Solutions for Problems in the Sheet Metal Processing Bending Technology

Sheet metal processing is just a series of processes such as bending, riveting, and welding of metal materials. The following is for the problems and solutions encountered in the sheet bending process.

Problem 1: The bending edge of sheet metal processing is not straight and the size is unstable.

Causes:

1. The design process does not arrange crimping or pre-bending

2. Insufficient material pressure

3. The rounded corners of the convex and concave molds wear asymmetrically or the bending force is uneven

4. The height dimension is too small.

Solution:

1. Set crimping or pre-bending process

2. Increase the pressing force

3. Uniform gap between convex and concave molds, rounded corners and polished

4. The height size cannot be less than the minimum limit size

Problem 2: The outer surface of the sheet metal press parts is scratched after bending

Causes:

1. The surface of the raw material is not smooth

2. The bending radius of the punch is too small

3. The bending gap is too small

Solution:

1. Improve the finish of convex and concave molds

2. Increase the bending radius of the punch

3. Adjust the bending gap