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.