Paper Title:
Tribological Investigations of Parts Sintered and Coated by Laser Beam
  Abstract

In this work we intend to investigate the surface properties of laser sintered and coated parts, by measurement of friction coefficient and wear rate. The main aim of this research is to justify laser sintered prototype tools for injection molding of fibre-reinforced polymers. For increase of wear resistance we used hard Co-based and Fe-based coatings on laser-sintered phosphorous bronze and unalloyed steel substrate. Short carbon- and glass-fibre-reinforced polymers were used as counter bodies. For the tribological laboratory model tests a pin-on-disk test rig was used. In case of coated parts – with higher wear resistance – we used a cylinder-on-cylinder tribometer. The tribological properties were determined at different load conditions. Our results show that the friction coefficient and wear resistance of laser treated surfaces are good. The coefficient of friction of coated specimens is slightly less, but the wear rate is significantly less.

  Info
Periodical
Materials Science Forum (Volumes 473-474)
Edited by
J. Gyulai
Pages
255-260
DOI
10.4028/www.scientific.net/MSF.473-474.255
Citation
T. Sebestyén, G. Buza, F. Franek, J. Takács, Z. Kálazi, A. Pauschitz, L. S. Tóth, "Tribological Investigations of Parts Sintered and Coated by Laser Beam", Materials Science Forum, Vols. 473-474, pp. 255-260, 2005
Online since
January 2005
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$32.00
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