中文摘要：

分析了利用曲面柔性轧制方法实现三维曲面件成形过程中板料厚度变化与轧制变形之间的关系,推导出当工作辊弯曲形状为圆弧时,凸曲面柔性轧制不均匀辊缝的辊缝分布以及工作辊排布函数公式.根据该公式对凸曲面柔性轧制进行数值模拟研究,并通过计算将离散辊全局压下量转化为局部压下分量,得到较好的模拟结果.研制了小型实验装置并进行成形实验,得到典型实验件.数值模拟与实验结果表明,曲面柔性轧制用于成形三维曲面零件具有可行性和实用性.

英文摘要：

The relationship between the thickness variation of the rolling sheets and the deformation of the rolling for the three-dimensional curved surface parts was analyzed by a curved surface flexible rolling method. The distribution of the uneven roll gap and the function of the working roll arrangement in a convex surface flexible rolling were deduced when the rolls bending shape is the circular. The numerical simulation of the convex surface was applied for the flexible rolling according to the formula. By means of a simple algorithm, the global coordinate reduction has been converted into local coordinate one which led to a better simulation results. A small experimental device was developed and typical test parts were obtained. The simulation and experimental results showed that the curved surface flexible rolling method for three-dimensional curved surface parts is feasible and practical.