The aim of the present research was to investigate surface topography in terms of different surface roughness parameters and to correlate surface topography change to friction of contact surfaces. For this purpose, different 100Cr6 plate samples with different surface topography were prepared. Using different grades and combinations of grinding and polishing samples with similar Ra values, but different Rku and Rsk values were obtained. To evaluate influence of roughness parameters on friction and wear, dry and lubricated pin-on-disc tests were carried out under different contact conditions. Test results indicate that high Rku and negative Rsk values lead to decrease in friction. To investigate the effect of surface texturing on surface roughness parameters, real roughness profiles were virtually altered to achieve virtually textured surfaces. Using NIST SMATS softgauge for calculation of surface roughness parameters, virtually altered roughness profiles were investigated in terms of texture size, shape and spacing, and their influence on surface roughness parameters, especially on skewness and kurtosis. Lower diameter, higher spacing and wedge-shaped dimples reflect in higher Rku and more negative Rsk parameters.
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ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
July 7–9, 2008
Haifa, Israel
Conference Sponsors:
- International
ISBN:
978-0-7918-4837-1
PROCEEDINGS PAPER
Modeling of Surface Topography for Reduced Friction
Marko Sedlacˇek,
Marko Sedlacˇek
University of Ljubljana, Ljubljana, Slovenia
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Bojan Podgornik,
Bojan Podgornik
University of Ljubljana, Ljubljana, Slovenia
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Jozˇe Vizˇintin
Jozˇe Vizˇintin
University of Ljubljana, Ljubljana, Slovenia
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Marko Sedlacˇek
University of Ljubljana, Ljubljana, Slovenia
Bojan Podgornik
University of Ljubljana, Ljubljana, Slovenia
Jozˇe Vizˇintin
University of Ljubljana, Ljubljana, Slovenia
Paper No:
ESDA2008-59369, pp. 485-490; 6 pages
Published Online:
July 6, 2009
Citation
Sedlacˇek, M, Podgornik, B, & Vizˇintin, J. "Modeling of Surface Topography for Reduced Friction." Proceedings of the ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. Volume 3: Design; Tribology; Education. Haifa, Israel. July 7–9, 2008. pp. 485-490. ASME. https://doi.org/10.1115/ESDA2008-59369
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