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全異步軋制的應力狀態及軋制力

  • 摘要: 本文分析了全異步軋制時變形區的應力狀態。其應力狀態是,在用全異步帶張的拉直法冷軋薄帶材時為軋制壓力p、拉應力σx以及由于異步值而產生的切應力τ。此切應力不僅有清除同步軋制時"摩擦峰"的作用,而且還對軋件的塑性變形起切變作用。故其塑性方程式為:(σx++p)2+4τ2=4K2。據此,我們推導出了全異步軋制時的軋制力公式,并用此公式計算的軋制力值同全異步軋制的實驗數據進行了比較。

     

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