Research on Blade Bending Springback Control Based on Profile Compensation
In order to study the springback deformation of high strength steel plate after bending forming,the blade of a mixer was studied by numerical simulation and experiment using the full surface iteration compensation method.Firstly,CAE software was used to numerically simulate the blade bending forming and measure the springback of the key points of its surface.Then the actual springback of the key points of the corresponding profile surface was measured by bending experiment.Then the reliability of the numerical simulation was verified by comparing the simulated springback with the experimental springback.Finally,according to the size of the simulated springback,the blade die surface was iteratively compensated twice,and the springback after bending was controlled within the allowable tolerance.The results show that the simulation results are basically consistent with the test results at the key points of the profile,and the iterative compensation method can effectively control the last springback of the workpiece.