Few common processes used to shape aluminium are extrusion, fording, rolling and casting. Casting is a versatile forming process through which you can yield the greatest variety of parts. Most of the manufactured goods have metal cast products. If you are looking for a high-strength casting process, this is the right time to approach an aluminium casting manufacturer. They use various aluminium casting methods to make complex shapes where other manufacturing methods won’t be easy or economical. You can’t use the same type of casting technique for all metals. You can choose the right aluminium casting method if you can compare all the methods.

What Is Permanent Mould Casting?

The casting method is generally used for metals with a high melting point to create a reusable mould. Steel or gray iron is used to make moulds for aluminium castings. Casting experts connect the two halves of the mould before pre-heating them. They use a ladle to pour molten metal into the mould. They allocate sufficient time for the metal to solidify before removing it from the casting. If you fail to remove the casting once it solidifies, defects might form in the mould.

Few Common Benefits Of Permanent Mould Casting

• You can compensate for the initial tooling costs as the mould is reusable.
• You can achieve high dimensional accuracy with an accurately machined mould.
• You need little preparation between castings as repeatability is high.

What Is Greensand Casting?

It is a common sand casting technique using clay-bonded and moist sand to form moulds. A mould cavity is created by packing sand around a pattern. The cavity is placed in a brace after removing the pattern and paired with its other half. Casting experts pour molten metal into the cavity and break the mould after the casting solidifies. Unnecessary characteristics like risers and tabs are grinded off to finish the casting.

Few Common Benefits Of Greensand Casting

• You can use this casting technique to cast any part with different size and weight
• The material and tooling costs are very low.

What Is Die Casting?

The die casting technique is very similar to the mould casting technique. The primary difference is that molten metal is inserted into the mould at high pressure. A reusable metal mould is used instead of disposable sand-based moulds. The objective is to get metal casting with a finer surface finish and greater details. Die castings won’t be durable if there are numerous trapped pockets of air.

Few Common Benefits Of Die Casting

• You can cast parts with better surface finish and greater detail
• Dies machined using high-grade tool steel are more durable than other moulds.

To know more about the different aluminium casting techniques, get in touch with the metal casting experts at NAP.