Stress field analysis of extra-height forging die using finite element method

Abstract

The stress field of the combined extra-height forging die, which was reformed from solid extra-height forging die, was calculated and analysed using finite element method (FEM). The major factors influencing the stress field of forging die and its variation law were discussed. The results demonstrated that the combined forging die could meet the working strength demand, and that the calculated results by FEM were superior to that by the general design method for die strength. The conclusion could provide evidence for improving the forging die structure and durability.

Keywords

stress field analysis / extra-height forging die / finite element method

References

[1] XieYiquanThe finite element method in elastic and plastic mechanics, 1981, Beijing, Machinery Industry Press: 36-48(in Chinese)

[2] YangChangshunThe cold extrusion die design, 1994, Beijing, National Defence Industry Press: 171-203(in Chinese)

[3] Miko Planvark Ulado Uajoviv. Radical stress distribution on the container wall in cold back ward extrusion of steel. Advanced Technology of Plasticity, 1984, 11: 1126-1132

[4] LiuXiaobo. Reliability design of composed stamping die’s strength. Hunan Nonferrous Metals, 1997, 13(2): 38-39(in Chinese)