S115015 マイクロテクスチャが付与されたジャーナル軸受の摩擦特性([S11501]トライボロジーの基礎と応用(1))

概要

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The present study describes tribological properties of journal type bearing having micro groove on the surface made from cast iron. The micro groove was fabricated with plastic deformation resulted in rolling contact with a small cemented carbide sphere. A vanishing process was occasionally applied to truncate the surface after grooving. The geometry of the groove was approximately 1 pm in depth and 50 pm in width. The interval and the angle of the groove was controlled to adjust feed rate of the sphere. The tribological properties were examined with a testing apparatus consisting from the grooved shaft and the journal with a super finished surface. Results showed that the addition of the parallel groove to the shaft surface is effective for the reduction of friction coefficient at lower applied load and that the effect of the truncation was larger at higher sliding speed.
一般社団法人日本機械学会の論文
2011-09-11