There are several reasons for the warpage of the parts during stamping processing:

1. Problems of the material itself: If the physical properties of the raw material such as hardness and toughness are not uniform, or if there is internal stress, then warpage will easily occur during the stamping process.

2. Irrational mold design: The design of the mold directly affects the shape and dimensional accuracy of the stamped part. If the mold design is not reasonable, such as uneven distribution of stamping pressure, it may lead to warpage in the stamping process.

3. Improper setting of stamping process parameters: The setting of process parameters such as stamping speed, pressure, holding time, etc. will also affect the quality of the parts. If these parameters are not set properly, it may also lead to warpage in the stamping process. 4.

4. Poor equipment: If the precision of the stamping equipment is not enough, or the equipment has wear and tear, aging and other problems, may also affect the quality of the parts, resulting in the occurrence of warping.

5. Inadequate operator skills: The skill level and experience of the operator can also affect the quality of the stamping process. If the operator is not skillful in the operation of the equipment or does not have a deep enough understanding of the stamping process, it may also lead to warpage of the parts in the stamping process.

In general, there are various reasons for the warping of parts during stamping, which need to be analyzed and solved from various aspects.