The high pressure die casting process is a fast, precise technique of making elements made from aluminium or zinc. It’s favoured, in particular, by advanced industries which have very particular requirements over appearance, dimensional tolerances and lightweight components.
HOW DOES HIGH PRESSURE DIE CASTING WORK?
High pressure die casting provides the shortest route from molten metal to completed element, by injecting the molten metal right into a hardened metal mould and allowing it to solidify under pressure earlier than ejection.
WHAT ARE THE ADVANTAGES OF HIGH PRESSURE DIE CASTING?
If you happen to require large volumes of complex elements, high pressure die casting will deliver what you need with speed and precision.
The casting cycles for high pressure die casting are extraordinarily brief when compared to other strategies, as the molten metal solidifies in mere seconds. This assists the process in being extremely value-efficient when it involves mass production.
High pressure die casting additionally lends itself well to elements that are thin walled. Wall thicknesses produced by high pressure die casting will be as low as 1mm (depending on the scale of the component), making it far more effective than different processes when it comes to creating a precise casting that can also be extremely lightweight.
In addition, high pressure die casting creates a very smooth surface. So, if it's essential to apply an additional finish, you’ll have an excellent primer for coatings to be utilized directly in the next phase.
WHAT ARE THE DISADVANTAGES OF HIGH PRESSURE DIE CASTING?
The principle disadvantage of high pressure die casting is its porosity – however an evacuated chamber and different methods may reduce this.
As a result of presence of these pores (containing entrapped gases), elements created by high pressure die casting can’t normally be totally heat treated. This would, unfortunately, lead to the formation of surface blisters.
High pressure die casting can be known to have high start-up costs, however this isn’t strictly a disadvantage, depending on your perspective. The initial tooling value could also be higher than different methods, but the lengthy casting run that this process enables may also facilitate a low unit price alongside the aforementioned high-volume production.
If you think that high pressure die casting is the suitable process to suit your ultimate application, you’ll need to discover a reliable partner to produce those components. But why should you select us?
Firstly, it’s necessary to know that the surface space and weight of a die cast will be limited by the locking force of the machine used. We mitigate this restriction by utilizing high pressure die casting machines with locking forces of between 220 and 530 tonnes.
Higher yet, all of our machines feature computerised real-time shot control, automated ladling, die-spray, automated casting extraction and cooling - providing repeatability and productivity.
In addition, other foundries may only supply their providers for high volume orders, claiming that prolonged set-ups make the process prohibitive to small runs.
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