Article (Scientific journals)
Efficient algorithmic approach for mixed-lubrication in cold rolling
Stephany, Antoine; Ponthot, Jean-Philippe; Collette, C. et al.
2004In Journal of Materials Processing Technology, 153 (1), p. 307-313
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Keywords :
cold rolling; mixed lubrication; slab method; radial return
Abstract :
[en] A model of cold rolling taking into account lubrication in mixed mode was developed. The main objective is to obtain a numerical tool that permits us to optimise a mill configuration from the lubrication point of view. It means that lubricant viscosity but also roll diameter and roughness, rolling diagrams, etc could be modified to improve stability and efficiency of the mill. A modified slab method is solved iteratively and is coupled with a sophisticated tribological model. A general calculation of the modified Reynolds equation is presented in order to evaluate the fluid pressure for any piezoviscosity law. The coupling is made through the calculation of fluid thickness and friction along the roll bite. The evolution of the cylinder/strip contact area due to the asperity crushing along the roll bite is also considered. A parametric study has been undertaken in order to determine the influence of various process parameters on friction and lubricant flow. Applications to industrial cases obtained from Cockerill Sambre plant will show the applicability of the method. (C) 2004 Elsevier B.V. All rights reserved.
Disciplines :
Mechanical engineering
Materials science & engineering
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Stephany, Antoine;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Ponthot, Jean-Philippe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Collette, C.
Schelings, J.;  Cockerill Sambre, Arcelor Group, Belgium > Technical Division
Language :
English
Title :
Efficient algorithmic approach for mixed-lubrication in cold rolling
Publication date :
10 November 2004
Journal title :
Journal of Materials Processing Technology
ISSN :
0924-0136
Publisher :
Elsevier Science, Lausanne, Switzerland
Special issue title :
SI
Volume :
153
Issue :
1
Pages :
307-313
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 November 2009

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