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轧制单位压力由径向压应力和切向摩擦应力合成。摩擦系数等于外摩擦系数与内摩擦系数之和。内摩擦系数为咬入角的函数。建立了一个轧制单位压力新公式和内摩擦系数实验公
Rolling unit pressure by the radial compressive stress and tangential friction stress synthesis. The friction coefficient is equal to the sum of the external friction coefficient and the internal friction coefficient. The coefficient of internal friction is a function of the bite angle. A new equation of unit rolling force and internal friction coefficient were established