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

Author of the article:MI Lei1, 2, HE Tianqi1,2, HE Rong1,2, TIAN Junqiang1,2, FAN Jiangkun3 , XUE Xiangyi1,2,3

Author's Workplace：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

Key Words：TC21 titanium alloy; deep cylinder forging; forge forming; numerical simulation

Abstract：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.