Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Friction Characteristics for Density of Micro Dimples Using Photolithography

포토리소그라피를 이용한 마이크로 딤플의 밀도에 따른 마찰 특성

  • 김석삼 (경북대학교 기계공학부) ;
  • 채영훈 (경북대학교 트리아볼로지연구소)
  • Published : 2005.03.01
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Abstract

Surface texturing of tribological application is another attractive technology of friction reducing. Also, reduction of friction is therefore considered to be a necessary requirement for improved efficiency of machine. In this paper attempts to investigate the effect of density for micro-scale dimple pattern using photolithography on bearing steel flat mated with pin-on-disk. We demonstrated the lubrication mechanism for a Stribeck curve, which has a relationship between the friction coefficient and a dimensionless parameter for lubrication condition. It is found that friction coefficient is depended on the density of surface pattern. It was thus verified that micro-scale dimple could affect the friction reduction considerably under mixed and hydrodynamic lubrication conditions from based on friction map. Lubrication condition regime has an influence on the friction coefficient induced the density of micro dimple.

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References

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Cited by

  1. The Effect of Reduction of Friction Heat by Micro Dimple on the Sliding Surface of Elastomer vol.30, pp.8, 2013, https://doi.org/10.7736/KSPE.2013.30.8.847