高温加熱を受けたアルミニウム合金の高力ボルト摩擦接合実験

概要

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The results of the experiment of high strength bolted aluminum alloy joints to which high temperature heating was given are described herein. 1)In A6061-T6 and A6063-T6, bolt axial tensions decreased when the high temperature heating was received. The bolt axial tension of A6063-T6 was lower than that of A6061-T6 in each temperature. 2)In the experiment after joint that had received high temperature heating was returned to room temperature, the maximum yield strength value in experiment was lower than the value led by calculation when the temperature was over 200℃. 3)In the experiment when a experiment body was receiving high temperature heating, μ of A6061-T6 and A6063-T6 bolted by nut rotation method was lower than standard value 0.45 when temperature was over 200℃. In the experiment joint that had received high temperature heating was returned to usual temperature, μ of A6061-T6 was lower than standard value 0.45 when temperature was over 150℃ and μ of A6063-T6 was lower than standard value 0.45 when temperature was over 200℃. 4)The tendency was seen that μ of the experiment body bolted by nut rotation method was higher than μ of the experiment body bolted by standard bolt tension.
一般社団法人日本建築学会の論文
2002-03-20