Transactions of Materials and Heat Treatment

Title：Research on new load path of tube hydroforming

Authors： YUAN An-ying1 ZHANG Shi-hong1 WANG Zhong-tang2 LI Wen-wei3(1.Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China 2.School of Materials Shenyang Ligong University Shenyang 110168 China 3.School of Mechanical Engineering and Automa

Unit：

KeyWords： tube hydroforming load path pulsating

ClassificationCode：TG394

year,vol(issue):pagenumber：2008,33(5):95-97

Abstract：

A kind of new load path of internal pressure in tube hydroforming-pulsating load path was introduced.Tube pulsating hydroforming process was simulated by establishing finite element model.The influence of pulsating hydroforming on metal flow,thickness distribution and local thinning were analyzed by comparing the simulation results under different load paths.The results show that pulsating load path can achieve more benefits for preventing excessive local thinning,and for filling at the radius corner;the main reason for uniform deformation under pulsating load path is that the friction force reduction makes it easy for metal flow.

Funds：

河南省杰出人才创新基金项目(0421000700)

Reference：

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