During the stamping process, the material undergoes uneven deformation or cracks appear, which seriously affects the quality and performance of the stamped parts.

Defects such as scratches, abrasions, indentations, and burrs appear on the surface of the stamped parts, affecting the appearance quality and subsequent processing.

The dimensions of the stamped parts deviate from the designed dimensions and exceed the allowable tolerance range.

After the stamping parts are demoulded, due to the elastic recovery of the material, their shape is inconsistent with the shape of the mold, resulting in a springback phenomenon.