Mixed Lubrication Regime Modelling in Cold Strip Rolling: Toward a More Complete Physical Description of the Boundary Component

14 pages•Published: August 6, 2026

Pierre Montmitonnet, Imene Lahouij, Cynthia Elhajj, Geoffroy Bouillet, Linh Phuong Luong, Jean-Denis Mithieux, Alexandre Barthelemy, Ariane Viat and Vincent Duhoux

Abstract

Predictive models are needed to design cold strip rolling pass schedules, investigate process problems and product quality. Due to the huge and complex impact of friction on this process, accurate friction models are necessary. The forward slip e.g. depends not only on average friction, but also on its space-distribution; friction also varies in time, e.g. accelerations and decelerations result in large variations of force, torque and forward slip during transients, which need to be considered in the presetting of stands.
Describing space- and time-variations of friction necessitates including the scale at which physical and chemical phenomena vary and determine friction, i.e. the microscale. This paper describes our latest efforts to enrich our mixed lubrication modelling of cold rolling, in search for a more accurate description of what is going on at asperity scale in the strip-roll interface. It involves a macroscale description of the interface temperature profile, criteria for lubricant additive desorption, for asperity scale adhesion and metallic transfer film formation, major phenomena which impact the degree of ploughing friction. Principles of the model are recalled, and the theoretical results are confronted with experiments on a high-speed laboratory rolling mill.

Keyphrases: boundary lubrication, cold strip rolling, mixed lubrication, modelling

In: Numpon Mahayotsanun (editor). Proceedings of The 11th International Conference on Tribology in Manufacturing Processes & Advanced Surface Engineering, vol 4, pages 90-103.

Links:	https://easychair.org/publications/paper/rTgQ
	https://doi.org/10.29007/gwmz

BibTeX entry

@inproceedings{ICTMP2026:Mixed_Lubrication_Regime_Modelling,
  author    = {Pierre Montmitonnet and Imene Lahouij and Cynthia Elhajj and Geoffroy Bouillet and Linh Phuong Luong and Jean-Denis Mithieux and Alexandre Barthelemy and Ariane Viat and Vincent Duhoux},
  title     = {Mixed Lubrication Regime Modelling in Cold Strip Rolling: Toward a More Complete Physical Description of the Boundary Component},
  booktitle = {Proceedings of The 11th International Conference on Tribology in Manufacturing Processes & Advanced Surface Engineering},
  editor    = {Numpon Mahayotsanun},
  series    = {EPiC Series in Technology},
  volume    = {4},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2516-2322},
  url       = {/publications/paper/rTgQ},
  doi       = {10.29007/gwmz},
  pages     = {90-103},
  year      = {2026}}

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