Aluminum Gravity Die Casting

Gravity Die Casting

Gravity die casting is a manufacturing process for producing accurately dimensioned, sharply defined, smooth or textured-surface...

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Aluminum Gravity Die Casting

Gravity die casting is a manufacturing process for producing accurately dimensioned, sharply defined, smooth or textured-surface metal parts. It is accomplished by gently pouring molten metal into re usable metal dies under the force of gravity.

To begin the casting cycle, the die caster clamps the two die halves tightly together. Molten metal is poured into the die cavity where it solidifies quickly. The die halves are drawn apart and the casting is ejected. Die casting dies can be simple or complex, having moveable slides, cores, or other sections depending on the complexity of the casting.

The main advantage of gravity die casting over sand casting is the high speed of production. The reusable die tooling allows for many hundreds of castings to be produced in a day. High definition parts reduce machining costs and superior surface finish reduces finishing costs.

The GDC process is capable of achieving 20% higher mechanical properties than that of a sand casting because of faster rate of solidification imparting better grain size.


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