复合带材冷轧变形行为的上限法分析

 应用上限法对双金属复合带材冷轧时厚度、速度变化与轧制力、能量间的关系进行了分析讨论，建立了复合带材冷轧塑性变形行为的数学模型，在此基础上给出了复合带材的强度计算公式。应用这些公式对铝 钢复合带材的强度进行了计算，计算结果与试验结果吻合较好。

Analysis of Deformation Behavior of Bimetal Strip During Cold Rolling Using Avitzur Method of Upper-Bound Theorem

The effects of total thickness reduction on the rolling layer, and bonding strength of bimetal strip are discussed. A power, rolling force, thickness reductions of each mathematical model of the plastic deformation and bonding strength for cold rolling of two-layer strip is proposed using the upper bound theorem. Furthermore, experiments on two-layer strip rolling are conducted by employing aluminum-tin alloy and soft steel as the layers of the two-layer strips. It is found that all of theoretical predictions are in good agreement with the experimental measurements.