Lubrication mechanism in low speed plastic deformation with a synthetic lubricant - infiltration of lubricant into the boundary contact region

S. Kataoka, J. Kihara, T. Aizawa

Research output: Contribution to journalArticle

Abstract

To investigate and evaluate the micro-pool mechanism in a mixed lubrication regime using polybutene lubricants, experiments were performed using 1 mm brass sheet, for various surface roughnesses of a workpiece and die, lubricant viscosities and extrusion speeds. Systematic study showed that (1) the lower viscosity lubricant is easily squeezed out from the micro-pools into the flat area through the troughs between the tool and workpiece caused by plastic deformation of workpiece, and (2) with decrease in lubricant viscosity and speed, or the larger the tool surface roughness becomes, the more lubricant infiltrates into the tool-workpiece interface, which reduces the actual friction coefficient.

Original languageEnglish
Pages (from-to)3-12
Number of pages10
JournalJournal of Synthetic Lubrication
Volume8
Issue number1
Publication statusPublished - 1991 Apr
Externally publishedYes

Fingerprint

Synthetic lubricants
Infiltration
Lubrication
Lubricants
Plastic deformation
Viscosity
Surface roughness
Polybutenes
Brass
Extrusion
Friction
Experiments

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering

Cite this

Lubrication mechanism in low speed plastic deformation with a synthetic lubricant - infiltration of lubricant into the boundary contact region. / Kataoka, S.; Kihara, J.; Aizawa, T.

In: Journal of Synthetic Lubrication, Vol. 8, No. 1, 04.1991, p. 3-12.

Research output: Contribution to journalArticle

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