Transactions of Materials and Heat Treatment

Title：Hydroforming technology on whole complex thin-walled sheet in aviation industry

Authors： Lang Lihui Sun Zhiying Kong Deshuai Wang Yongming

Unit： School of Mechanical Engineering and Automation Beihang University

KeyWords： hydroforming aerospace sheet metal thin-walled structure wrinkle crack

ClassificationCode：

year,vol(issue):pagenumber：2014,39(10):26-31

Abstract：

In order to take full advantages of hydroforming technology in the field of aerospace sheet metal, the instability behavior and prevention of plate in the hydroforming process were analyzed theoretically, which made the hydroforming technology to be widely applied in practice. The hydroforming technology on whole complex thin-walled sheet in aviation industry was researched by combining with numerical simulation and experimental verification. The defects of wrinkle and crack etc. were predicted by simulating the hydroforming process of typical parts with three kinds of materials and shapes, and the effects of chamber pressure and holder gap on defect were gained as a result. By the method of optimization process and the finite element technology, the technologies of hydroforming process about three typical parts were discussed and the scope of key parameters were obtained, which ensured to obtain a whole complex thin-walled sheet with high quality and precision by the hydroforming technology.

Funds：

国家自然科学基金资助项目（51175024）

郎利辉（1970-），男，博士，教授

Reference：

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