Application of FEM Thermal Stress Simulation to Machine Tool Castings

摘要：

　　Deformation of castings during the solidification process puzzles many engineers and scientists for many years.Numerical simulation is a powerful assistant tool to help attain the goal of near-net forming by casting.The traditional methods compute the thermal stress of both the casting and the mold.It suffers the problem of massive calculation and failure of convergence.This paper proposed an improved Mold Surface Element Method,in which the main idea is using the surface elements instead of body elements to express the interactions between the casting and the mold.The present method shows great computation efficiency and provides satisfied precision for engineering.Two practical casting products were used to verify the proposed method.The results observed in practical products agree well with the simulation results.The method is believed to benefit the production practice and provide theoretical guidance.

关键词： mold surface element method thermal stress simulation of casting casting deformation

作者: Tao Chen Dun-ming Liao Yu-long Tang Qi-zhou Cai

作者单位: State Key Laboratory of Material Processing and Die & Mould Technology,Huazhong University of Science and Technology,China

会议类型: 国内会议

会议名称: 第十二届中国铸造协会年会暨全球首届铸造论坛、第六届中国金砖国家铸造业论坛

会议地点: 北京

会议语种:英文

页码: 109-116

在线出版日期: 2016-05-14（万方平台首次上网日期，不代表论文的发表时间）