Finite element simulation of different deformation modes for powder hot forging

ABSTRACT

Comparative results of numerical simulation of the process of hot forging of porous preforms with an axial hole for two deformation schemes are presented: in a die with a flash groove on the inner surface of the forged workpiece cavity and in a closed die. A significant difference in the nature of the evolution of the distribution of deformations and density over the cross-section of the workpiece for the two considered schemes is noted. It is shown that forging in a die with an open volume provides significantly higher degrees of material deformation during forging compared to closed forging, which should lead to an increase in the quality of the structure and final properties of the forged material.

KEYWORDS:

• Hot forging
• finite element simulation
• density
• porosity
• deformation
• compaction
• stress

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

G. Bagliuk

Gennadii Bagliuk Dr. of science, Prof., Corresposponding member of NAS of Ukraine, deputy director of the Institute for problems of materials science NAS of Ukraine.

S. Kyryliuk

Stepan Kyryliuk junior scientist of the Institute for problems of materials science NAS of Ukraine.