摘要
基于有限元技术的金属材料加工数值模拟对于改善加工工艺、提高工件表面质量、实现高效加工具有重要意义,其中描述材料应力应变关系的本构模型是这一分析手段的基础条件。针对TB6钛合金材料加工数值模拟分析的需要,基于万能试验机、gleeble热模拟试验机和霍普金森杆试验装置,设计并开展了多种应变率和温度工况条件下的TB6钛合金材料应力-应变试验,基于试验工作建立了TB6钛合金材料的本构关系。
Numerical simulation of metal machining based on FEM has great significance for both improving the ma- chining technology and enhancing surface integrity and realizing high efficiency machining. In this paper, in order to the simulation demand of TB6 titanium alloy machining, the experiment for getting stress-strain curves at different temperature and strain rate has been designed and carried out with universal testing machine, Gleeble thermal simu- lator and Hopkinson bar testing apparatus. Based on the experimental data, the constitutive relationship of TB6 tita- nium alloy has been established.
出处
《机械科学与技术》
CSCD
北大核心
2013年第2期157-159,共3页
Mechanical Science and Technology for Aerospace Engineering
关键词
TB6钛合金
本构模型
加工
TB6 titanium alloy
constitutive relationship machining
temperature
