Transactions of Materials and Heat Treatment

Title：The Spring Back Analysis of the free Bulging Process

Authors： (Department of Mechanical Engineering Northwestern Polytechnical University)Gong Yaofu Yangfang

Unit：

KeyWords： Spring Back Analysis Free Bulging

ClassificationCode：TG301

year,vol(issue):pagenumber：1995,20(1):0-0

Abstract：

A formula analysing the spring back of the circular components formed in the free bulging process is developed here.The experiment results show that the formula can be used for describing the effect of rulers, such as hp, the stable relative height of the workpiece,and the material combined behavior indexes A and B, on the spring back of the piece.

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Reference：

［1］李寿萱，钣金成形原理与工艺，西北工业大学出版社，西安，1985．12，87￣91．
［2］宋玉泉，赵军，超塑性自由胀形的解析理论，吉林工业大学学报，1985年，第3期，245￣255．

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