Manufacturing – Casting methods - European Aluminium Association

1.7.3 Typical automotive applications of aluminium High Pressure
Die Castings
Transmission cases are one of the largest automotive parts commonly diecast
The common size range and close tolerances have been used to good effect in defining the
hydraulic network in large transmission cases shown above. The Belt Tensioners (below) are
typical of small die cast parts:
Roughly 200g in weight, these belt tensioners are amongst the smaller automotive die
castings
Productivity for small parts like this is usually enhanced via multi-cavity die designs, e.g. 4 to
8 cavities per die.
Production rates are up to 100 parts per hour per cavity.
To be die cast, engine blocks must designed with an open deck
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