Two-dimensional roll bite model with lubrication for cold strip rolling - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2014

Two-dimensional roll bite model with lubrication for cold strip rolling

(1) , (1) , (2)
1
2

Résumé

To help optimize cold rolling operations, mixed lubrication models have been developed and embedded in roll bite models. The resulting models combine micro-fluidics in a porous medium (the lubricant flow between the contacting rough surfaces), microplasticity (roughness flattening / scratching), macro-plasticity (strip reduction) and roll thermo-elasticity. They are therefore really complex and need a lot of physical data. Based on previous developments, a new, simpler version of our lubrication model has been coupled with a new roll bite model recently presented: slab method for the strip elastic-plastic deformation (Prandtl-Reuss equations), a complete influence functions set for the roll deformation with circumferential displacements, and an efficient, adaptive relaxation technique when iterating between roll and strip models. The lubrication model is elaborated on Wilson and Sheu's mixed lubrication model. The paper describes the implementation and compares its results with our previous, more complex version; a reasonable agreement is found. Several test cases of increasing difficulty show the robustness of the model and of its implementation. As a conclusion, a brief perspective is provided on how this new type of roll bite model could be used in industry.
Fichier non déposé

Dates et versions

hal-01052915 , version 1 (29-07-2014)

Identifiants

Citer

Talib Dbouk, Pierre Montmitonnet, Nicolas Legrand. Two-dimensional roll bite model with lubrication for cold strip rolling. Tribology in Manufacturing Processes - ICTMP 2014, Jun 2014, Darmstadt, Germany. pp.48-62, ⟨10.4028/www.scientific.net/AMR.966-967.48⟩. ⟨hal-01052915⟩
91 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More