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29-08-2016 #23
Well your doing it wrong then. I cut dry pretty much all the time using Carbide tooling with just touch of air and odd squirt of coolant.
Your most likely cutting too Shallow. Carbide likes to be worked hard.
Another Myth is that single and Twin flute cutters are needed for Ali. 3 flute work perfectly well and allow higher feed rates with more DOC.
My Standard setup is 3 Flute serated edge roughing cutter followed with 0.35 finish pass with Twin flute. The Rougher allows quick stock removal with high DOC.
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