Originally Posted by cnctoolman I would only caution on what material type it is. I have found no problem dry machining 6061, and 7075, but 3003 I have always had to run coolant because of the "gumminess" of the material. It likes to gall cutters up in a heartbeat. Just some of my past experience. |
6060 common garden variety exhibits the same behaviour, I lost a flute on an 8mm end mill recently when the coolant pipe ran off the side of the job during a pass!
At the least give it a spray with WD40 or CRC56 while cutting
Your cutters may thanks you.