A prediction method based on genetic algorithm ( GA ) and back propagation neural network ( BPNN ) was proposed to solve springback problem of sheet metal after air-bending forming and punch design. 为解决金属板材折弯成形的回弹及凸模设计问题,提出了一种基于遗传算法的反向传播神经网络预测方法。
Existing problem with sheet packing device in the two shearing lines in Benxi Iron and Steel Company, its modification measures and the result after modernization. 介绍了本钢冷轧薄板公司横剪机组板垛设备存在的问题,改造方法和改造后的使用效果。
The problem of sheet forming and the feasibility of this method in production were also studied in this paper. 研究板料成型过程中所发现的问题。探索金属球做传力介质在生产中应用的可行性。
Springback is an inevitable problem in sheet metal stamping forming, and is the research hotspot and difficulty in this field. 回弹现象是车辆覆盖件冲压成形中不可避免的问题,也是该领域研究的热点和难点问题。
For the simulation accuracy of springback problem in sheet metal forming, the effect of punch virtual velocity and sheet virtual density on the sheet strain energy was studied in this paper. 针对板料成形回弹精度问题的数值模拟,从理论上分析了凸模虚拟速度和板料虚拟密度对薄板变形能的影响。