Sliding Friction Property of Angle Effect for Crosshatch Micro-grooved Pattern under Lubricated

마이크로 크기를 가지는 빗살무늬 그루우브 패턴의 빗살각도변화에 대한 실험적 마찰특성

  • 김석삼 (경북대학교 기계공학부) ;
  • 채영훈 (경북대학교 기계공학부)
  • Received : 2011.04.08
  • Accepted : 2011.06.24
  • Published : 2011.06.30

Abstract

Micro-scale surface pattern has an benefit of tribological application under lubricated sliding contact. Therefore, a special pattern, that has to reduce the coulomb friction under contact, is considered to be necessary for improved efficiency of machines. The current study investigated the friction property of angle effect for micro-scale grooved crosshatch pattern on bearing steel surface using pin-on-disk type. The samples fabricated by photolithography process and then these are carry out the electrochemical etching process. We discuss the friction property due to the influence of hatched-angle on contact surface. We could be explained the lubrication mechanism for a Stribeck curve. It was found that the friction coefficient depend on an angle of the crosshatch on contact surface. It was thus verified that micro-scale crosshatch grooved pattern could affect the friction reduction.

Keywords

References

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