Lubrication; Cold rolling; Micro-Plasto-Hydrodynamic; friction control; roll bite behavior
Abstract :
[en] Micro Plasto-Hydrodynamic (MPH) lubrication is a general mechanism in metal forming that consists in a re-lubrication of tool-piece solid contacts by an outflow of lubricant from pressurized “pockets” promoted by the plastic deformation. MPH lubrication is one of the main sources of friction variation (e.g. uncontrolled friction) in metal forming processes like strip drawing or cold rolling. This paper presents experimental results giving evidence of the MPH lubrication mechanism in cold rolling and a new lubrication model that predicts for strip drawing conditions MPH lubrication initiation and lubricant extension along the solid contacts initially in boundary condition. This MPH model could be implemented in a cold rolling model soon to help in high strength steels developments on cold rolling mills.
Disciplines :
Mechanical engineering
Author, co-author :
Laugier, Maxime
Boman, Romain ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Legrand, Nicolas
Ponthot, Jean-Philippe ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Tornicelli, Maurice
Bech, Jacob
Carretta, Yves ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Language :
English
Title :
Micro-plasto-hydrodynamic lubrication: a fundamental mechanism in cold rolling
Publication date :
June 2014
Journal title :
Advanced Materials Research
ISSN :
1022-6680
eISSN :
1662-8985
Publisher :
Trans Tech Publications, Zurich, Switzerland
Special issue title :
Tribology in Manufacturing Processes & Joining by Plastic Deformation
Volume :
966-967
Pages :
228-241
Peer reviewed :
Peer reviewed
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie FSE - Fonds Social Européen
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