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Hot take: I was wrong about letting molds cool in the open air for every job.
A cracked 40-pound aluminum gear blank last month showed me the thermal shock from our 68-degree shop floor was the culprit, not the alloy mix, so when do you guys start using controlled cooling boxes?
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johnson.adam6mo ago
Tell me about it, we lost a whole batch of bronze bushings the same way. Started using a basic insulated box for anything over ten pounds now. The temperature drop just happens way too fast out in the open.
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seanperry6mo ago
Insulated box is smart, but what about the humidity inside it?
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