High pressure die casting (HPDC) is an efficient manufacturing process that may create a variety of product forms. It involves forcing molten metal into a sealed mold cavity under high pressure. It is retained in place until the metal hardens by a powerful compressive force (real die installed in hydraulics machine).
The Process Of High Pressure Die Casting
Using High-pressure die casting enables making of engines, aerospace components, and many more.
The injection unit that fills the mold can either be a hot chamber or a cold chamber. In hot chamber die casting, the metal is kept within the die- casting machine. Then drawn into the chamber and pressed into the mold by the injection piston. The molten metal is in constant touch with these components of the machine.
In the cold chamber method, after melting the metal in a separate furnace. Then it is then transported to a holding furnace and poured into a shot sleeve before being injected into the mould.
Although there are different ways to do it, majority of the high-pressure die casting involves the following process:
1. Mold Preparation
The liquid metal, filling the mold, hardens and sets as it cools. During this step, lubrication to the interior surfaces of the mold is necessary. The lubricant maintains an equal temperature. It also provides a film between the molten metal, and the mold, making removal of the casting easier.
The cast metal is then injected with molten metal after its preparation in the die mold. During this stage, the mold must be completely closed and sealed. Otherwise, it would be unable to “accept” the high-pressure molten metal.
The liquid metal may be then injected into the mold at a pressure of between 1,500 and 25,000 pounds per square inch (PSI).
3. Injection of Cavity
The mold is then opened and the molded cavity is then ejected. The mold has ejector pins that, when activated, free the cavity. Of course, for it to be released from the mold, the cavity must be solid. If the molten metal is still liquid, you must wait for it to cool before the cavity can be ejected from the mold.
The Advantages Of High Pressure Die Casting
High-Pressure Die Casting allows for the mass production that increased productivity rates. The parts produced also have greater surface finish, uniformity, and mechanical properties.
High-pressure die casting is an efficient and cost-effective manufacturing technique that:
- Produce sturdy, lightweight components that need less machining than manufactured parts.
- In a single piece, you can create complicated shapes that doesn’t assembly or welding.
- Offer a more broad range of shapes that other metal manufacturing techniques
- Close tolerances can be achieve.
Application Of High Pressure Die Casting
High pressure die casting is appropriate for the production of different aluminum automobile castings. Examples are engine blocks, gearbox casings, oil sumps, engine mounts. etc.
It’s a great material for producing components in a wide range of sectors. It can be from the simplest, such as a lightbulb, to the most specialized, such as aerospace engine parts.
High Pressure Die Casting Factory
Are you looking for a High- Pressure Die Casting manufacturer? JC Casting is here to help you. We specialized at High- Pressure Die Casting. We also have significant expertise in a variety of sectors. We ensure that the items you receive are of good quality for your specific requirements. Call us now!