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http://dx.doi.org/10.7736/KSPE.2014.31.5.389

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

Choi, Soochang (Korea Institute of Machinery & Materials)
Ro, Seung-Kook (Korea Institute of Machinery & Materials)
Lee, Hyun-Hwa (Korea Advanced Institute of Science and Technology)
Park, Jong-Kweon (Korea Institute of Machinery & Materials)
Publication Information
Abstract
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.
Keywords
Smart Surface Texture; Reduction of Friction; Micro Abrasive Air Jet; Micro-AAJ;
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Times Cited By KSCI : 1  (Citation Analysis)
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