- In evaluating a component design, the casting engineer
looks for isolated thick sections which could be "hot spots" where shrinkage
porosity or "hot tears" might form.
--
As metal in thin sections solidifies first, the thicker section will be isolated from the
molten feed metal and shrinkage porosity can form in the thick section.
-- The thin connecting section into the thicker
section should be "padded" to improve the thermal connection and metal flow into
the "hot spot".
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