What are the commonly used materials for die casting?

Die casting is a metal casting process that uses high pressure to quickly inject molten metal into a precision mold to form metal parts with complex geometric shapes and high precision. The following are the materials commonly used for die casting:

Aluminum alloy: Aluminum alloy is widely used in industry due to its low density, high strength, good plasticity, excellent electrical conductivity, thermal conductivity and corrosion resistance, especially in the lightweight process of automobiles, aircraft, ships, electronic instruments and other fields. Commonly used aluminum alloy die casting materials include Al-Si-Cu series, such as ADC12 (A383), ADC10 (A380), etc.

Zinc alloy: Zinc alloy is widely used in mechanical parts, hardware, locks, toys and other industries due to its excellent casting properties, mechanical properties and toughness. Zinc alloy also has good electrical and thermal conductivity, vibration reduction characteristics and electromagnetic shielding properties, so its application in electronics, telecommunications and home appliances is also increasing. Zinc alloy has a low melting point and is easy to die-cast, but its corrosion resistance is relatively poor.

Magnesium alloy: Magnesium alloy is favored because of its low density, high specific strength, good heat dissipation, good shock absorption, good resistance to organic and alkali corrosion. It is widely used in mobile phones, communication equipment, auto parts, medical equipment, etc. Commonly used magnesium alloys are AZ91D, AM60B, AM50A, AS41B, etc.

Copper alloy: Copper alloy is less used in die casting, but because of its high hardness, strong corrosion resistance and excellent mechanical properties, it is often used in parts requiring high wear resistance and high strength.

Lead and tin alloy: It has high density and very high processing accuracy and can be used for special corrosion-resistant parts. For public health reasons, this alloy cannot be used in the food industry and storage equipment. Lead-tin-antimony alloy (sometimes containing a small amount of copper) can be used to make handmade lead in screen printing and hot stamping.

The choice of die-casting materials depends on factors such as the application needs, performance requirements and cost-effectiveness of the product. Each material has its own unique characteristics and scope of application, so it needs to be carefully considered during the design and production process.

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