Can I get some advice about cutting speeds where my VM25 milling machine has a top RPM of 2250 approx.
I have used the formulas to calculate for a 10mm HSS 2 flute end mill for cutting alluminium.
Using 300 as the SFM the equation gives an RPM of 3048
If I calculate for a 6mm end mill the result is 4559, a lot higher.
Should I just accept that my maximum is 2250 RPM and use this where ever the need is higher ?
I am trying to learn to get everything right according to the perceived wisdom.
Regards
Steve