TC21钛合金深筒件锻造成形过程数值模拟  

Numerical Simulation Analysis of Forging Forming Process of TC21 Titanium Alloy Deep Tube

作　　者：米磊 何忝锜 和蓉 田军强 樊江昆[3] 薛祥义 MI Lei;HE Tianqi;HE Rong;TIAN Junqiang;FAN Jiangkun;XUE Xiangyi(Xi'an Chaojing Technology Co.,Ltd.,Xi'an 710200,China;Shaanxi Key Laboratory of Advanced Metal Structural Materials Precision Thermoforming,Xi'an 710200,China;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]西安超晶科技有限公司,陕西西安710200 [2]陕西省先进金属结构材料精确热成形重点实验室,陕西西安710200 [3]西北工业大学凝固技术国家重点实验室,陕西西安710072

出　　处：《铸造技术》2022年第7期537-540,共4页Foundry Technology

基　　金：国家自然科学基金(52074231)。

摘　　要：采用有限元数值模拟,研究了变形速度、变形温度对TC21钛合金锻造过程中筒内各特征点的温度、等效应变与等效应力的影响。结果表明,随着变形速度及变形温度的提高,深筒件内部的等效应变先增加后减小,而等效应力总体呈现先减小、后大幅提高的趋势;当采用变形温度为945℃、变形速度为10 mm/s的工艺参数时,深筒件的可锻性能最佳。The effects of deformation velocity and temperature on the temperature field, equivalent strain and equivalent stress of each characteristic point in TC21 titanium alloy cylinder during forging were studied by finite element numerical simulation. The results show that with the increase of deformation velocity and temperature, the equivalent strain in deep cylinder increases first and then decreases, while the equivalent stress decreases first and then increases greatly. When the deformation temperature is 945 ℃ and the deformation speed is 10 mm/s, the forging performance of deep cylinder is the best.

关 键 词：TC21钛合金 深筒件 锻造成形 数值模拟 

分 类 号：TG146.23[一般工业技术—材料科学与工程]