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在分析不对称轧制几何学和运动学基础上,作者导出不对称轧制时轧件弯曲曲率计算公式: ρ=2/h_1·2(1-k)+ε[k(3-2c)-(1+2c)]/2(1+k)-ε[k(3-2c)+(1+2c)] C=k(3-k)~2/(1+k)~3式中h_1:轧件出口厚度;ε:压下率;k:辊径比。由此得出临界压下率公式如下: ~εk=2(1-k)/(1+2c)-k(3-2c) 为检验上述公式,曾将计算值和测量值作比较。结果表明以上公式可用于工程计算。
Based on the analysis of asymmetric rolling geometry and kinematics, the author derives the calculation formula of the bending curvature of the workpiece during asymmetric rolling: ρ = 2 / h_1 · 2 (1-k) + ε [k (3-2c) - (1 + 2c)] / 2 (1 + k) -ε [k (3-2c) + (1 + 2c)] C = k (3-k) : Rolling exit thickness; ε: reduction rate; k: roller diameter ratio. From this it follows that the critical reduction ratio is as follows: ~ εk = 2 (1-k) / (1 + 2c) -k (3-2c) To verify the above formula, the calculated and measured values were compared. The results show that the above formula can be used for engineering calculation.