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Switched to climb milling for finishing passes and I'm never going back
I always ran conventional milling on every pass because that's how my old boss taught me 8 years ago. Last month I had a job with a 0.0005 tolerance on a stainless part and kept getting chatter marks. Tried climb milling on the finish pass out of frustration and the surface finish was night and day better. Cut my deburring time in half too. Anyone else have a basic habit they stuck with too long before trying the opposite?
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hayden_rivera7d agoTop Commenter
Conventional milling has its place. Those climb passes can push the tool into the work on light cuts if your machine has any backlash. I watched a guy snap a 1/4" endmill that way on a Bridgeport. Chatter marks usually mean something is loose or your speeds and feeds are off. Changing the direction just masks the real issue.
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wright.kevin7d ago
Man, I saw a buddy do the exact same thing on his mill at home. He was climb milling some aluminum, took too light of a cut, and the backlash pulled the cutter right into the work. Snapped that endmill clean off. He just stood there staring at it for a solid ten seconds. I still give him crap about it when we talk machining.
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