Causes and solutions of bad hardware shrapnel bending parts

Causes and solutions of bad hardware shrapnel bending parts

1. The curved end face is bulging, and the outer surface of the curved fillet belt is warped at both ends

Analyze the reason: when bending, the outer surface of the lotus picking is stretched in the circumferential direction, the material on the inner surface is compressed, and the two ends of the lotus picking direction are squeezed. If the round corner of the cavity is small, warping will occur.

Solution: 1. At the bending stage, there should be sufficient correction pressure. 2. Make the die fillet radius and the outer fillet of the bending part to match 3. Increase the follow-up shaping process

2. Deformation of the hole after bending

Analyze the reason: when the hole is close to the bending line, the pressure on the outside of the bending key makes the side of the hole close to the bending line extend outward

Solution: 1. The hole edge distance of the bent part should not be less than the limit distance 2. Correct the bending process, consider bending first and then punching

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