Functioning of Aluminium Die Casting Machines

Die-casting is a process that will be executed by pushing the metal in molten form under high pressure into the cavity of moulds. Two steel dies are used to create those cavities that are to be machined to get the perfect shape. Many die-castings are made up of non-ferrous metals like zinc, copper, aluminium, magnesium, lead, pewter and tin-based alloys.

Usually the preferred metals to be used in die casting are aluminium that has many favourable features such as lightweight, good dimensional stability for typical shapes and thin walls. It also exhibits high corrosion resistance, good mechanical properties, high thermal and electrical conductivity retaining strength at high temperatures.

The Aluminium Die casting is categorized as Cold chamber die casting that produces permanent moulds which are formed in the machine from two steel blocks with a great clamping force essential for holding two halves of the mould together. It refers to separate metal melting furnace.

In this process the molten aluminium is injected in the die-casting machine with considerable pressure into a steel mold to form moulds. However, the process in itself is so up to the mark that it produces excellent dimensional accuracy and smooth surfaces which requires no machining except the removal of flash around the edge with drilling and tapping holes. Also this process is fast and inexpensive relative to other casting processes.

Amongst all casting alloys aluminium is used in 80-90% of the high pressure die casting machine. Though steel can prove to be a good substitute for aluminium high-pressure die casting as it increases strength and reduces part weight. The high pressure die casting parts can be produced and shipped within two weeks of the receipt of the purchase order. If the right die casting tooling and proper high pressure die casting part design are used then the machine will have the ability to produce thousands of high pressure die casting parts in a single day.

Producing less number of Aluminium Die Casting parts can prove to be expensive than more number of aluminium die casting parts. Some of the high Pressure die casting tooling is generally made up of hardened steel that can bear high temperatures and extreme pressures. The tooling can range from simple inexpensive inserts to complete high pressure die casting dies but it is limited to only one part of the machine.

After producing a tool, the cost of making the parts of these machines will be very little. It is the dimensional accuracy of the moulds produced that makes this machine outstanding in performance.