• CN:11-2187/TH
  • ISSN:0577-6686

›› 2004, Vol. 40 ›› Issue (2): 150-152,.

• 论文 • 上一篇    下一篇

楔横轧变形过程中内部空心缺陷产生机理的模拟研究

刘桂华;任广升;徐春国;蒋智;沈智   

  1. 北京机电研究所
  • 发布日期:2004-02-15

RESEARCH ON MECHANISM OF INTERIOR-HOLLOW DEFECT DURING THE DEFORMATION OF CROSS WEDGE ROLLING

Liu Guihua;Ren Guangsheng;Xu Chunguo;Jiang Zhi;Shen Zhi   

  1. Beijing Research Institute of Mechanical and electrical Technology
  • Published:2004-02-15

摘要: 利用Deform-3D软件对楔横轧变形过程进行了三维有限元模拟仿真,得到了三维变形状态下轧件内部应力、应变场的全部信息和材料的流动形态,揭示了在整个变形过程中轧件内部应力应变状态及其历史演化过程,进而对楔横轧内部空心缺陷产生的机理做出了明确的阐述。

关键词: 内部空心缺陷, 三维有限元模拟, 楔横轧, 应力应变状态, 轨迹规划, 肌肉活动度, 脚踝康复, 章动运动

Abstract: The deformation of the workpiece during cross wedge rolling (CWR) is simulated by using three-dimension finite element soft named deform-3D. The whole information of the workpiece stress and strain field and the material flow discipline are obtained. So the evolvement history of the interior stress and strain state are grasped, and the mechanism of the interior-hollow defect during CWR is explained definitely.

Key words: 3D finite numerical simulation, Cross wedge rolling, Interior- hollow defect, Stress and strain state, Ankle rehabilitation, Muscle activity, Nutation motion, Trajectory planning

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