Cutting speed (vc)

Check the item you want to calculate, input values in the two boxes, and then press the Calculate button.

Cutting speed (vc)

*Divide by 1,000 to change to m from mm.

vc (m/min) : Cutting Speed
DC (mm) : Drill Diameter
π (3.14) : Pi
n (min-1) : Main Axis Spindle Speed
n(min-1)
DC(mm)
vc(m/min)

Example

Example

What is the cutting speed when main axis spindle speed is 1350min-1 and drill diameter is 12mm ?

Answer

Substitute π=3.14, DC=12, n=1350 into the formula
vc=π×DC×n÷1000=3.14×12×1350÷1000=50.9m/min
The cutting speed is 50.9m/min.

Feed of the main spindle (vf)

Check the item you want to calculate, input values in the two boxes, and then press the Calculate button.

Feed of the main spindle (vf)

vf(mm/min)：Feed Speed of the Main Spindle (Z axis)
fr(mm/rev)：Feed per Revolution
n(min-1) ：Main Axis Spindle Speed
fr(mm/rev)
n(min-1)
vf(mm/min)

Example

Example

What is the spindle feed (vf) when the feed per revolution is 0.2mm/rev and main axis spindle speed is 1350min-1 ? 

Answer

Substitute fr=0.2,n=1350 into the formula
vf=fr×n=0.2×1350=270mm/min
The spindle feed is 270mm/min.

Drilling time (Tc)

Input the values

Drilling time (Tc)

Tc (min) : Drilling Time
n (min-1) : Spindle Speed
ld (mm) : Hole Depth
fr (mm/rev): Feed per Revolution
i : Number of Holes
ld(mm)
i
n(min-1)
fr(mm/rev)
Tc(min)
second(s)

Example

Example

What is the drilling time required for drilling a 30mm length hole in alloy steel (JIS SCM440) at a cutting speed of 50m/min and a feed 0.15mm/rev ?

Answer

n=（50×1000）÷(15×3.14)=1061.57min-1
Tc=(30×1)÷(1061.57×0.15)=0.188
=0.188×60≒11.3sec