Aluminium Sand Casting
What is Aluminium Sand Casting?
Aluminium sand casting is one of the most flexible and widely used techniques among metal casting methods. This method enables the production of lightweight and durable parts and is preferred in many sectors from automotive to aviation, from construction to industry.
In the sand casting process, molten aluminium is poured into pre-prepared sand moulds and shaped. After the liquid metal poured into the mould solidifies, it is removed from the mould and made ready for use by undergoing final processes. This method is ideal for producing both low cost and complex shaped parts.
The Role of Aluminium Alloys in Sand Casting
Although aluminium is very light and corrosion resistant in its pure form, it is generally used in alloy form in industrial applications due to its low mechanical strength. Aluminium alloys gain different properties by strengthening with silicon (Si), magnesium (Mg), copper (Cu) and other elements.
Prominent aluminium casting alloys:
Aluminium-Silicon (Al-Si) Alloys:
Provides excellent castability and fluidity.
Suitable for parts with complex geometry and thin section.
High wear resistance.
Aluminium-Magnesium (Al-Mg) Alloys:
Offers high strength and light weight.
Excellent corrosion resistance against corrosive environments such as sea water and moisture.
Its durability can be increased by heat treatment.
Aluminium-Copper (Al-Cu) Alloys:
It has high temperature resistance.
Widely used in aviation and automotive industry.
Suitable for machining processes.
Advantages of Aluminium Sand Casting
Lightweight and Durable: The low density of aluminium combined with its high mechanical strength makes it the ideal engineering material. Aluminium parts, which are much lighter than steel and iron castings, provide energy efficiency.
High Corrosion Resistance: Aluminium does not corrode naturally thanks to its oxide layer. It has a long service life, especially in marine, automotive and outdoor applications.
✅ Low Production Cost: Sand casting is very economical for mass production and large parts thanks to low moulding costs.
Excellent Castability: Aluminium alloys can perfectly fill even delicate details in the sand casting process, which is an advantage for engine parts, machine components and thin-walled structures.
✅ Recyclable: Aluminium cast parts are 100% recyclable and contribute to sustainable production processes.
Application Areas of Aluminium Sand Casting
🚗 Automotive: Engine blocks, cylinder heads, suspension parts, wheels
✈️ Aviation: Aircraft engine components, landing gear parts
🏗️ Construction: Decorative panels, balustrades, non-bearing structural elements
⚙️ Machinery and Industry: Pump housings, gearboxes, fittings
⛵ Marine: Boat engine components, propeller hubs, marine equipment
Aluminium sand casting is an ideal method for producing lightweight, durable and long-lasting parts. While the aluminium alloys used increase the performance and service life of the parts, the sand casting technique makes it possible to produce complex designs economically.
As Maraton Döküm, we offer the best solutions with high quality and correct alloy selection in aluminium sand casting. If you want to get more information about aluminium sand casting parts or if you want to determine the most suitable material for your project, you can contact us!
