I am hoping to take the next leap and mill some aluminum parts soon. Thickness between .250 and.50, 6061, and I will want to use an 1/8" or 3/16" bit so I can bore holes to be tapped M6 and smaller. I would really like to avoid breaking too many $15+ bits in any one day...
So my questions are what settings would anyone recommend in the beginning? I have several 3/16" 2 flute carbide up-cut router bits, and at least one 1/8" single flute bit designed for AL. My preference would be to use the 3/16" bits if possible, I have used a similar bit in a router before with mixed results on AL, got some galling probably due to moving too slow. I just recently learned that faster is sometimes better when it come to keeping cuts cool.
Any feedback would be appreciated.
RMW