工艺相图在汽车内板件冲压工艺设计中的应用

针对汽车内板件的成形特点,运用Dynaform软件和正交设计模拟不同工艺参数下的成形过程,采用BP(back propagation)神经网络建立工艺参数与成形缺陷之间的网络关系,从而确定合理的工艺参数范围.实验结果表明,工艺相图能够真实地反映板料冲压成形的过程,并对实际的生产具有很好的指导作用.

Application of Process Phase Diagrams to Design in Stamping Processes of Auto Inner Panels

According to the forming characteristic of the auto inner panels, Dynaform software and orthogonal method were applied to simulating the forming process with different process parameters. BP neural network was used to establish a network relationship between process parameters and forming defects. Finally, the proper parameter ranges were obtained. The experimental results indicate that process phase diagram can reflect the process of sheet metal stamping accurately, which is efficient to the actual production.