Open AccessNumerical simulation on the effect of sample geometry size on the metal flow behaviour during the forging process
Author(s) -
Japheth Obiko,
Fredrick Madaraka Mwema
Publication year - 2020
Publication title -
iop scinotes
Language(s) - English
Resource type - Journals
ISSN - 2633-1357
DOI - 10.1088/2633-1357/ab828c
Subject(s) - forging , materials science , flow stress , stress (linguistics) , finite element method , die (integrated circuit) , composite material , sample (material) , sample size determination , flow (mathematics) , computer simulation , metallurgy , mechanics , geometry , strain rate , structural engineering , engineering , mathematics , physics , thermodynamics , linguistics , philosophy , statistics , nanotechnology
This paper reports on the effect of sample geometry size on the metal flow behaviour using Deform TM 3D finite element simulation software. The simulation process was done at forging temperature of 1100 °C and upper die speed of 50 mm/second. The friction coefficient between the die and the sample interface was taken to be constant during the simulation process. The results of the effective stress and strain distribution in the deformed sample were reported. The results show that the effective stress and strain distribution in the deformed sample was non-uniformly distributed. The maximum effective strain occurred at the centre of the deformed sample for all the samples tested. The maximum effective stress occurred at the die-sample contact surface. At the contact surfaces, the effective stress decreased with a decrease in the sample size. The effective stress at the centre of the deformed sample increased with a decrease in the sample geometry size.