Transactions of Materials and Heat Treatment

Title：FEM analysis and experiment on closed-die upsetting of thick-wall tubes

Authors： Shandong University of Technology Gao Jun Zhao Xinhai Song Libin Zhao Guoqun

Unit：

KeyWords： Thick wall tubes Closed die upsetting Floating die FEM simulation

ClassificationCode：TG316.11

year,vol(issue):pagenumber：2001,26(3):6-7

Abstract：

Using closed die upsetting process to manufacture thick wall tubes on normal hydraulic press may cause the dis uniformity of the thickness along the length of the tube.In this paper,a new process of using floating dies was introduced.The forming process and die structure were given.Using the rigid plastic finite element method,both the new process and the conventional process were simulated on the computer workstation.The comparison of the simulated results for the two processes shows that the thickness of the tube obtained by the new process is more uniform than that by the conventional process.The experimental research was also carried.The experimental result has a good agreement with the simulation result.

Funds：

山东省优秀中青年科学家奖励基金资助

Reference：

1　林发禹特种锻压工艺北京 :机械工业出版社 ,1 991 :1 1 9～ 1 2 0
2　丁旭光 ,张质良浮动模精密锻造模具工业 ,1 998(1 0 )
3　《粉末冶金模具设计手册》编写组粉末冶金模具设计手册北京 :机械工业出版社 ,1 985

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