micro-plasto-hydrodynamic; lubrication; metal forming; finite element method;; liquid lubrication mechanisms; ALE formulation
Abstract :
[en] This paper presents a numerical investigation of microscopic lubricant flows from the cavities to the plateaus
of the surface roughness of metal sheets during forming processes. This phenomenon, called micro-plastohydrodynamic
lubrication, was observed experimentally in various situations such as compression sliding
tests, strip drawing and cold rolling. It leads to local friction drop and wear reduction. It is therefore critical to
achieve a good understanding of this phenomenon. As to move towards that goal, a multiscale fluid–structure
interaction model is developed to model lubricant flows at the microscopic scale. These simulations are
made possible through the use of the Arbitrary Lagrangian Eulerian (ALE) formalism. In this paper, this
methodology is used to study plane strip drawing. The numerical model is able to predict the onset of lubricant
escape and the amount of lubricant flowing on the plateaus. Numerical results exhibit good agreement with
experimental measurements.
Disciplines :
Mechanical engineering
Author, co-author :
Carretta, Yves; Université de Liège - ULiège
Bech, Jacob; 2Department of Wind Energy, Technical University of Denmark, Lyngby, 2800, Denmark
Legrand, Nicolas; ArcelorMittal Global R&D, ,Maizières-les-Metz, France
Laugier, Maxime; ArcelorMittal Global R&D, ,Maizières-les-Metz, France
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
Language :
English
Title :
Numerical modelling of microscopic lubricant flow in sheet metal forming. Application to plane strip drawing
Publication date :
February 2017
Journal title :
International Journal for Numerical Methods in Engineering
ISSN :
0029-5981
eISSN :
1097-0207
Publisher :
Wiley, Chichester, United Kingdom
Volume :
112
Pages :
203-237
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
First-International: convention n◦1217863
Funders :
DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie
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