Technology

Calculation for Cutting Speed, Spindle Speed and Feed

Cutting Speed Vc=π×D×n÷1000, Spindle Speed n=Vc÷π÷D×1000, Feed Vf=n×fz×Z, Feed per Tooth fz=F÷(n×Z）, Vc=Cutting Speed, π=The Circular Constant, D=Diameter, n=Spindle Speed, Z=Number of Flutes

When maximum speed of the machine spindle less than value of recommended milling conditions...

When maximum speed of the machine spindle less than value of recommended milling conditions, adjust conditions by calculation as follows.
Maximum Speed of the Spindle Speed Spindle Speed of Recommended Milling Conditions Rate
n min-1 ÷ n1 min-1 ＝ α
Feed of Recommended Milling Conditions Rate Real Feed
Vf1 mm/min × α ＝ Vf mm/min
  1. ▼If spindle speed is n min-1, feed is Vf mm/min.