Two-Dimensional Roll Bite Model with Lubrication for Cold Strip Rolling
| Autor: | Nicolas Legrand, Pierre Montmitonnet, Talib Dbouk |
|---|---|
| Přispěvatelé: | Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), ArcelorMittal Maizières Research SA, ArcelorMittal |
| Rok vydání: | 2014 |
| Předmět: |
Engineering drawing
Engineering Friction business.industry Flow (psychology) Roll Bite Model General Engineering Mechanical engineering Surface finish Deformation (meteorology) Flattening [SPI.MAT]Engineering Sciences [physics]/Materials Lubrication Cold Rolling Thin Strip Slab Microplasticity Reduction (mathematics) business |
| Zdroj: | Tribology in Manufacturing Processes-ICTMP 2014 Tribology in Manufacturing Processes-ICTMP 2014, Jun 2014, Darmstadt, Germany. pp.48-62, ⟨10.4028/www.scientific.net/AMR.966-967.48⟩ |
| ISSN: | 1662-8985 |
| DOI: | 10.4028/www.scientific.net/amr.966-967.48 |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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