What factors can cause the rebound of stamping molds?

2025-12-26 17:34:01

Rebound of stamping die refers to the phenomenon of elastic deformation of metal material caused by the impact force during the stamping process, resulting in a larger size of the finished product. The main factors causing springback of stamping dies include:

Elastic deformation of materials: Metal materials undergo elastic deformation when subjected to impact pressure, and a portion of energy is stored in the material, resulting in larger finished product dimensions.

Unreasonable design of stamping molds: Unreasonable design parameters of molds, such as improper mold structure design, improper selection of mold materials, etc., can lead to mold rebound.

Unreasonable stamping process parameters: Improper selection of process parameters such as punch speed, punch pressure, and punch position during the stamping process can also lead to springback of the stamping die.

The hardness and strength of the material: The higher the hardness and strength of the material, the more severe the rebound phenomenon.

Service life of stamping die: If the service life of stamping die is too long, the surface wear of the die will be severe, which can also cause the stamping die to rebound.

In order to reduce the springback of stamping molds, it is necessary to design the mold structure and process parameters reasonably, select suitable materials, and replace severely worn molds in a timely manner.