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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
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- DOI:
- 作者:
- 米 磊 1，2 ，何忝锜 1，2 ，和 蓉 1，2 ，田军强 1，2 ，樊江昆 3 ，薛祥义 1，2
MI Lei1, 2, HE Tianqi1,2, HE Rong1,2, TIAN Junqiang1,2, FAN Jiangkun3 , XUE Xiangyi1,2,3
- 作者单位:
- 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
1. Xi'an Chaojing Technology Co., Ltd., Xi'an 710200, China; 2. Shaanxi Key Laboratory of Advanced Metal Structural Materials Precision Thermoforming, Xi'an 710200, China; 3. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
- 关键词:
- TC21 钛合金；深筒件；锻造成形；数值模拟
TC21 titanium alloy; deep cylinder forging; forge forming; numerical simulation
- 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.