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Old timer told me to stop using coolant on aluminum... he was right about that one thing
Worked with a guy named Frank who'd been running mills since the 70s. He kept telling me to ditch the flood coolant when cutting 6061 aluminum and just use air blast. I ignored him for like 6 months because it went against everything I learned in school. Finally tried it on a batch of 50 parts and my tool life doubled. The chips don't weld to the cutter anymore. Anyone else have a crusty old operator give you advice that sounds backwards but actually works?
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thompson.tyler1d ago
Frank with the 70s era mills? That's wild. I had a guy tell me to stop using coolant on brass once and I thought he was crazy. He was right too, the stuff would gum up and turn into paste without it. I still catch myself second guessing when someone who's been doing this since before I was born gives me advice. They've seen it all break and fixed it with whatever was laying around. You just gotta trust them sometimes.
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