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A Study on the Flow Velocity of Micro Channels Depending on Surface Roughness  

Park, Hyun-Ki (아주대학교 기계공학과)
Kim, Jong-Min (아주대학교 기계공학과)
Hong, Min-Sung (아주대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.17, no.1, 2008 , pp. 59-64 More about this Journal
Abstract
Micro machining can manufacture complex shapes with high accuracy. Especially, this enables wide application of micro technology in various fields. For example, micro channels allow fluid transfer, which is a widely used technology. Therefore, liquidity research of flow in micro channels and micro channel manufacturing with use of various materials and cutting conditions has very important meaning. In this study, to find out correlation between fluid velocity in micro channels and surface roughness, we manufactured micro channels using micro end-mill and dropped ethanol into micro channels. We compared several surface roughness and fluid velocity in micro channels that were created by various processing conditions. Finally, we found out relationship between fluid velocity and surface roughness in micro channels of different materials.
Keywords
Micro channel; Flow velocity; Minimum chip thickness; Capillary theory; Surface roughness; Machining conditions;
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