Formulas for Drilling
CUTTING SPEED (vc)
- VC (m/min) = Cutting Speed
- D1(min) = Drill Diameter
- π (3.14) = Pi
- n(min^-1) = Rotational Speed of the Main Spindle
*Note Unit transformation ( from "mm" to "m")
FEED OF THE MAIN SPINDLE (vf)
- vf(mm/min) = Feed Speed of the Main Spindle (z axis )
- f(mm/rev) = Feed per Revolution
- n (min^-1) = Rotational Speed of the Main Spindle
DRILLING TIME (Tc)
- Tc (min) = Drilling Time
- n(min^-1) = Spindle Speed
- ld (mm) = Hole Depth
- f(mm/rev) = Feed per Revolution
- I = Number of Holes
Formulas for Milling
CUTTING SPEED (vc)
- VC (m/min) = Cutting Speed
- D1(min) = cutter Diameter
- π (3.14) = Pi
- n(min^-1) = Main Axis Spindle Spindle
*Note Divided by 1000 to Change to "m" from "mm" )
FEED PER TOOTH (fz)
- fz (mm/tooth) = Feed per Tooth
- vf (mm/min) = Table Feed per Min
- n(min ^-1) = Main Axis Spindle Speed (Feed per Revolution f = zxfz)
TABLE FEED (vf)
- vf(mm/min) = Table Feed per Min
- z = insert Number
- fz (min^-1) = MAin Axis Spindle Speed
CUTTING TIME (Tc)
- Tc (min) = Cutting Time
- vf (mm/min) = Table Feed Per Min
- L (mm) = Total Table Feed Length (Workpiece)
- Length = Cutter Diameter D1