Transactions of Materials and Heat Treatment

Title：Deformation characteristics and springback analysis of arc edge U-shaped parts

Authors： Lv Lin Deng Ming Wan Shu Liu Yaqi

Unit： Chongqing University of Technology

KeyWords： bending springback arc edge U-shaped part

ClassificationCode：

year,vol(issue):pagenumber：2015,40(7):34-37

Abstract：

For the forming of arc ridge U-shaped cross section parts commonly used for car frame structure, the concept of plate arc edge U-shaped bending was defined and its geometry and forming characteristics were analyzed. The stress and strain distribution characteristics in the wings, the sides and the top during the forming were analyzed by numerical simulation. The springback of arc edge U-shaped bending was preliminarily studied. It is stated that the flange width and profile curvature are the main influence factors of the springback. Meanwhile, it is also discussed that the springback forms of arc edge U-shaped bending in the direction of the cross section and ridges with their interaction. Therefore, it is pointed out that the influence factors on bending springback including materials performance(modulus), size of the bending angle，relative bending radius and size of blank holder force in forming.

Funds：

重庆市应用开发类资助项目（cstc2014yykfA60002、cstc2013yykfc60004）

吕琳（1968-），女，硕士，教授

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