摘要
基于有限元仿真,研究了在干切削和低温冷却条件下切削TC4合金过程中零件加工表面微结构的变化。通过运用用户自定义的材料属性的程序,对材料的本构模型、在不同切削条件下微结构变化的特征,以及在切削过程中流动应力的变化进行定义,使得材料的流动应力在切削过程中可以根据实际的计算结果进行随时更新。通过实验的比较,证实了仿真结果的正确性。
Basedon finite element simulation,the microstructure changes during machining TC4 alloy under dry cutting condition and cryogenic cutting condition were studied.Based on the user defined programmer,the constitutive model,the properties of the microstructure of the alloy under different cutting conditions,and the flow stress ofmaterial under cutting conditions were defined.So that the stress values of material can be updated at any time according to the calculating results.At last,the simulation results were validated as correct by the experimental results.
作者
尹浩
郑雷
YIN Hao;ZHENG Lei(School of Mechanical&Automotive Engineering,Qingdao University of Technology, Qingdao Shandong 266520,China;School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng Jiangsu 224051,China)
出处
《机床与液压》
北大核心
2018年第23期85-89,共5页
Machine Tool & Hydraulics
基金
国家自然科学基金资助项目(51575470)
江苏省"六大人才高峰"高层次人才资助项目(JXQC-029)
江苏高校"青蓝工程"资助项目(苏教师[2016] 15号)
山东省自然科学基金项目(ZR2012EEL04)
关键词
微结构
有限元仿真
硬度
本构模型
Microstructure
Finite element simulation
Hardness
Constitutive model
