Effect of process variables on interface friction characteristics in strip drawing of AA5182 alloy in warm forming temperature range

Effect of process variables on interface friction characteristics in strip drawing of AA5182 alloy in warm forming temperature range

Archit Shrivastava, D. Ravi Kumar

Abstract. Warm forming is widely used to enhance formability of aluminum alloy sheets in order to manufacture components with complex shapes. However, forming of aluminum alloy sheets by various sheet metal forming processes such as deep drawing and stretch forming involves sliding, drawing or stretching of sheet materials over the tool surfaces. Warm forming results in change of frictional characteristics at the tool-blank interface during forming. Higher friction leads to poor formability, non-uniform strain distribution, higher forming load, and poor surface finish of the component. So it is important to investigate the effect of process variables on friction at the interface in warm forming of aluminum alloy sheets. In this work, the tribological behavior of an Al-Mg-Mn alloy (AA5182) has been studied by performing strip drawing experiments in the warm forming temperature range (100-250 °C) in lubricated condition. Experiments were conducted to investigate the effect of temperature, normal force, and drawing speed on the coefficient of friction. A significant impact on the friction coefficient is observed by the change in boundary conditions as a result of variation in process variables with temperature being the most influential. The results have been compared with frictional characteristics in strip drawing at ambient temperature.

Keywords
Metal Forming, Friction, Strip Drawing Test

Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Archit Shrivastava, D. Ravi Kumar, Effect of process variables on interface friction characteristics in strip drawing of AA5182 alloy in warm forming temperature range, Materials Research Proceedings, Vol. 25, pp 423-430, 2023

DOI: https://doi.org/10.21741/9781644902417-52

The article was published as article 52 of the book Sheet Metal 2023

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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