Transactions of Materials and Heat Treatment

Title：Numerical simulation of U-bending die surface's friction influence on springback

Authors： FU Yong-hong WANG Zhong-ling HUA Xi-jun XU Hua SHI Yu-feng

Unit： Jiangsu University

KeyWords： U bending friction coefficient springback

ClassificationCode：TH161.14

year,vol(issue):pagenumber：2011,36(6):28-32

Abstract：

The laser composite texture for the surface treatment of U-bend forming was researched. The friction coefficient of different regions on the die surface can be controlled effectively, which can not only improve springback, but also increase the die life. The U-bending was simulated by ABAQUS finite element simulation software. Different friction coefficients were set up in each area of die to reveal the effect of the regional friction on the law of springback of U-bending. Increasing the friction between die corner region, flange surface region and blank，or decreasing the friction between punch corner region and blank can control the springback.

Funds：

国家自然科学基金资助项目（51175233）；江苏省科技支撑计划资助项目（BE2010060）；江苏省六大人才高峰资助项目（08-B-04)；江苏省科技成果转化专项资金资助项目（BA2010068）；江苏省高校科研成果产业化推进资助项目（JHB2011-39)

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