Finite element hydrodynamic friction model for metal forming

Wing Kam Liu*, Yu‐Kan ‐K Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The complex contact conditions on the three‐dimensional (3‐D) tooling‐workpiece interface, such as non‐penetrations, slip–stick phenomena and friction forces due to the relative motion of contacting surfaces, are of vital importance in metal forming operations. Usually, a lubricant is provided as an interface medium between the tool and the workpiece to avoid strain localization, wear and surface damage. Hence, a simple friction law such as Coulomb friction, involving only a constant friction coefficient, cannot model the contact phenomena accurately. In this research, a realistic friction model, which accounts for the tribological behaviour, and most importantly, the effect of surface roughness on the lubricated contact, is developed. This model has been implemented in a 3‐D arbitrary Lagrangian Fulerian finite element code for metal forming analysis. The applicability of the proposed model is demonstrated by the simulation of fluid‐lubricated thrust bearing and sheet metal stretch forming.

Original languageEnglish (US)
Pages (from-to)4015-4037
Number of pages23
JournalInternational Journal for Numerical Methods in Engineering
Volume37
Issue number23
DOIs
StatePublished - Dec 15 1994

ASJC Scopus subject areas

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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