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PSA: Stop using the wrong coolant concentration on aluminum parts
I work at a shop in Grand Rapids and kept getting rough surface finishes on 7075 aluminum. Finally figured out the other guys were mixing coolant at 8% instead of the recommended 12% for our Haas VF-2. That little difference made the chips weld back onto the tool and trash the finish. Has anyone else dealt with this kind of coolant guesswork?
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reese5511d ago
People just eyeball measurements everywhere and wonder why stuff falls apart.
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the_eric19h ago
Man, @reese551 nailed it. I've seen people try to build furniture or hang shelves with nothing but a "looks about right" approach. Then they act shocked when the whole thing sags or crashes down an hour later. A level and a tape measure aren't that hard to grab.
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