can someone recommend a good site that has instruction on figuring out the correct feeds and speeds for milling allum and stainless. For the past 3 or 4 years I have been doing in blindly but I know I can get so much more out of my machine in terms of efficiency and surface finish. I have downloaded a lot of charts that have sfm, ipr, rpm etc and a bunch of formulas with no real explanation. I am a self taught relatively new(4 or 5 years) machinist (I use that term lightly in regards to myself) and have a hard time deciphering the formulas and what is important in them.
thanks
Mark