한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제31권5호
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  • Pages.389-394
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  • 2014
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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Micro-AAJ를 이용한 엔진 피스톤 링의 마찰 저감 표면 개발

Development of Engine Piston Ring Surface for Friction Reduction using Micro Abrasive Air Jet

  • 투고 : 2013.03.19
  • 심사 : 2014.04.09
  • 발행 : 2014.05.01
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초록

In this paper, we report a new manufacturing method for friction reduction using micro-AAJ (abrasive air-jet) machining. AAJ machining employs compressed air to accelerate a jet of high-speed particles to mechanically machine features, including micro-channels and micro-holes, into glass, metal, or polymer substrates for use in microfluidics, MEMS (micro electromechanical systems). And we introduce the micro-AAJ machining system, which consists of a micro-AAJ nozzle and a five-axis positioning system. Various micro-AAJ nozzles can be used, depending on the required surface structure, and three-dimensional machining is possible. We machined samples under six different conditions and describe machining results obtained while using it. We also measured the coefficient of friction of micro-textured surfaces. We report the coefficient of friction of micro-textured surfaces patterned using micro-AAJ machining for engine piston ring.

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참고문헌

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