Transactions of Materials and Heat Treatment

Title：Three-dimensional modeling and finite element analysis to porthole compound dies

Authors： SHAO Jun (Department of Mechanical Engineering Zhuzhou Institute of Technology Hunan Zhuzhou 412008 China)

Unit：

KeyWords： porthole compound die solid model ANSYS finite element analysis

ClassificationCode：TP391.7

year,vol(issue):pagenumber：2005,30(4):82-85

Abstract：

The three-dimensional model of the porthole compound die is built up based on the finite element analysis software in this paper. After determining the boundary conditions and calculating the extrusion pressure, the stress field during extrusion is calculated. It is found that there exists a stress concentration at the junctions between the die core and the porthole bridge, which agrees quite well with the location of the porthole bridge crack. This indicates that the stress concentration is one of dominating factors causing porthole bridge cracks. The result is identical with the real condition

Funds：

湖南省教育厅科研基金(02C652)

Reference：

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