Transactions of Materials and Heat Treatment

Title：Numerical analysis on flareless internal rolling connection for titanium alloy tubes

Authors： LI Guang-jun1 ZHANG Rong-xia2 WU Wei2 ZENG Yuan-song2 XU Xu-dong1 (1.Chengdu Aircraft Industrial(Group)Co. Ltd. Chengdu 610091 China 2.Beijing Aeronautical Manufacturing Technology Research Institute Beijing 100024 China)

Unit：

KeyWords： flareless internal rolling numerical analysis titanium alloy tube

ClassificationCode：TG306

year,vol(issue):pagenumber：2010,35(2):79-81

Abstract：

The key problems of the internal rolling connection for titanium alloy tubes were analyzed with the method of finite element simulation.The result shows that the radial feeding of the rollers makes the tube materials flow in the radial direction and the axial direction.The residual contact force,which is the important reason for the tight connection between the tube and sleeve,exists between the tube and sleeve.According to the analysis of the finite element,the forming experiments between the tube and sleeve were completed.The results of the experiments and the finite element are anastomotic well.And the tube joints passed the test of connection intensity,which proves that the tube joints have high connecting strength and well sealing capability.

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Reference：

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