C114 回転ロッドと銅板との間の有効動摩擦係数に及ぼすロッド形状の影響

赤外線放射温度計による温度場の測定と有効動摩擦係数の評価

抄録

In the present study, unsteady-state friction heating experiments and corresponding numerical analysis have been conducted for the purpose of evaluating the effective dynamic coefficient of friction μ between a rotating rod and a copper plate, which is regarded as one of essential key parameters for elucidating heat transfer process in friction welding, friction stir welding, spot friction welding, surface modification, and so on. It has been shown that, the effective dynamic coefficient of friction μ of copper plate is evaluated from about 0.30 to 0.35 to first approximation, and almost no effects of the tip radius of rotating rod on μ has been observed under the present experimental conditions.