There are many factors affecting springback, including mechanical properties of materials, wall thickness, bending radius and positive pressure during bending.

2 \ The greater the ratio of fillet radius to plate thickness, the greater the springback.

At present, manufacturers mainly avoid the springback of bending parts when designing molds. At the same time, improving some structures in design can reduce the rebound angle J, such as pressing the stiffener in the bending area, which can not only improve the stiffness of the workpiece, but also help to restrain the rebound.