineering, Hunan University, Changsha, 410082, Hunan, China

        Abstract: The LPDC process of thin-walled aluminum component with permanent mould was designed by using the commercial software ProCAST. And a modified technology design was proposed by analyzing the surface defect of the aluminum alloy casting. By applying the modified technology design, a intact casting section model, length:300mm,width:100mm,thick:1.5mm was produced. The surface quality of casting was obviously improved and no defects such as shrinkage were found. It provides the valuable reference for the research of LPDC technology for thin-walled aluminum component with permanent mold.
        Key words: Aluminum alloy,LPDC, Thin-wall casting, Numerical simulation