Contribution of viscous shear to friction in cold rolling of low-carbon steel

L. J.M. Jacobs*, J. van der Lugt, M. B. de Rooij

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
89 Downloads (Pure)

Abstract

This work shows that for temperatures, pressures and shear rates that are common in cold rolling of low-carbon steel, viscous shear stress significantly contributes to the total friction force. Experiments were carried out to validate the theory on lubricant film formation and elasto-hydrodynamic lubrication, both with laboratory scale tribometers and a semi-industrial pilot mill facility. These experiments showed that at high shear rates, that are common in cold rolling, the lubricant does not behave as a Newtonian fluid anymore; moreover the viscosity at high pressure cannot accurately be described by a simple exponential law. With the correct relations implemented in a rolling model, both rolling force and forward slip are predicted with good accuracy for hydrodynamically lubricated cold rolling experiments.

Original languageEnglish
Article number109102
JournalTribology international
Volume191
Early online date10 Nov 2023
DOIs
Publication statusPublished - Mar 2024

Keywords

  • Cold rolling
  • Low carbon steel
  • Lubrication
  • Modelling
  • UT-Hybrid-D

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