Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on the Friction and Wear of Bronze Sintered Friction Materials

동계소결 마찰재의 마찰마모에 관한 연구

  • Lee, Jong-Hyung (School of Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Park, Moo-Soo (Department of Computer Aided Die and Mold Engineering, Daegu Polytechnic College) ;
  • Yang, Seong-Hyeon (Daegu AUTO 114 Co.)
  • Published : 2004.09.30
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Abstract

The effect of bronze sintered friction materials on frictional and mechanical properties is studied with the content(8~18 wt,%) and shapes (flake and irregular) of graphite that is used as solid lubricants to meet diverse characteristics such as low coefficient of friction, low wear rate and high bending strength. The content and shapes of graphite are optimized by statistical experiments. Friction test was carried out measure friction coefficient, temperature dependence and wear rate. As a result of experiments, the density, hardness and bending strength with a shape of flake graphite are lower and decrease rapidly than that of Irregular, as the content of graphite increases up to 18 wt% Aftei friction test, coefficient of friction is 0.3~0 4 and wear rate is $0.32{\sim}2.98{\times}10^{-7}cm^3/kg{\cdot}m$. When the content of graphite increases, coefficient of friction increases In a shape of flake graphite and decreases in a shape of irregular graphite.

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