锥形件冷挤压变形过程的模拟和实验  

Simulation and Experiment of Deformation Process of Cone Parts Cold-extrusion

作　　者：黄平云[1] 

机构地区：[1]西安公路交通大学基础课部,陕西西安710064

出　　处：《西安公路交通大学学报》2000年第4期109-111,共3页Journal of Xi'an Highway University

摘　　要：通过刚塑性有限元分析和密栅云纹实验 ,揭示了锥形件冷挤压时的金属流动规律 ,应力场、应变场、工件接触面上的正压应力分布 ,挤压力的变化规律 ,以及挤压件的内部显微分布。实验结果表明 ,模拟过程和结果是可信的 ,与实验结果比较吻合。The deformation process of cone part cold extrusion is analyzed theoretically by means of rigid plastic finite element method and moire graph. The law of metal flow and the distributions of stress and strain are revealed. The experimental results show that the agreement between the numerical simulation results and the experiments is satisfactory. The results are valuable to define the process window for cone part extruding processes.

关 键 词：锥形件 冷挤压 数值模拟 变形过程 

分 类 号：TG302[金属学及工艺—金属压力加工]