Manufacturing – Casting methods - European Aluminium Association

1.5.2 Process description
In gravity die casting processes, the melt is metallurgically treated in the holding furnace,
which is positioned near the dies.
The quantity of melt for one casting is transported in a ladle and poured into the riser system
of the mould by tilting the ladle. The melt fills the mould cavity smoothly from the bottom up
until it appears in the risers positioned above the casting.
In the example shown, i.e. the casting of a cylinder head, the mould filling and solidification
conditions can be influenced by the design of the gating system and the risers in the top core.
Directional solidification can be forced by using water cooling in the bottom of the die
(combustion chamber area of the head).
Tridem
Gravity die casting process
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