Page 22 - Module DMV20173

2.0 CASTING PROCESSES

2.5.6 COLD-CHAMBER DIE-CASTING

1. Fig. 3.11 shows the schematic illustration of the cold-chamber die-casting process.
2. In cold-chamber die-casting, molten metal is poured into the injection cylinder at high

pressure without increase the heating temperature.
3. High melting point alloys such as aluminum, magnesium and copper commonly cast
using this process.

Fig 3.11 Schematic illustration of the cold-chamber die-casting process.

2.5.7 DIE-CASTING DIES

1. Both die-casting dies may be single cavity, multiple cavity (with several identical
cavities), combination cavity (with several different cavities), or unit dies (simple small

dies that can be combined in two or more units in a master holding die).
2. Fig. 3.12 shows the various types of cavities in a die-casting die.

BPLK 54 DMV 20173