The material selection of construction machinery forging die is very important, which directly affects the service life, forming efficiency and forming quality of the die. The following is the selection and characteristic analysis of common construction machinery forging die materials.
- High carbon alloy tool steel:
High carbon alloy tool steel is one of the most commonly used forging die materials for construction machinery. It has high hardness, wear resistance and heat resistance. At the same time, high-carbon alloy tool steel has good toughness and machinability, and can adapt to complex mold processing requirements. Common high-carbon alloy tool steels include Cr12MoV at home and D2 abroad. These materials are suitable for forging molds at low temperature and can be used to produce construction machinery parts.
- Hot working die steel:
Hot working die steel is mainly used for forging dies under high temperature conditions. They have excellent high temperature strength, heat resistance and wear resistance. Common hot working die steels include H13 and 5CrNiMo. These materials have good heat resistance and are suitable for construction machinery forgings with high temperature forging and die insulation requirements.
- Wear-resistant alloy steel:
For some construction machinery forgings that require special wear resistance, wear-resistant alloy steel can be selected as a material. Wear-resistant alloy steel has high hardness, anti-wear and anti-impact properties, which can effectively extend the service life of the mold. Common wear-resistant alloy steels include domestic Cr12 series and foreign D3 and so on. These materials are suitable for construction machinery forging dies that require high wear resistance.
- Powder metallurgy materials:
In recent years, powder metallurgy technology has been used more and more widely in construction machinery forging die materials. By powder metallurgy process, mold materials with high hardness, high wear resistance and corrosion resistance can be prepared. At the same time, the powder metallurgy material also has a uniform organizational structure and low internal stress, which can improve the service life of the mold. However, the price of powder metallurgy materials is higher, and it is suitable for construction machinery forging dies with special requirements.
In short, the material selection of construction machinery forging die should be comprehensively considered according to factors such as forging process, use environment and die requirements. When selecting the right material, it is necessary to comprehensively consider the hardness, toughness, wear resistance, heat resistance and processing properties of the material to meet the production needs of construction machinery forging die.
