S1105-1-1 キャビテーションピーニングによる球状黒鉛鋳鉄の摩擦特性の改善(表面改質とトライボロジー1)

概要

論文の詳細を見る
Although cavitation normally causes severe damage in hydraulic machinery, cavitation impact can be utilized for surface treatment in the same way as shot peening. The peening method using cavitation impact is named as cavitation peening. Plastic deformation pits induced by peening changes friction characteristics on metallic surface. When friction coefficient μ decreases with slipping velocity v, stick-slip occurs. In order to reduce negative slope of μ-v curve to eliminate stick-slip, friction characteristics of peened surface was evaluated. Tested material was quenched spheroidal graphite cast iron which was used as guides for working machines. The friction coefficient was measured by using two types of ball on plate machine. It was revealed that the negative slope of μ-v curve on the surface was improved by plastic deformation pits induced by cavitation peening and shot peening.
社団法人日本機械学会の論文
2009-09-12