Aluminum/zinc/magnesium die casting die, auto parts die casting die, motor shell die casting die, vacuum die casting die, precision die casting die. The basic process of die casting is: the liquid metal is first cast at low speed or high speed and filled into the cavity of the die. The die has a movable cavity surface. It is pressurized forged with the cooling process of the metal liquid, which not only eliminates the shrinkage cavity and porosity defects of the blank, but also enables the internal structure of the blank to reach the broken grain in the forged state. The comprehensive mechanical properties of the blank have been significantly improved.