Originally Posted by JohnJW  I think facing is very common on a lathe right? but if it's common, how do people face on standard TL-1 or TL-2 with a 2000 rpm?..... |
I did phrase things a bit sloppily; I said 'you need' when in fact it is really more correct to say things go faster at higher rpms. With carbide you can machine aluminum at something like 3000sfm which means that under CSS your spindle is up to 2000 rpm at a diameter of just over 5" so the extra speed saves time.