Plastic mold processing Meet the requirements of working conditions

1. Wear resistance:

Blank in Plastic mold When plastic deformation occurs in the processing cavity, it flows and slides along the cavity surface, causing severe friction between the cavity surface and the blank, which leads to the failure of plastic mold processing due to wear. Therefore, the abrasion resistance of materials is one of the basic and important properties of plastic mold processing.

Hardness is also the main factor affecting the wear resistance. In general, the higher the hardness of plastic mold processing parts, the smaller the wear, and the better the wear resistance. In addition, wear resistance is also related to the type, quantity, shape, size and distribution of carbides in materials.

2. Strength and toughness: most of the working conditions for machining are very bad, and some often bear large impact loads, which leads to brittle fracture. In order to prevent the plastic mold processing parts from suddenly breaking when working, the plastic mold processing should have high strength and toughness.

The toughness of plastic mold processing mainly depends on the carbon content, grain size and microstructure of the material.

3. Fatigue fracture performance:

In the process of plastic mold processing, fatigue fracture often occurs under the long-term effect of cyclic stress. Its forms include low energy multiple impact fatigue fracture, tensile fatigue fracture, contact fatigue fracture and bending fatigue fracture.

The fatigue fracture performance of die machining mainly depends on its strength, toughness, hardness, and the content of inclusions in the material.