One of the most common manufacturing processes you can rely on to cast metal products is die casting. It involves the introduction of molten metal into certain mould cavities at high pressure. So, if you need brass castings, steel castings or bronze castings, this technique will help you produce different metallic parts in bulk and at a fast rate. The pieces will only need minimal post-production machining, and they'll be ready for use.

Die casting offers a wide range of benefits such as high-quality parts, uniformity in the produced parts, the ability to create products of versatile designs (geometry, size or texture) and the more straightforward inclusion of features to the design. Here are some main die-casting techniques for you to consider.

Hot chamber

This die casting procedure, also known as gooseneck casting, is one of the popular techniques you can consider. It's often used for both zinc and magnesium casting production or other metals that have high fluidity and/or lower melting points. This procedure begins with the retraction of the piston to let molten metal plunge through the gooseneck into the die cavity.

Some outstanding benefits of hot chamber casting include reduced porosity, fast production, fewer design deficiencies (which minimises waste production) and longer lives for the die casts.

Cold chamber

If you would like to cast metals with a high melting point, consider the cold chamber technique. The metal gets liquefied at high temperatures in the furnace and transferred to a cold chamber to inject it into a die. To force more molten metal in the die cavity, extra material is used. So even if the molten metal shrinks, it will be compensated for, making it easier to get the right casting.

This method reduces corrosion and is ideal for metals that are too corrosive. If you want to make castings with aluminium or its alloys, go for cold chamber die casting.

Squeeze

Squeeze die casting is a variation that was designed as a reliable method for casting alloys and low-fluidity metals. Here, the melted metallic substance is filled in an open die and then squeezed. This forces it to the recessed section of the moulding. The procedure is mostly used to reinforce fibre, so if the fluidity of metal is low, consider this technique.

Before you assign a die casting project, consider selecting the most suitable method for your needs. Your service provider should explain the techniques in detail as well if you need clarification.