The larger the coefficient of friction is, the larger TAZ becomes. 摩擦系數越大，熱影響區越大。
In most cases in which a coefficient has been calculated the experimental situation was remote from practical processing conditions. 大多情況是，計算摩擦系數的試驗條件與實(shí)際生產(chǎn)加工條件間，存在有很大的差別。
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