Causes of the coiling phenomenon of stamped parts
1. Irregular damage on the edge of the material, and materials that exceed the qualified quality standards.
2. When a foreign object falls into the stick due to the sliding of the stick, a bubble-like bulge is formed on the back of the coil.
3. Foreign objects other than the material are mixed into the steel surface or inside. When the foreign object is peeled off, the coil looks like a scar, which is terrible.
4. When foreign objects stick to the stick, the stick marks are caused. The depth of the surface caused by the foreign object produces obvious marks.
5. Scratches caused by the stick surface or foreign objects. Generally, the corners will be wrinkled or deformed due to uneven stress, which will cause damage to the corners of the coil. It is known in the processing of stamping products that the scratches and scars caused by foreign objects can be solved by simply making the foreign objects disappear.









