Warped,
Thanks for the reply. I wondered about the torque as well. I'll have to do some more research, but it looks like companies are routing aluminum aircraft parts.
What feeds and depth of cut are you running?
I do a lot of cutting with 1/4" end mills in aluminum and manage about 16-18 ipm, with a depth of cut of around .050". This has been with a 3-flute HSS end mill. I just got a 2-flute solid carbide cutter from Enco. Haven't cut with it yet but I'm interested to try it.
According to Microcut (
http://www.microcutusa.com/slotcuttingcond.html) I should maybe be backing off on the speed a little bit, but they recommend an 1/8" depth of cut.
Scott