High Pressure Die Casting Advantages & Disadvantages

The high pressure die casting process is a fast, precise methodology of making components made from aluminium or zinc. It’s favoured, in particular, by advanced industries which have very particular necessities over appearance, dimensional tolerances and lightweight components.

High pressure die casting provides the shortest route from molten metal to completed component, by injecting the molten metal into a hardened metal mould and allowing it to solidify under pressure earlier than ejection.

When you require giant volumes of advanced components, high pressure die casting will deliver what you want with speed and precision.

The casting cycles for high pressure die casting are extraordinarily quick when compared to other methods, as the molten metal solidifies in mere seconds. This assists the process in being extraordinarily value-efficient when it involves mass production.

High pressure die casting also lends itself well to parts which might be thin walled. Wall thicknesses produced by high pressure die casting can be as little as 1mm (depending on the dimensions of the component), making it far more effective than other processes when it involves creating a exact casting that can also be extraordinarily lightweight.

In addition, high pressure die casting creates a really smooth surface. So, if it is advisable to apply an additional finish, you’ll have a fantastic primer for coatings to be applied directly in the next phase.

The main disadvantage of high pressure die casting is its porosity – but an evacuated chamber and other strategies could reduce this.

Due to the presence of these pores (containing entrapped gases), parts created by way of high pressure die casting can’t normally be fully heat treated. This would, sadly, lead to the formation of surface blisters.

High pressure die casting is also known to have high start-up prices, but this isn’t strictly a disadvantage, relying on your perspective. The initial tooling cost may be higher than different strategies, but the lengthy casting run that this process enables can also facilitate a low unit cost alongside the aforementioned high-volume production.

If you happen to think that high pressure die casting is the fitting process to suit your final application, you’ll have to find a reliable partner to produce these components. However why should you choose us?

Firstly, it’s necessary to know that the surface area and weight of a die solid can be limited by the locking force of the machine used. We mitigate this restriction through the use of high pressure die casting machines with locking forces of between 220 and 530 tonnes.

Better but, all of our machines function computerised real-time shot management, automatic ladling, die-spray, computerized casting extraction and cooling - providing repeatability and productivity.

In addition, different foundries might only supply their providers for high quantity orders, claiming that lengthy set-ups make the process prohibitive to small runs.

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