[en] This paper presents recent investigations in the field of lubricant escapes from asperities. This phenomenon, named Micro Plasto Hydrodynamic Lubrication (MPHL), induces friction variation during metal forming processes. A better understanding of MPH lubrication would lead to a better management of friction, which is a central element in most sheet metal forming processes. To fulfil that goal, experiments were conducted in plane strip drawing using a transparent upper tool in order to observe lubricant flow around macroscopic pyramidal cavities. These experiments were then numerically reproduced with two complementary Finite Element models. The numerical results are discussed in this paper and show good agreement with experimental measurements.
Disciplines :
Materials science & engineering
Author, co-author :
Hubert, Cédric; Université de Valenciennes et du Hainaut-Cambrésis > LAMIH UMR CNRS
Dubois, André; Université de Valenciennes et du Hainaut-Cambrésis > LAMIH UMR CNRS
Dubar, Laurent; Université de Valenciennes et du Hainaut-Cambrésis > LAMIH UMR CNRS
Laugier, Maxime; ArcelorMittal Global R&D
Legrand, Nicolas; ArcelorMittal Global R&D
Boman, Romain ; Université de Liège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Ponthot, Jean-Philippe ; Université de Liège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Carretta, Yves ; Université de Liège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Language :
English
Title :
Complementary approaches for the numerical simulation of the Micro- Plasto-Hydrodynamic Lubrication regime
Publication date :
2015
Journal title :
Key Engineering Materials
ISSN :
1013-9826
eISSN :
1662-9795
Publisher :
Trans Tech Publications, Aedermannsdorf, Switzerland
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Bibliography
Bech, J., Bay, N., Eriksen, M., Entrapment and escape of liquid lubricant in metal forming (1999) Wear, 232, pp. 134-139
Hubert, C., Bay, N., Christiansen, P., Deltombe, R., Dubar, L., Dubar, M., Dubois, A., Numerical simulation of lubrication mechanisms at mesoscopic scale (2011) Proceedings of the 14th International ESAFORM Conference, , Queen's University Belfast
Dubar, L., Hubert, C., Christiansen, P., Bay, N., Dubois, A., Analysis of fluid lubrication mechanisms in metal forming at mesoscopic scale (2012) CIRP Annals - Manufacturing Technology, 61, pp. 271-274
Belotserkovets, A., Dubois, A., Dubar, M., Dubar, L., Deltombe, R., Vandekinderen, H., Damasse, J.M., 2D asperity deformation of stainless steel strip in cold rolling (2008) International Journal of Material Forming, 1, pp. 351-354
METAFOR, A Large Strain Finite Element Software, , http://metafor.ltas.ulg.ac.be, LTAS-MN2L, ULg
Carretta, Y., (2014) Finite Element Modelling of Micro-plasto-hydrodynamic Lubrication in Order to Take this Phenomenon into Account in a Cold Rolling Model, , (In French). PhD Thesis, University of Liège
Laugier, M., Boman, R., Ponthot, J.-P., Tornicelli, M., Bech, J., Carretta, Y., Micro-plasto-hydrodynamic lubrication: A fundamental mechanism in cold rolling (2014) Advanced Materials Research Trans Tech Publications, 966-967, pp. 228-241
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