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Dropped $120 on a set of fancy carbide inserts and they chipped on the first run
I grabbed a 10 pack of coated CNMG inserts off a tool truck last Tuesday, thinking they'd handle this 304 stainless job like butter. First part, roughing pass at the recommended feeds, and two corners blew out before I even finished the profile. Anyone else had a supposedly premium tool let you down that fast?
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oliver_wilson496d ago
Probably running them a hair high on the speed. Those coated inserts don't like getting pushed too fast in stainless.
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luna8916d ago
Learned that one the hard way myself a few years back. Used to run them hot thinking it would help cut through stainless faster, but ended up burning through inserts way too quick. Slowing down the speed made a big difference in tool life for me.
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