Transactions of Materials and Heat Treatment

Title：Study on reverse viscous medium pressure bulging and performance for titanium alloy sheet

Authors： Yang Pengfei1 Wang Zhang2 Chen Yuankun1 Gao Tiejun1

Unit： 1.Shenyang Aerospace University 2.AECC Harbin Dongan Engine Co. Ltd.

KeyWords： titanium alloy reverse viscous medium pressure bulging bulging performance ellipticity forming limit

ClassificationCode：TG302

year,vol(issue):pagenumber：2024,49(3):34-39

Abstract：

Aiming at the poor plastic deformation ability of titanium alloy sheet at room temperature, the reverse viscous medium pressure bulging was studied by combining experiment and finite element analysis, and with the help of viscous medium performance and reverse pressure, the stress state and deformation law of sheet were improved to improve the bulging performance and forming limit of titanium alloy sheet. In the research process, the reverse viscous medium pressure bulging process of titanium alloy sheet with hemispherical punch was analyzed, and the distribution laws of equivalent stress and wall thickness of different reverse viscous medium pressure specimens were obtained. On this basis, the relationship between the complexity of specimen and the quality and performance of reverse viscous medium pressure bulging was analyzed by the study of reverse viscous medium pressure bulging with different ellipticity punches, and the forming limit diagram under different reverse viscous medium pressure conditions was constructed by strain grid method. The research results provide an important reference for determining the process parameters of reverse viscous medium pressure forming of titanium alloy sheets.

Funds：

国家自然科学基金资助项目（52075347）；辽宁省高等学校基本科研面上项目(LJKZ0192)

作者简介：杨朋飞（1995-），男，硕士研究生,E-mail：1437937721@qq.com;通信作者：高铁军（1977-），男，博士，教授,E-mail：tiejun_gao@163.com

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