Influence of friction during forming processes—a study using a numerical simulation technique
Friction has an important influence in metal forming operations, as it contributes to the success or otherwise of the process. In the present investigation, the effect of friction on metal forming was studied by simulating compression tests on cylindrical Al-Mg alloy using the finite element method (FEM) technique. Three kinds of compression tests were considered wherein a constant coefficient of friction was employed at the upper die–work-piece interface. However, the coefficient of friction between the lower die–work-piece interfaces was varied in the tests. The simulation results showed that a difference in metal flow occurs near the interfaces owing to the differences in the coefficient of friction. It was concluded that the variations in the coefficient of friction between the dies and the work-piece directly affect the stress distribution and shape of the work-piece, having implications on the microstructure of the material being processed.
KeywordsFriction FE simulation Metal forming Microstructural evolution Strain rates
Unable to display preview. Download preview PDF.
- 13.Menezes PL, Kishore, Sasidhar Y, Kailas SV (2005) Role of surface topography on friction and transfer layer formation—a study using inclined scratch test. In: Proceedings of the World Tribology Congress III, Washington, DC, September 2005, pp 151–152Google Scholar
- 15.Menezes PL, Kishore, Kailas SV (2006) Scratching of materials and applications. Elsevier, UKGoogle Scholar
- 16.Menezes PL, Kishore, Kailas SV (2006) Effect of surface topography on friction and transfer layer formation during sliding. In: Proceedings of the 3rd Asia International Conference on Tribology (ASIATRIB 2006), Kanazawa, Japan, October 2006, pp 113–114Google Scholar
- 23.Prasad YVRK, Sasidhara S (1997) Hot working guide. ASM International, USAGoogle Scholar
- 40.Claves SR, Misiolek WZ, Williams DB (2001) Modeling and characterization of localized strain in aluminum alloys. In: Symposium on the Advances in the Metallurgy of Aluminum Alloys, Indianapolis, Indiana, November 2001, pp 282–289Google Scholar