Sheet Metal Parts
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Problem one: the bending edge is not straight and the size is unstable

The reason:

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

2. The material pressure is not enough

3. Convex and concave die fillet wear asymmetry or uneven bending force

4. The height size is too small



1. Design pressing line or pre-bending process

2. Increase the pressure

3. convex and concave die clearance uniform, rounded corner polishing

4. The height size can not be less than the small limit size

Problem two: the workpiece after bending external surface abrasion


The reason:

1. The surface of the raw material is not smooth

2. Punch bending radius is too small

3. The bending gap is too small


1. Improve the finish of the convex and concave die

2. Increase the bending radius of the punch

3. Adjust the bending clearance


Problem three: bending Angle crack

The reason:

1. Bending radius is too small

2. The material grain is parallel to the bending line

3. The burr of the blank faces outwards

4. Poor metal plasticity



1. Increase the bending radius of the punch

2. Change the blanking layout

3. Burr is rounded in the workpiece

4. Annealing or soft materials

Problem four: hole deformation caused by bending 

Finally, if there is a need to customize sheet metal businesses can consult our szBERGEK

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How We Do It Meet And Define Global
The first thing we do is meeting with our clients and talk through their goals on a future project.
During this meeting, feel free to communicate your ideas and ask lots of questions.
    They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
    They are now widely exporting to 200 countries.

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