無負荷運転時における検索砥石の温度分布と熱変形

概要

論文の詳細を見る
This paper deals with the temperature distributions and the thermal deformations of the grinding wheels. The investigated wheels are a conventional vitrified bonded alumina wheel and a CBN wheel, The hub material of CBN wheel is an aluminum alloy. From the experimental results measured with the thermographs, it derived that the temperature of aluminum hub is directly affected by the heat flowed from the rotating wheel spindle. However, the influence of heat flow on the vitrified bonded wheel is restricted to the inner abrasive layer of wheel. This difference of temperature distribution between both wheels can be explained by the differences of the thermal conductivity and the air-cooling ability of the wheels. The distance between both peripheries of CBN wheel and wheel spindle remarkably increases with the increase of wheel running time. It can be considered that this large expansion is almost contributed by the thermal expansion of aluminum hub. Key words : grinding machine, grinding wheel, CBN wheel, temperature distribution, thermal de-formation, thermograph,
公益社団法人精密工学会の論文
1984-02-05