Transactions of Materials and Heat Treatment

Title：Three-dimensional numerical simulation of the combined process of stretch spinning and drawing for the overlength circular cone pipe without mandrel

Authors： CHEN Yi-ming~(1) ZHOU Yi-qing~(2) (1.Jiangmen Broadcast-Television University Jiangmen Guangdong 529000 China 2.College of Mechanical Engineering South China University of Technology Guangzhou Guangdong 510640 China)

Unit：

KeyWords： overlength circular cone pipe without mandrel stretch spinning and drawing numerical simulation

ClassificationCode：TG356

year,vol(issue):pagenumber：2005,30(5):39-42

Abstract：

Base on the respective research of stretch spinning process and drawing process,due to the difficulty of machining overlength circular cone pipe and combining the advantages of both,in the paper,a new cold-forming method which is called combined stretch spinning and drawing process is proposed,and the device of combined stretch spinning and drawing process is designed.The combined stretch spinning and drawing process is used without mandrel either to assure good quality product or to increase the working efficiency.On the basis of elastic-plastic theory and using of FEM software-ANSYS,the FEM model of stretching spinning and drawing process is made.The simulation result shows that the circular pipe reduced radially with the union applied force,the axial stress is maximal,the deformation is obvious and the pipe is extended along axial direction.

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Reference：

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