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A guy at the shop said my coolant mix was too weak and causing chatter on the aluminum parts.
I switched to a 10% concentration instead of my usual 5% and the finish is way better now, what ratio do you all run for 6061?
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kai_west6d ago
My old shop foreman swore by 12% for all our 6061 work, said it was the sweet spot for lube and rust prevention. We had this one part, a thin-walled tube, that would always squeal and leave a terrible finish until we listened to him. It's funny how a little change makes such a big difference, kinda like what @tessap98 was saying about chips clearing better. I still run around 10-12% at home now, mostly because I'm too lazy to mix two different batches.
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tessap986d ago
Oh man, that makes total sense. I had the exact same problem with my old machine. Ran a super weak mix for years thinking it was fine, but everything just felt grabby. Bumped it up to like 8 or 9 percent and it was a night and day difference. The finish smoothed right out and the chips cleared way better. I stick right around there now for general work.
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