Thermal Management

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of Die Tooling

Thermal management of the tooling and dies is a critical production factor in die casting.

  • If die faces overheat during production, "heat checking" can occur.

  • Heat checking is the formation very fine surface cracks on the die faces, which will transfer to the die casting as raised veins.

The die casting engineer has to consider the thermal loads that occur in production (in terms of the thermal mass and the production rate) and ensure that the die faces do not overheat.

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Heat Checking
on a Die Face

Two thermal management approaches are used for cooling the dies --
------  Active water cooling through channels in the die.
------ Spray cooling on die faces between die casting shots

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Copyright 2003  by the North American Die Casting Association.  All rights reserved. 
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In cooperation with
Kennedy Die

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