1. Wear resistance.

When the blank in the processing cavity of stamping parts is plastic, the surface of cavity is active and sliding, which leads to sharp conflict between caries and blank surface, and then mold becomes invalid in the case of wear and tear. Therefore, the wear resistance of data is one of the most basic and important functions of die.

Hardness is the main factor affecting the wear resistance. Generally speaking, the higher the hardness of mold parts, the smaller the wear degree, the better the wear degree. In addition, the wear resistance is also related to the variety, quantity, shape, size and dispersion of carbide.

2. Strong patience

Most of the dead working conditions of stamping parts are very bad, some of them usually bear huge impact load, and then lead to brittle cracking. In order to prevent the die parts from brittleness during operation, the die should have high strength and resistance.

The tolerance of the mold depends on the carbon content, granularity and data placement.

3. The function of fatigue and cracking

In the process of stamping, the long-term effect of periodic pressure usually leads to fatigue cracking. The method has small energy repeated impact fatigue crack, tensile fatigue crack, contact fatigue crack and winding fatigue crack. The fatigue differentiation function of mould depends on its strength, tolerance, hardness and content of its contents.

4. High temperature effect

When the temperature of stamping parts is very high, the hardness and strength will decrease, resulting in the wear of the mold or plastic deformation. Therefore, the mold data should have high temperature stability to ensure that the mold has high hardness and strength at operating temperature.

5. Cold and heat exhaustion function.

Under the condition of processing and cooling of stamping parts, there are some molds in the process of operation, which make the influence of the external tension, pressure and stress of the cavity, cause the appearance and loss of cracks, add conflict, prevent plastic deformation, reduce the measurement accuracy, and then lead to die failure. Cold and heat failure is one of the main methods of the failure of the hot die, which should have higher function of heat exhaustion and fatigue.

6. Corrosion resistance of

In stamping processing, there are some molds, such as plastic molds. Because the components of plastic are chlorine and fluorine, the thermal differentiation after separation, strong corrosive gases, such as the presentation of high-frequency corrosive mold cavity, adding surface roughness, adding wear.