Transactions of Materials and Heat Treatment

Title：Hot stamping process of titanium alloy curved surface parts

Authors： Hu Yun1 Lin Bin2

Unit： 1.Department of Intelligent Equipment Changzhou College of Information Technology 2.Globe(Jiangsu) Co. Ltd.

KeyWords： titanium alloy hot stamping hot sizing process special-shaped curved surface sheet metal parts forming temperature

ClassificationCode：TG386

year,vol(issue):pagenumber：2023,48(3):95-98

Abstract：

In order to solve the problems of difficult forming, easy wrinkling and easy cracking of titanium alloy sheet metal parts, for the special-shaped curved surface sheet metal parts of titanium alloy, the hot forming process scheme was given. Firstly, the main part of parts was prefabricated by hot stamping, and then the bending angle of head was adjusted by hot sizing process. Furthermore, the orthogonal test groups were established by orthogonal test method, and the primary and secondary relationship for the influence degree of each factor was determined by range analysis method to obtain the optimal combination of process parameters. Finally, the effectiveness of the process parameters was verified by tests. The research results show that the forming temperature has a great influence on the forming quality of sheet metal parts. If the temperature is too low, it is easy to wrinkle. If the temperature is too high, the softening is serious, and the forming accuracy is not high. The optimum forming temperature of TA15 titanium alloy is 670 ℃. Under the optimal process parameters, the thickness of sheet metal parts is relatively uniform, and the maximum deviation is only 0.1 mm. Thus, the hot stamping process can meet the thickness requirements of titanium alloy curved surface parts.

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作者简介：胡云（1975-），女，硕士，副教授 E-mail：274054523@qq.com

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