摘要
采用大变形弹塑性有限单元法对盒形件精密复合挤压全过程进行数值模拟,获得所需的金属流动规律及相关的力学参数,从而为优化设计模具、改进工艺和合理选用设备提供了可靠的依据;通过数值模拟成功预测了盒形件在复合挤压成形过程中可能出现的缺陷,进一步提出采用闭式精密锻造工艺成形盒形件。
plastic finite element method （FEM）. Based on the results of simulation,t relative technological parameters during the extrusion process are obtained, he metal flow law and the which are valuable to reasonable design of die. The possible defects of production are predicted successfully by numerical simulation, and it is suggested that the fully enclosed die forging technology can be adopted.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第8期881-884,共4页
Journal of Hefei University of Technology：Natural Science
基金
教育部博士学科点专项基金资助项目(040310B2)
安徽省优秀青年科技基金资助项目(04044058)
关键词
盒形件
精密挤压
弹塑性有限元法
数值模拟
box-shaped work piece
precise extrusion
elasto-plastic FEM
numerical simulation
