Which Aluminum Casting Method Suits Your Business?

You must consider the current application, the project’s requirements as a whole, and your demands as a client. This holds for all processes, including aluminium casting techniques. Adopting aluminium casting techniques in a project has several advantages and uses. There are still a few additional options when choosing how to cast aluminium for your application.

Casting methods for Aluminium: The three processes

Die casting, compression moulding and sand casting are the three main metal casting techniques employed to cast aluminium. Every one of these metal casting methods is based on the following methodology:

• Sand casting: In this technique, a mould is made from a sand mixture with a hollow into which your part’s molten aluminium alloy will be poured. The sand mould is separated from the part once the aluminium has solidified and cooled.
• Permanent mould casting: As the name suggests, casting aluminium does not require removing the mould (as it is in sand casting). The chamber of a disposable metal mould is refilled with aluminium using gravity. The final item is ejected or removed, and the mould is split upon cooling.
• Die casting: It is quite similar to compression moulding because the melted aluminium is injected into the cavity under pressure rather than being poured and filled by gravity. The two methods are comparable aside from this functional distinction, but we’ll discuss how they differ in the output below.

Which casting method should you pick?

• Speed: When opposed to permanent mould procedures, automated casting technologies offer a high production of components quickly. Due to the pressurised injection process, die casting offers the fastest manufacturing pace.
• Strength: The strongest material is used in the completed product of permanent mould casting. Although comparable to die casting, permanent mould casting results in stronger parts because of the nature of the technique.
• High numbers: A continuous mould is a close second, while sand casting provides the best compromise between bigger volumes and tooling costs. However, die casting might be preferable for volumes considerably over 100,000.
• Sand casting: It is the preferred technique for making prototypes and small batches since it has a cheap tooling investment cost.
• Surface finish: Out of all the casting methods, continuous mould casting and die casting provide the best surface finish.

NAP Engineering is one of the best aluminium casting manufacturers. We are very well-known and reliable when it comes to casting. To avail of our services, get in touch with us.