Precision die material selection requirements and standards

Precision stamping mold material selection standard: before precision die processing, it is particularly important to select the right material. According to the customer’s service life and performance requirements, choose the right steel and estimate the working strength and stress capability of the precision mold. In the small series below, the principle of material selection for precision stamping molds is introduced.
1, wear resistance
When the blank is plasticized in the mold cavity, it flows and slides along the surface of the mold cavity, causing serious friction between the mold cavity surface and the blank, which causes the mold to fail due to wear. The wear resistance of the material is one of the most basic and important characteristics of the mold.
Hardness is a major factor affecting wear resistance. In general, the higher the hardness of mold parts, the smaller the amount of wear, the better wear resistance. In addition, wear resistance is related to the type, quantity, shape, size and distribution of carbides in the material.
2, strong toughness
Mold working conditions are mostly very poor, some often bear a large impact load, resulting in brittle break, thus preventing the mold precision stamping parts in the course of work brittle and broken, so that the mold has a higher strength and toughness. The toughness of the mold depends mainly on the carbon content, grain size and microstructure.
3, fatigue fracture performance
In the working process of the mold, under the long-term action of circulating stress, it often leads to fatigue fracture. It takes the form of small energy multiple shock fatigue fracture, stretch fatigue fracture, contact fatigue fracture and bending fatigue fracture.
The above is FudongYi mold processing summary of the precision stamping mold selection requirements principle, I hope to help you!