Pressure die casting is a quick, reliable and cost-effective manufacturing process for production of high volume, metal components that are net-shaped have tight tolerances. Basically, the pressure die casting process consists of injecting under high pressure a molten metal alloy into a steel mold (or tool). This gets solidified rapidly (from milliseconds to a few seconds) to form a net shaped component. It is then automatically extracted.
Advantages of Pressure Die Casting :
Types of Pressure Die Casting:
|High Pressure Die Casting||Low Pressure Die Casting|
Depending upon the pressure used, there are two types of pressure die casting namely High Pressure Die Casting and Low Pressure Die Casting. While high pressure die casting has wider application encompassing nearly 50% of all light alloy casting production. Currently low pressure die casting accounts for about 20% of the total production but its use is increasing. High pressure castings are must for castings requiring tight tolerance and detailed geometry. As the extra pressure is able to push the metal into more detailed features in the mold. Low pressure die casting is commonly used for larger and non-critical parts.
However, the machine and its dies are very costly, and for this reason pressure die casting is viable only for high-volume production.
High Pressure Die Casting Process
Hot Chamber Process
Cold Chamber Process
Low Pressure Die Casting Process
Application of Pressure Die Casting:
Automotive parts like wheels, blocks, cylinder heads, manifolds etc.
Electric motor housings.
Kitchen ware such as pressure cooker.
Cabinets for the electronics industry.
General hardware appliances, pump parts, plumbing parts.