Re: Torque v.s. Power
hy as shown attached, a machine producer can give you such a spindle diagram
let's supose you have a repetable setup, same fixture, tool, and cutting specs, and simply wish to get another machine
comparing both diagrams, at the same rpm, can give you a glance about how much you are pushing each machine; as you allready have experience with your actual machine, you can evaluate the spindle of another machine
basically, it tells you how much you are pushing the spindle, and the spindle only, because is no guarantee that the structure of the machine is better ?! at least should be
okuma machines can display such data live, as you cut it, so to give you a hint on where you are on machine capability scale
you push it harder, you need more torque available, at the cost of grid power ... simple as that
for example, you can balance required torque, only by changing inserts :
... obvious example, from wear, to new ones
... less obvious, from tough edge, to low force feed / kindly
Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg