Common Die Casting Mold Materials
The materials commonly used for die-casting molds mainly include tool steel, alloy steel, and casting steel. Each of these materials has its unique performance characteristics and is suitable for different production needs.
Tool Steel
Features: Possesses high hardness, strength, and wear resistance.
Applicable Scenarios: Suitable for products with large production quantities.
Alloy steel
Features: Possesses high heat resistance and fatigue resistance, exhibiting excellent stability in high-temperature environments.
Applicable Scenarios: Suitable for molds that need to operate in high-temperature environments.
Cast steel
Features: Possesses high toughness and impact resistance.
Applicable Scenarios: Suitable for producing larger parts.
Factors affecting material selection
Choosing the appropriate die-casting mold material requires comprehensive consideration of multiple factors to ensure the quality and service life of the mold.
Abrasion resistance
The friction between the mold and metal materials can cause wear, affecting the service life of the mold. Choosing materials with good wear resistance can extend the service life of the mold.
Thermal Resistance
During the casting process, metal materials are melted at high temperatures. Therefore, the mold needs to have good heat resistance to ensure its stability in a high-temperature environment.
Processing performance
The manufacturing process of the mold requires drilling, milling, cutting and other machining operations. Therefore, choosing materials with good machining performance can improve the efficiency and quality of mold making.
Specific Material Recommendations
H13 Steel
Features: High hardness, heat resistance, toughness, and wear resistance.
Applicable Scenarios: Particularly suitable for manufacturing large molds.
P20 steel
Features: Excellent hardness, toughness, and wear resistance.
Applicable Scenarios: Suitable for manufacturing compression and injection die casting moulds.
NAK80 Steel
Features: Offers excellent hardness and precision, along with high malleability.
Applicable Scenarios: Suitable for manufacturing high-precision and high-surface-quality die casting moulds.
Steel grade 8407
Features: High strength, high hardness, and good corrosion resistance.
Applicable Scenarios: Suitable for zinc alloy die casting parts with high production requirements.
Economic Cost Considerations
When selecting die casting mold materials, economic cost is also an indispensable factor to consider. It is necessary to take into account the cost of materials, machining difficulty, and production efficiency.
In summary, selecting the appropriate die-casting mold material is crucial for improving the service life and production efficiency of the mold. It is recommended to consider factors such as the material’s physical and chemical properties, mechanical performance, wear resistance, and economic cost based on specific production needs and budget constraints, to choose the most suitable material.