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Influence of Some Microchanges Generated by Different Processing Methods on Selected Tribological Characteristics.

Gheorghe Nagîț1, Laurențiu Slătineanu1, Oana Dodun1

  • 1Department of Machine Manufacturing Technology, Gheorghe Asachi Technical University of Iasi, 700050 Iasi, Romania.

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Summary

Surface processing methods significantly impact tribological properties. Ball vibroburnishing demonstrated superior performance in reducing friction and mass loss compared to turning, grinding, and standard ball burnishing.

Keywords:
empirical mathematical modelerosionfriction coefficientmachining methodsmeasurementmicrochangessurface layerwear

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Tribology

Background:

  • Surface processing methods alter physical-mechanical properties and microgeometry.
  • Surface microchanges influence tribological characteristics of the surface layer.

Purpose of the Study:

  • To investigate the tribological behavior of surfaces processed by different methods.
  • To analyze changes in the coefficient of friction and mass loss over time.

Main Methods:

  • Experimental research using a universal lathe.
  • Surfaces processed by turning, grinding, ball burnishing, and vibroburnishing.
  • Mathematical modeling to establish empirical relationships.

Main Results:

  • Established power-type function empirical models correlating pressure, duration, and output parameters.
  • Identified ball vibroburnishing as the optimal final surface treatment process.
  • Quantified the influence of processing methods on friction coefficient and mass loss.

Conclusions:

  • The choice of surface processing method critically affects tribological performance.
  • Ball vibroburnishing offers significant advantages for enhancing surface durability and reducing wear.
  • Empirical models provide a quantitative understanding of tribological behavior under varying test conditions.