Fought a chatter problem on a 316 stainless run for 3 days and it was the coolant mix the whole time

Max Green · 2026-09-25T17:10:03.368618+00:00

Drove myself nuts chasing speeds, feeds, and insert grades on a 40 piece run of 316 parts until I checked the refractometer and my mix was sitting at 4 percent instead of 8, and I still feel dumb about it.

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Fought a chatter problem on a 316 stainless run for 3 days and it was the coolant mix the whole time | CNC Operators - The Design Community Hub