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 Friction Characteristics According to Micro-dimple Patterns

마이크로 딤플 패턴에 따른 마찰특성에 관한 연구

  • Hwang, Nam-Seong (Dept. of Mechanical Engineering, Yeungnam University College)
  • 황남성 (영남이공대학교 기계계열)
  • Received : 2015.05.06
  • Accepted : 2015.05.29
  • Published : 2015.06.30
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Abstract

The purpose of this study is to investigate friction characteristics according to micro-dimple patterns. The surface texturing of micro-dimple patterns was tested to examine the friction of pin-on-disk using flat-on-flat contact geometry. The patterns of both dimple circle and groove pattern were adopted to carry out the effect of those ones. In the low loads, such as 13.8N and 27.7N, the friction coefficients of groove pattern were lower than those of dimple circle pattern. In many other comparisons of normal loads, the groove pattern had lower friction forces, which showed the effect of surface texturing. The relationship between sliding time and friction forces showed that the increase of friction forces of groove pattern were relatively lower than those of dimple pattern. In conclusion, the dimple patterns of dimple-circle pattern and groove pattern strongly contributed to reducing the friction between contacting materials.

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References

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