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方盒形件精密挤压成形三维弹塑性有限元模拟
引用本文:周明智,薛克敏. 方盒形件精密挤压成形三维弹塑性有限元模拟[J]. 合肥工业大学学报(自然科学版), 2005, 28(8): 881-884
作者姓名:周明智  薛克敏
作者单位:合肥工业大学,材料科学与工程学院,安徽,合肥,230009
基金项目: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)
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。

关 键 词:盒形件  精密挤压  弹塑性有限元法  数值模拟
文章编号:1003-5060(2005)08-0881-04
修稿时间:2004-11-06

3D elasto-plastic FEM simulation of precise extrusion process of the box-shaped work piece
ZHOU Ming-zhi,XUE Ke-min. 3D elasto-plastic FEM simulation of precise extrusion process of the box-shaped work piece[J]. Journal of Hefei University of Technology(Natural Science), 2005, 28(8): 881-884
Authors:ZHOU Ming-zhi  XUE Ke-min
Abstract:The precise extrusion process of the box-shaped work piece is simulated by the 3D elasto-plastic finite element method(FEM). Based on the results of simulation,the metal flow law and the relative technological parameters during the extrusion process are obtained, 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.
Keywords:box-shaped work piece  precise extrusion  elasto-plastic FEM  numerical simulation
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