Originally Posted by carvemylog  Thanks for the replies. Would an end mill work OK at the higher rpms a router turns? I cut a 3/4" 7075 plate of aluminum yesterday with a router bit and it did a good job other then taking forever at 0.25 doc. I only sprayed a mist of water on the bit for coolant. Do you think I could increase the doc using an end mill and only a water as coolant?
Thanks |
At 25K RPM, you should be able to do true high-speed machining, which means shallow cuts, very fast feed rates, and no coolant. But a router bit will be less than ideal, as the rake will be wrong for aluminum, and they're also not nearly as sharp as an endmill.
I've been tempted to make a mount to put a router head on my mill to try some HSM, before sinking the money into a real high speed spindle....
Regards,
Ray L.