Transactions of Materials and Heat Treatment

Title：Application of CNC stretch bending forming machine on profile forming of aircraft frames and strips

Authors： Liu Tianjiao Wang Yongjun Xia Xiaojiao Wang Wei Wang Shunhong Li Shanliang

Unit： Northwestern Polytechnical University AVIC Xi'an Aircraft Industry (group) Company Ltd.

KeyWords： CNC stretch bending forming machine stretch bending aircraft frames and strips

ClassificationCode：V262.3;TG386.4

year,vol(issue):pagenumber：2014,39(8):47-53

Abstract：

In the production of aircraft parts,the stretch bending forming is widely used for the manufacture of bending profile in order to reduce the springback and improve the quality of components, especially for aircraft frames and strips. The main structure of machine, stretch bending operating and forming process, process parameter setting and stretch bending ability of A-7B CNC stretch bending forming machine were introduced. The example of CNC stretch bending forming machine application to common Y-shaped Al alloy with various section and curvature and new T-shaped Al-Li alloy frames were introduced, and the development trend of stretch bending forming technology was forecasted．

Funds：

国家自然科学基金资助项目（51275420）；航空科学基金资助项目（2008ZE53037）

刘天骄（1988-），男，博士研究生；王永军（1968-），男，博士，副教授

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