Effects of average lubricant velocity and sliding velocity on friction behavior in mild steel sheet forming

Kuniaki Dohda, Zhrgang Wang

Research output: Contribution to journalEditorial

13 Scopus citations

Abstract

A series of experiments was carried out using a rolling-type tribometer to investigate the frictional dependence on the average velocity of the lubricant V at the contact zpne inlet and the relative sliding velocity ΔV between the roll and workpiece during deformation. Experiments using mild steel strips with a dull surface of 0.63 fxm Ra showed that the friction coefficient decreases with increasing forming velocity, especially at high forming velocity. This variation in the friction coefficient may be due to the increase in ΔV derived from the increase of the forming velocity, because the friction coefficient decreases with increasing AV but varies little with increasing V. It was also confirmed that an increase of ΔV or a decrease in V promotes flattening of the workpiece asperities.

Original languageEnglish (US)
Pages (from-to)724-728
Number of pages5
JournalJournal of Tribology
Volume120
Issue number4
DOIs
StatePublished - Oct 1998

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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