Aluminium Casting

Aluminium Casting:

Aluminium Casting is a versatile process used to shape molten aluminium into precise and functional components. Moreover, at CSG Extrusion LLC, we specialize in high-quality aluminium casting for various industries including automotive, aerospace, construction, and more.

Stacks of aluminum ingots labeled with '16' in an industrial setting, with a worker in the background, ready for aluminium casting.
Various aluminum mechanical parts arranged on a blue surface, showcasing a mix of intricate designs and textures, highlighting the precision of aluminium casting.

Common Aluminum Casting Methods

1. Die Casting

2. Sand Casting

3. Investment Casting (Lost Wax)

4. Permanent Mold Casting

5. Centrifugal Casting

6. Gravity Die Casting

7. Vacuum Casting

Factors to Consider in Aluminum Casting

  • 1. Part Complexity
    • Firstly, Investment or die casting handles complex, detailed shapes exceptionally well.

    • On the other hand, sand or gravity casting is more suitable for basic, straightforward designs.

    2. Production Volume
    • When it comes to scale, for large production runs, die casting proves to be the most efficient method in aluminium casting.

    • Meanwhile, sand or investment casting offers flexibility for smaller batches.

    3. Accuracy & Surface Finish
    • Best finish: Die and investment casting

    • General use: Sand casting

    4. Size of Components
    • Large parts: Sand or permanent mold casting

    • Small precision parts: Die or investment casting

    5. Mechanical Properties
    • High strength: Vacuum or centrifugal casting

    • Standard performance: Most casting methods

    6. Budget
    • On a tight budget? Go for sand casting.

    • However, if you’re aiming for premium performance at scale, die casting is the way to go.

Molten metal being poured from a crucible into a mold, surrounded by flames, showcasing a dramatic metalworking process in aluminium casting.
A metal foundry with an open furnace glowing orange; a worker stands nearby, surrounded by stacked metal bars on the platform, highlighting the aluminium casting environment.

Applications of Aluminum Casting

  • Automotive: Engine blocks, gear housings (Die Casting).

  • Aerospace: Turbine blades, structural parts (Investment, Vacuum Casting).

  • Construction: Brackets, beams (Sand Casting).

  • Electronics: Housings, heat sinks (Die Casting).

  • Machinery: Suitable for high-load parts made with Centrifugal or Permanent Mold Casting.

Advanced Casting Techniques

Low-Pressure Die Casting

  • Controlled metal flow, minimal defects

  • Ideal for wheels and structural parts

Squeeze Casting

  • Combines casting & forging

  • Superior mechanical properties

Semi-Solid Casting

  • Reduced porosity, excellent finish

  • Aerospace & automotive use

Tilt Pour Casting

  • Minimizes turbulence and inclusions

  • Perfect for thin-walled component production

A molten metal pour from a furnace into two large containers, emitting bright sparks and intense orange glow in a foundry, illustrating the aluminium casting process.