Hi there,
In the next week or so, I'm going to be machining some cast iron parts on my mill using a 6mm endmill. I need some advice.
My mill only has a max spindle speed of 2000 RPM. Based on this (and the fact that my mill is only a small Sieg X1 micro mill), what sort of feedrates should I be using to machine the cast iron (obviously only approximate)?
I also read somewhere on the net that little to no coolant is required for cast iron. Is this true? It would be ideal if it is, as I don't have coolant on my mill. Would the occasional squirt of oil by hand be beneficial?
Thanks
Warren