Effect of surface roughness on the coefficient of friction in the ring compression test

Authors

  • Paulo Ricardo Böesch Júnior Universidade Federal do Rio Grande do Sul
  • Daiana Mello Margutti Universidade Federal do Rio Grande do Sul
  • Vinícius Martins Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense
  • Alex Fabiano Bueno Universidade Federal do Rio Grande do Sul
  • Lírio Schaeffer Universidade Federal do Rio Grande do Sul

DOI:

https://doi.org/10.4013/ete.2012.81.01

Abstract

The evaluation of the tribological conditions, among which the friction by means of simple models are questionable because the influence of superficial roughness and strength of materials, among other factors, is not considered. This paper presents a detailed analysis on the influence of surface roughness on friction at the specimen/die interface. The studies are based on experimental data obtained by the ring compression test, which they were compared with results of simulations and the calibration curves of friction modeled in finite element software. A series of ring compression tests was performed to obtain the friction coefficient for various ranges of surface roughness of the specimen.

Key words: ring compression test, surface roughness, friction coefficient, numerical simulation.

Author Biographies

Paulo Ricardo Böesch Júnior, Universidade Federal do Rio Grande do Sul

Daiana Mello Margutti, Universidade Federal do Rio Grande do Sul

Vinícius Martins, Instituto Federal de Educação, Ciência e Tecnologia Sul-rio-grandense

Alex Fabiano Bueno, Universidade Federal do Rio Grande do Sul

Lírio Schaeffer, Universidade Federal do Rio Grande do Sul

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Issue

Vol. 8 No. 1 (2012): jan-jun

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Article

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