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I used to think a 0.005 inch tolerance on aluminum was no big deal
An inspector at the shop in Dayton told me I was letting parts walk out the door with chatter marks because my feed rate was too high for the finish pass. I dropped it from 12 inches per minute to 8 and the surface finish is way better now, no more callbacks. What's your go-to feed for a clean finish on 6061?
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wade25016d ago
What tool diameter and stepover are you running?
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mark_ward16d ago
My buddy in Toledo swears by 6 IPM for a clean finish, and wade250 has a good point about stepover.
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blair_nguyen16d ago
My friend at a shop in Milwaukee had a similar issue with 7075. He found dropping to 7 IPM with a 3/8 tool and a light stepover made all the difference for his final passes. The parts just looked polished right off the machine.
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