Method for preventing bach after turnup

Abstract

A method for preventing the flanged edge of a part from resiling features that when a part is flanged, one or more ribs with the direction same as the flanging are simultaneously formed.

Description

technical field [0001] The invention relates to a method for preventing parts from springing back after flanging. Background technique [0002] Flanging parts is a common method in the stamping process. In the flanging process, since the part material is generally a metal material, in addition to the plastic deformation, the flanging will also be accompanied by a certain elastic deformation. Therefore, the parts after flanging usually have a springback phenomenon due to the elastic deformation. This will cause the shape of the part after flanging to fail to meet the design requirements. [0003] For example, when turning the part shown in Figure 1 into the part shown in Figure 2, the flanging die (flanging die 1 and flanging punch 2) shown in Figure 3 are usually used to interact, Flanging the part yields the part shown in Figure 2. However, as shown in FIG. 4 , in the actual flanging process, the part shape shown in FIG. 2 cannot be obtained generally due to the springba...

AI Technical Summary

Problems solved by technology

However, as shown in Figure 4, in the actual flanging process, due to the springback phenomenon of the part, it is generally impossible to obtain the shape of the part shown in Figure 2, but the actual shape of the part as shown in Figure 4.

Images