What are the advantages of pure aluminum die casting?

Customized Mold Manufacturer

Table of Contents

Compared to traditional die-casting alloys (such as ADC12/A380), pure aluminum die-casting offers a range of unique advantages:

  1. Excellent Surface Treatment Performance
    This is the most prominent advantage. Pure aluminum die-castings are an ideal substrate for anodizing, especially clear or color anodizing.
  2. Superior Corrosion Resistance
    Pure aluminum rapidly forms a dense natural oxide film on its surface, providing far better corrosion resistance than traditional die-casting alloys (like ADC12) which contain high levels of copper and iron. This makes it perform better in harsh environments or applications requiring long-term stability.
  3. High Electrical Conductivity
    The electrical conductivity of pure aluminum is second only to copper and is much higher than that of commonly used die-casting aluminum alloys (e.g., the conductivity of A380 is only about 28% of pure aluminum’s). This is crucial for components requiring good thermal/electrical conductivity, such as heat sinks, electrical component housings, and conductors.
  4. High Thermal Conductivity
    Similar to electrical conductivity, pure aluminum’s thermal conductivity is outstanding, making it an ideal material for manufacturing efficient heat sinks, LED lamp housings, and automotive engine components.
  5. Good Plastic Workability and High Reflectivity
    • Ductility: Pure aluminum is soft and has far better ductility than brittle die-casting alloys, allowing for subsequent bending, riveting, and other processing without being prone to cracking.
    • High Reflectivity: After polishing, the surface of pure aluminum has very high reflectivity towards light and heat, making it suitable for products like lamp reflectors.

The advantages of pure aluminum die-casting are primarily reflected in its surface treatment, electrical/thermal conductivity, and corrosion resistance. However, its disadvantages lie in its mechanical properties, processing difficulty, and cost.

Crafting the Impossible: Our Custom Pure Aluminum Die-Casting Solution

Many innovative products hit a wall with standard materials. When your design demands both a flawless, anodized finish and specific mechanical performance, conventional die-casting alloys like ADC12 often fall short. They can introduce impurities that lead to uneven coloring and compromise strength.

That’s where we change the game.

We don’t just source aluminum; we engineer it. Through our proprietary foundry process and custom aluminum recipes, we start from raw materials to produce high-purity aluminum ingots tailored for die-casting.

This control at the molecular level allows us to offer a true custom pure aluminum die-casting service. We provide a solution for projects where off-the-shelf materials and standard processes cannot achieve the required surface quality and mechanical properties.

Are you designing a product that demands perfection in both form and function? Let’s talk about making it a reality.