铸造技术2013，Vol.34Issue(8)：1027-1030,4.
大断面球铁件铸造过程数值模拟及缩孔缩松预测
Numerical Simulation on Casting Process of Large Ductile Iron Castings and Prediction on Shrinkage Defects
张福全 1王杨 1周惦武 2邵斌2
作者信息
- 1. 湖南大学材料科学与工程学院,湖南长沙410082
- 2. 湖南大学汽车车身先进设计制造国家重点实验室,湖南长沙410082
- 折叠
摘要
Abstract
Aimed at the phenomenon of shrinkage defects in ram castings of ductile iron in CNC machine tools,combined with actual production conditions,three simulation progresses were designed with the finite element simulation software Procast to show the influence of changing pouring temperature and using external chills on solidification process and shrinkage defects.The results indicate that the quality of large machine tool castings can be improved by reducing pouring temperature and setting chills on the large setions,which can shorten the solidification time and decrease the shrinkage defects.The predicted sections where shrinkage defects may appear are partly according with practical production,which can provide theoretical basis for optimizing casting process parameters.关键词
高档数控机床/数值模拟/Procast软件/缩孔缩松Key words
CNC machine tool/numerical simulation/Procast software/shrinkage defects分类
计算机与自动化引用本文复制引用
张福全,王杨,周惦武,邵斌..大断面球铁件铸造过程数值模拟及缩孔缩松预测[J].铸造技术,2013,34(8):1027-1030,4.
