Transactions of Materials and Heat Treatment

Title：Research of conical die bulging based on finite-element simulation

Authors： ZHENG Yong~1 GAO Jin-zhang~1 JIA Li-li~2(1.Department of Material Science and Engineering Southeast University Nanjing Jiangsu 210096 China 2.Department of Material Science and Engineering Nanjing Institute of Technology Naning Jiangsu 210013 China)

Unit：

KeyWords： finite-element simulation bulging larger ratio of height to diameter instability of plastic

ClassificationCode：TG316

year,vol(issue):pagenumber：2006,31(4):96-99

Abstract：

Based on the technology of numerical simulation,FEM model of cold bulging technics is set up based on rigid plastic finite element method.Using a simulation software of plastic shaping to simulate the technics of conical die bulging,analyze the affect of die's angle to the bulging process.According to the result of the simulation,we draw up a graph of the die's angle and the workpiece's ratio of height to diameter,provide a law for conical die which also can be a reference for other bulging.At the same time,this paper uses the graph to discuss the bulging technics with a workpiece whose height to diameter ratio is 6,and have got a good result.

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Reference：

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