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Thank you for your ideas.

I successfully mill at 14 IPM with .005" axial depth and 10%dia radial depth without coolant, just air jet to help blow the chips away. The program runned for 2 hours XD....

I tried surface finish with a zigzag toolpath and when the tool was doing conventionnal milling, you could see that the surface finish was weird and nothing like when the tool was doing climb...

Thank you for your replies. I feel like we're moving toward a solution here.

I guess I could tried at 50-75IPM to start (instead of 90IPM) but with an axial depth of 10-20% of the tool dia.

I...

At 150 000 RPM, I can't use regular coolant since it wont even reach the tool because of its high vicosity. I know that ethanol might be the solution here but I would like to not have to use it.
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Hi, it the first time I post on this forum but I found some solutions to my problems in the past thanks to everyone sharing their experience.


We recently acquiered an high speed air-turbine...