Abstract:Due to the lack of accurate and reliable model during heavy plate flattening process, the setting of process parameters mainly relies on manual experience, which restricts the improvement of production efficiency and product quality. The flattening model which is the key bottleneck problems to realize the automatic flattening process was studied in this paper. The mathematical model of the flattening mill was established according to the theory of elastoplastic mechanics and the characteristics of flattening process. The flattening force and the stroke can be calculated by this model when the mechanical parameters, initial flatness or curvature of the plate are known. According to the data calculated by the flattening model, the finite element method was used to simulate the flattening process, the position and displacement data of each node of the plate were obtained, and the flatness of the heavy plate after flattening was calculated. The result showed than the flatness of the heavy plate was less than 2 mm/m, which was better than the delivery standard, and the reliability of the model was verified.
江连运, 王萍, 李恒, 卫垚宇, 薛志伟. 宽厚板压力矫平压下模型理论建模与有限元分析[J]. 中国冶金, 2021, 31(6): 87-91.
JIANG Lian-yun, WANG Ping, LI Heng, WEI Yao-yu, XUE Zhi-wei. Theoretical modeling and finite element analysis of heavy plate under flattening[J]. China Metallurgy, 2021, 31(6): 87-91.
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