Material requirements for working parts of stamping die

When working, stamping dies have to withstand loads such as impact, vibration, friction, high pressure, tension, bending and torsion, and even work at higher temperatures (such as cold extrusion). The working conditions are complex and are prone to wear, fatigue, fracture, and deformation. And other phenomena. Therefore, the requirements for the materials of mold working parts are higher than that of ordinary parts.

Due to the different working conditions of various stamping dies, the requirements for the materials of the working parts of the die are also different.

1. Requirements for the material of the blanking die

The material used for the working parts of the thin plate blanking die requires high wear resistance and hardness, and the thick plate blanking die requires high wear resistance and compression yield point, in order to prevent the die from breaking or collapsing. The blade should also have high fracture resistance, high bending strength and toughness.

2. Requirements for drawing die materials

It is required that the material of the mold working parts have good anti-adhesion (anti-seizure), high wear resistance and hardness, certain strength and toughness, and good cutting performance, and the deformation during heat treatment should be small.

3. Requirements for cold extrusion die materials

The working parts of the mold are required to have high strength, hardness, and high wear resistance. In order to avoid impact breaking, a certain degree of toughness is also required. Due to the large temperature rise during extrusion, it should also have a certain degree of thermal fatigue resistance and thermal hardness.