This comes into play when the parts of the required castings for automotive industry are highly complicated or the wall thickness prescribed is quite thin. In this instance, relying solely on gravity to ensure that the molten metal fills the die cavity properly is impossible. The metal is driven into the die cavity under pressure in this scenario. High-Pressure Die Casting (HPDC) or low-Pressure Die Casting (LPDC) can be employed (LPDC). Castings created by the HPDC method provide good consistency for dimensions with tight tolerances, such as +/- 0.2 mm. This kind of precision in dimensions is unthinkable with GDC or even LPDC.