According to the rim of dual mass flywheel (DMFW) drive plate is 3~5 times thicker than the original thin plate

such formation of multi-steps spinning thickening forming process was investigated based on the SIMUFACT software. According to the analysis of spinning thickening deformation

the mould and the finite element model of spinning thickening forming were established. Taking the 1st step spinning thickening forming as an example

the stress field distribution and the deformation of the sheet metal during the forming process were analyzed. Meanwhile

4 measuring points on the surface of the plate were used to analyze the metal flowing in the 1st step spinning thickening forming process

and such forming rules of the steps ranging from 2 to 5 were summarized. Taking the roller feed speed

friction factor and rotation rate as independent variables

Three factors and three levels orthogonal experiments were carried out to obtain the maximum forming load and thickening rate data. The grey system theory was used to optimize the process parameters of the spinning thickening forming of DMFW drive plate

Such experiments were conducting on the CDC-4S80 spinning machine. The results show that the radial force is the largest

the tangential force is the second

and the axial force is the smallest

in the process of spinning thickening forming

; The smaller friction and the roller feed rate can improve the quality of forming parts. The rim of the plate was thickened from 3 mm to 10.5 mm by physical test

which verifies the feasibility of the forming process and the grey system theory.