Metody wyznaczania oporów tarcia podczas kształtowania blach przeznaczonych na karoserie pojazdów samochodowych
Methods of determination of frictional resistances in sheet metal forming of car body sheets
Abstract
The friction phenomenon existed in almost all plastic working processes, in particular sheet metal forming, is a complex function of the material's properties, parameters of the forming process, surface topography of the sheet and tools, and lubrication conditions. During the stamping of the drawpieces there are zones differentiated in terms of stress and strain state, displacement speed and friction conditions. This article describes the methods for determining the value of the coefficient of friction in selected areas of sheet metal and presents the drawbacks and limitations of these methods.
References
2. Bhushan B., Contact mechanics of rough surfaces in tribology: multiple asperity contact, “Tribology Letters” 1998, vol. 4.
3. Guillon O., Roizard X., Belliard P., Experimental methodology to study tribological aspects of deep drawing – application to aluminium alloy sheets and tool coatings, “Tribology International” 2001, vol. 34.
4. Jurkovic M., Jurkovic Z., Buljan S., The tibological state test in metal forming processes using experiment and modelling, “Journal of Achievements in Materials and Manufacturing Engineering” 2006, vol. 18.
5. Lee B. H., Keum Y. T., Wagoner R. H., Modeling of the friction caused by lubrication and surface roughness in sheet metal forming, “Journal of Materials Processing Technology” 2000, vol. 130-131.
6. Matuszak A., Determination of the frictional properties of coated steel sheets, “Journal of Materials Processing Technology” 2000, vol. 106.
7. Roizard X., Raharijaona F., von Stebut J., Belliard P., Influence of sliding direction and sliding speed on the microhydrodynamic lubrication component of aluminium mill-finish sheets, “Tibology International” 1999, vol. 32.
8. Świątkowski K., Sposoby oceny wielkości tarcia na powierzchniach kontaktu niemetalicznego materiału modelowego i narzędzia, „Obróbka Plastyczna Metali” 2000, nr 7, 2000.
9. Trzepieciński T., Analysis of the friction influence on change of surface topography in strip drawing test, “Tribologia” 2013, tom 44.
Copyright (c) 2018 Autobusy – Technika, Eksploatacja, Systemy Transportowe
This work is licensed under a Creative Commons Attribution 4.0 International License.
