Transactions of Materials and Heat Treatment

Title：Precision forging process of TC11 titanium alloy cylinder

Authors： Hong Lingxiang Meng Qingtong

Unit： Baoshan Iron & Steel Co. Ltd.

KeyWords： TC11 titanium alloy isothermal forging long cylinder forgings finite element simulation mechanical properties

ClassificationCode：TG319

year,vol(issue):pagenumber：2019,44(9):7-11

Abstract：

For the precision forging process of titanium alloy cylinder, the isothermal forging process of TC11 titanium alloy cylinder with length of 900 mm, outer diameter of Φ150 mm and inner diameter of Φ110 mm was studied, and the forgings sizes, forging process and die design were researched. Then, the suitable forging scheme was designed, and the deformation process and the force on dies were analyzed and verified by finite element simulation. The results show that the deformation of forgings is uniform during the forging process within 1.5-2.5, and the maximum loading on the working face of die is 250 MPa. Within the material tolerance range, the best billet shape and forming process parameters were obtained, and the actual situation of forgings was in line with expectations. By trial production of product, the mechanical properties and microstructures of the trial production were obtained, and the mechanical properties were up to standard with the fine grain sizes, the uniform microstructure, the accurate forging sizes and the material utilization rate of 70%. Thus, TC11 titanium alloy long cylinder heavy forgings can be produced by the isothermal forging process.

Funds：

洪凌翔（1992-），男，硕士，助理工程师E-mail：983542256@qq.com

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