Durable Tungsten Carbide Wire Drawing Dies

2023-01-17 Share

Durable Tungsten Carbide Wire Drawing Dies


Tungsten carbide dies were made of tungsten carbide powder and cobalt powder, having dozen times even several ten times longer working time than steel die with advantages of high hardness, high strength, corrosion resistance, high-temperature resistance, and low expansion coefficient. In recent years, high-precision dies are required even if for a small amount of production. Carbide dies with high durability will be the best choice. This article will talk about the following features of tungsten carbide wire dies, which ensure the high durability of carbide wire drawing dies:

1. Strong power resistance;

2. Excellent wear resistance;

3. Sufficient thermal stability;

4. Excellent processability;

1. Strong power resistance

Tungsten carbide dies should be given very large bending stress, impact, and other loads during the extrusion process. Therefore, the material selected will have high power resistance after heat treatment. Carbide dies material should have outstanding hardenability to ensure that the mold can be hardened and uniform.

2. Excellent wear resistance

Dies should have high wear resistance to ensure normal service life and produce large quantities of extruded parts. In general, the hardness of steel is proportional to wear resistance under certain conditions. Therefore, mold materials must have sufficient hardenability. In addition to the hardness, the decisive factors are the thickness, composition, amount of excess for the matrix after heat treatment, and the amount, size, type, dispersion, and red hardness of carbide. The tungsten carbide has a content of more than 80% of WC, the wear resistance of which is several times higher than steel. So to get a long service life for the drawing mold, carbide is mostly adopted for the materials.

3. Sufficient thermal stability

For continuous production, the temperature of the mold sometimes will reach 200 ° C, which will reduce the strength and hardness, so the mold material should have outstanding thermal stability. Carbide drawing dies have sufficient thermal stability for high-temperature resistance.

4. Excellent processability

Cold extrusion mold has a long manufacturing time with high accuracy requirements. Usually, it is necessary to cast, cut, heat treatment, grind, or do other fine finishing. So only the materials that have good processability can meet the production needs. The excellent process of carbide molds will be the best choice.

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