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1/2" Radius
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The 1/2" radius on the top edge will eliminate the stress concentration in the steel tool, extending tool life and reducing production costs.

But the 1/2" radius is excessive and will remove too much metal from the block, reducing its effectiveness as a heat sink.  

  • Note the generous draft angle on the side walls for easy ejection from the die.
 The 1/2" radius" is not a good design choice.
   Go back and choose another approach.
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Copyright 2005  by the North American Die Casting Assoc. All rights reserved. 
Comments to: udvardy@diecasting.org
Last Modified:January, 2005 by STG

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