Transactions of Materials and Heat Treatment

Title：Numerical simulation of the new technics for upsetting a cylinder between two cone platens

Authors： DENG Dong-mei 1 LIU Zhu-bai 2 NI Li-yong 2 (1.College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics Nanjing Jiangsu 210016 China 2.College of Mechanical Engineering Yanshan University Qinhuangdao Hebei 0660

Unit：

KeyWords： upsetting between cone platens numerical simulation stress strain quantitative analysis

ClassificationCode：TG316.11

year,vol(issue):pagenumber：2005,30(3):12-13

Abstract：

The new technics for upsetting a cylinder between two cone platens can improve the cylinder's internal stress and uniform its deformation. These functions are good for closing internal defects, especially for cavities. To get quantitative analysis of this new technics, the software of ANSYS is employed, and the whole deforming process of this technics is simulated. Modeling simplification and parameters selection are introduced. The distribution of internal strain and stress with different height reduction are given, analyzed and compared with that of flat platens upsetting. The analysis results prove that this new technics is important for enhancing internal stress and strain, and the mechanical model of the new theory is verified quantitatively. It is important to complete and perfect the theory.

Funds：

教育部博士点基金项目(96021603)资助

Reference：

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