Transactions of Materials and Heat Treatment

Title：Research of innovative hybrid impact hydroforming process and its key technology

Authors： Lang Lihui Wang Shaohua Yang Chunlei Yuan Chao

Unit： Beihang University

KeyWords： hybrid impact hydroforming technology high energy rate forming liquid shock wave

ClassificationCode：

year,vol(issue):pagenumber：2014,39(7):1-5

Abstract：

The innovative hybrid impact hydroforming technology is a new technology combining hydroforming and high energy rate forming, which can be used to form some complicated products with local characteristic such as small arch or tiny mark that features were hardly formed at one time by hydroforming in the aerospace and automotive fields. The steps of impact hydroforming process and key technology of dynamic response and others of material during high energy rate forming were analyzed. The relationship between liquid shock force and energy was introduced while frequency could be calculated. The impact hydroforming apparatus, which acting with expanding of pressurization-gas and exporting energy, was designed and made finally. The equipment is of simple structure and easily controlled. The hybrid of forming large features by hydroforming and forming small feature by high energy rate forming is achieved.

Funds：

国家自然科学基金资助项目（51175024）；国际科技合作项目（2010DFA52030）

郎利辉（1970-），男，博士，教授，博导

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