有限元法铸造凝固过程温度场模拟及缺陷预测  

FEM Numerical Simulation of Temperature and Defects Prediction Algorithm of Casting Solidification

作　　者：杨曼云[1,2] 迟毅林[1] 

机构地区：[1]昆明理工大学,云南昆明650504 [2]云南机电职业技术学院,云南昆明650203

出　　处：《铸造》2017年第1期44-49,共6页Foundry

基　　金：云南省科技计划项目"铸件凝固过程计算机仿真"

摘　　要：基于有限元方法对铸造凝固过程温度场模拟及缩孔、缩松缺陷预测算法进行了研究,并进行了软件研发。模拟过程中,充分考虑材料和边界条件等模拟参数的非线性特征,并考虑结晶潜热的处理。同时对所开发软件的铸件温度场模拟、缺陷预测结果与Pro CAST软件计算结果进行对比验证,并结合实验数据对比,验证了所开发软件有限元算法及结果的正确性。We studied the technology of numerical simulation of temperature field and shrinkage and dispersed shrinkage prediction algorithm in casting based on FEM method. In the simulation process, the nonlinear characteristics of the simulation parameters, such as materials and boundary conditions, were considered. We compared the simulation results of SIMU-CAST, ProCAST and experiment. The accuracy and precision of results coincided with each other.

关 键 词：铸造 凝固 温度场模拟 缩孔缩松预测 

分 类 号：TG244.3[金属学及工艺—铸造]