An Upper-Bound Approach to Cold-Strip Rolling
An Upper-Bound Approach to Cold-Strip Rolling
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冷带钢轧制的上限方法
DOI：
10.1115/1.3670446
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发表时间：
1964
期刊：
影响因子：
--
通讯作者：
B. Avitzur
中科院分区：
文献类型：
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作者：
B. Avitzur
本文在Mises材料假设下对冷轧带钢轧制过程进行了分析。计算能量消耗的上下限。然后，假定带材和轧辊之间的剪切恒定，确定实际能量的近似值。另一个值是通过假定带材和轧辊之间的库仑摩擦而得到的。通过所需能量与理想能量的比率来确定效率因子，所需能量是带材表面上的变形和摩擦损失的组合能量。总变形能包括与假定应变场相关的内部应变能（理想能量）和沿速度不连续面沿着的能量。辊扭矩、所需的最小摩擦（或最大可能的减少）和效率被确定为其它过程变量的函数。结果以图形和数学表达式的形式呈现。这项研究是早期论文[6]的直接续篇，其中忽略了速度不连续性。
The operation of cold-strip rolling is treated under the assumption of “Mises” material. A lower upper bound on energy consumption is computed. Then, assuming constant shear between strip and rolls, an approximate value of the actual energy is determined. Another value is arrived at by assuming Coulomb friction between strip and rolls. An efficiency factor is determined through the ratio of required to ideal energy, the former being the combined energy of deformation and friction losses on the strip surface. The total deformation energy includes the internal strain energy (ideal energy) associated with an assumed strain field and the energy along the surfaces of velocity discontinuities. The roll torque, minimum required friction (or maximum possible reduction), and efficiency are determined as functions of the other process variables. Results are presented graphically and as mathematical expressions. This study is a direct sequel to an earlier paper [6], in which velocity discontinuities were disregarded.