关上的环控制模型为补偿 springback 并且提高工作片精确被建立。A coupled 关上了环算法,一个有限元素方法被开发模仿并且改正增长的表形成的 springback。一个三维的有限元素模型在形成过程的增长的表为 springback 的模拟被建立。为基于与快 Fourier 变换相结合的小浪变换形成的增长的表的轨道侧面的关上的环算法被构造。与球形的表面处理浅 dishing 的工具路径的侧面根据侧面修正算法被设计。结果证明算法能预言处理轨道的理想的侧面,和增长的表形成的 springback 错误有效地被消除。它有好集中效率,和罐头改进细工品维的精确性极大地。
The closed loop control model was built up for compensating the springback and enhancing the work piece precision. A coupled closed loop algorithm and a finite element method were developed to simulate and correct the springback of incremental sheet forming. A three-dimensional finite element model was established for simulation of springback in incremental sheet forming process. The closed loop algorithm of trajectory profile for the incremental sheet forming based on the wavelet transform combined with fast Fourier transform was constructed. The profile of processing tool path of shallow dishing with spherical surface was designed on the basis of the profile correction algorithm. The result shows that the algorithm can predict an ideal profile of processing track, and the springback error of incremental sheet forming is eliminated effectively. It has good convergence efficiency, and can improve the workpiece dimensional accuracy greatly.