Transactions of Materials and Heat Treatment

Title：Research on die compensation method based on spring-back control of U-shaped part

Authors： YANG Xue-chun DONG Yi-qiong PENG-Wei WANG Hai-bin(School of Mechanical and Electrical Engineering Nanchang University Nanchang 330031 China)

Unit：

KeyWords： U-shaped part spring-back die compensation

ClassificationCode：TG386

year,vol(issue):pagenumber：2009,34(1):42-46

Abstract：

The spring-back in sheet metal forming is a common phenomenon but difficult to be solved,especially in the U-shaped part.Die compensation method is commonly used in the control of U-shaped bending part in production by experience,and few articles were written from its theories.The algorithm of die compensation radius R1 with bending punch fillet radius R′0 was educed according to the spring-back theory about the U-shaped part.The algorithm was validated by experiments of compensation die.The results show that the algorithm has a good precision and it can better control the spring-back according to the algorithm values for the die parameters which can be used for reference in production.

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Reference：

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