Consider the problem that the distance between the hole and the bending edge of sheet metal rivet screw or rivet nut is too small: during bending, there are bending deformation and tensile deformation at the same time. Holes and notches are too small from the bending edge, which will cause tensile deformation of holes and notches. Generally, there will be no bending deformation when the thickness away from the bending edge is 4.5 times of the material thickness.
The above is the problem that sheet metal bending needs to be considered in sheet metal design. Sheet metal design needs to fully consider the bending process and understand the bending process. The design is to be processed into products. The limitations of the sheet metal bending process cannot be ignored.
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