Alloy Requirements

The die casting engineer has a range of different metal alloys to choose from, carefully considering the performance requirements and manufacturability issues for the component.

Cold Chamber Die Casting Machine

For thermal performance, the alloy should have high thermal conductivity.
For mechanical performance, the alloy has to be both strong and stiff.
The housing has a machined mating surface and numerous screw holes that have to be drilled and tapped. The alloy has to be easily machined.

From the die casting perspective, the thin walls of the fins and ribs in the base require an alloy that will flow and fill the die cavity rapidly and easily, but will not solidify too quickly. Early solidification in the die can produce defects (lack of fill, cold shuts, etc.) in the casting.

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