What Are the Different Types of Aluminum Die Casting?

There are the different types of aluminum die casting（https://www.jtrmachine.com/aluminum-die-casting）：

High-Pressure Die Casting:
This is the most common type, utilizing extremely high pressure (up to 20,000 psi) to inject molten aluminum into the die cavity.
This rapid solidification results in fine-grained structures and high dimensional accuracy.  
Suitable for producing intricate parts with thin walls.  

Low-Pressure Die Casting:
Gravity is used to fill the die cavity with molten aluminum.
Lower pressures result in less internal stress and a more uniform grain structure.
Typically used for larger and thicker castings.

Semi-Solid Die Casting:
Involves injecting a semi-solid slurry of aluminum (a mixture of solid and liquid phases) into the die.
This process offers improved mechanical properties and reduced porosity compared to traditional high-pressure die casting.