the process of making metal objects by forcing liquid metal into a hollow container with a particular shape, and then allowing it to become hard. Forming metal objects by injecting molten metal under pressure into dies or molds. An early and important use of the technique was in the Linotype machine (1884), but the mass-production automobile assembly line gave die casting its real impetus. Great precision is possible, and products range from tiny parts for sewing machines and automobiles to aluminum engine-block castings
The forming of parts by forcing molten metal into metal molds Castings made with this process can be made to very exacting tolerance Zinc and aluminum are most commonly used
The injection of molten metal at high velocity and under pressure into the die cavity