多楔带轮增厚成形有限元模拟及试验

Simulation and Experiment on Thickening Forming of Multi-wedge Belt Pulley

针对多楔轮的结构特征,结合实际生产提出成形工艺方案。利用DEFORM软件建立旋压增厚成形的三维刚塑性力学模型,基于数值模拟和正交试验获得试验数据,通过分析得出各工艺参数在增厚成形中对成形载荷的影响趋势及影响显著性顺序,并获得最佳工艺参数组合。优化结果经过CAE模拟和试验验证,增厚毛坯的成形质量得到提高,成形载荷大大降低,保护了旋轮和旋压设备。

The forming process of the multi-wedge belt pulley is proposed according to the structure.A 3D rigid-plastic FEA model of spinning thickening forming was established by the software,DEFORM.Based on the experimental data obtained through numerical simulation and orthogonal method,the influential of the processing parameters on the forming load including influential trend and the order of significance is determined in the process of thickening forming.Then,the optimization technology involving neural networks and genetic algorithms is utilized to optimize the processing parameters,and the optimum combination of processing parameters are acquired.Through CAE simulation and experimental verification,it is proved that the forming quality of thickening blank is improved and the forming load significantly decreases,thus protecting the spinning roller and spinning equipment.