Transactions of Materials and Heat Treatment

Title：Establishment of minimum relative bending radius of thin-walled tube no-mandrel bending

Authors： YANG Shi-tie1 XIAO Shu-hong1 CHEN Shu-quan1 LIAO Jian-tang2 LIN Yong2(1.Faculty of Mechanical & Electronic Engineering Guangdong University of Technology Guangzhou510006 China 2.Tian Jian Steel Furniture Manufacturing Co. Ltd. Jiangmen 529159 China)

Unit：

KeyWords： thin-walled steel tube minimum relative bending radius deformation of geometric condition bending test

ClassificationCode：TG386.31

year,vol(issue):pagenumber：2010,35(2):132-136

Abstract：

The steel tube bending stress and strain were briefly analyzed,the relationship between the minimum relative bending radius and the tube bending tangential strains was explored,the calculation method of the minimum relative bending radius was determined,and then the calculated minimum relative bending radius formulas according to the material hardening exponent,elongation and deformation of the geometric condition were deduced respectively.It was modified further through the steel tube bending tests.This method can precisely determine the actual minimum relative bending radius based on the small amount of steel tube bending tests,which has a strong reference value.

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Reference：

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