Various continuous bending experiment with three loading rates (100, 300 and 500?mm/min) at room temperature was adopted to investigate the diversity of microstructure, springback and texture of sheet after straightening. Due to grain size at the central layer of the bent plate decreased with the augment of bending rate, and the grain size was finest and most homogeneous at the bending rate of 500?mm/min. After each bending process, due to the springback and the shift of the neutral layer, the load of each time was gradually degressive. The deviations of springback between bending passes declined by degrees under 300 and 500?mm/min rates. However, the springback difference reached a minimum on the ninth pass under 100?mm/min bending rate. In addition, the intensity of {0002} basal texture, which is close-packed plane got to a minimum on the 100?mm/min bending rate. Meanwhile, the intensity of {101ˉ1} and {101ˉ2} textures, which shifted from TD-split to concentrating on the side of the RD, declined with incresing the bending rate. The FE software was used and the experimental process was simulated accurately.
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机译：采用各种连续弯曲实验在室温下进行三个加载速率（100,300和500×mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / mm / min。矫直后的纸张的微观结构和纹理的多样性。由于弯曲板的中心层处的粒度随着弯曲率的增强而降低，并且晶粒尺寸是最好的，最均匀的弯曲率为500Ωmm/ min。在每个弯曲过程之后，由于回弹和中性层的偏移，每次的负载逐渐消失。弯曲通过的回弹偏差下降300和500毫米/最小速率下降。然而，在100×mm / min弯曲速率下的第九次通过时，回弹差异达到最小值。此外，{0002}基底纹理的强度，近填充平面的弯曲率最小为100？mm / min弯曲速率。同时，{101ˉ1}和{101ˉ2}纹理的强度从TD-Split转移到集中在RD侧面，随着弯曲率的增量而下降。使用FE软件，准确模拟实验过程。
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