Japan
United States
Mexico
Brazil
EU
United Kingdom
Germany
Spain
France
Italy
Poland
Turkey
China
South East Asia, Oceania, South Africa
India
For steels
For stainless steels
For cast iron
For non-ferrous metal
For difficult to cut material
For hardened material
Inch
Cutting Speed(vc)
vc(SFM):Cutting Speed
DC(inch);Cutter Diameter
π(3.14):Pi
n(min-1):Main Axis Spindle Speed
Problem
What is the cutting speed when main axis spindle speed is 350min-1 and the cutter diameter is ø5" ?
Answer
Substitute π=3.14, DC=5", n=350 into the formulae.
vc=π×DC×n÷12=3.14×5"×350÷12=457.9SFM
The cutting speed is 457.9SFM.
Feed Per Tooth(fz)
Check the item you want to calculate, input values in the three boxes, and then press the Calculate button.
vf(IPM):
Table Feed per Min.
z:Insert Number
n(min-1):
Main Axis Spindle Speed (Feed per Revolution f=zxfz)
fz(IPT):Feed per Tooth
Problem
What is the feed per tooth when the main axis spindle speed is 500min-1, number of insert is 10, and table feed is 20inch/min?
Answer
Substitute the above figures into the formulae.
fz=Vf÷(z×n)=20÷(10×500)=.004IPT
The answer is .004IPT.
Table Feed(vf)
vf(IPM): Table Feed per Min.
z:Insert Number
n(min-1): Main Axis Spindle Speed
fz(IPT):Feed per Tooth
Problem
What is the table feed when feed per tooth is .004IPT, number of insert is 10, and main axis spindle speed is 500min-1?
Answer
Substitute the above figures into the formulae.
vf=fz×z×n=.004IPT×10×500=20inch/min
The table feed is 20inch/min.
Cutting Time(Tc)
L(mm):Total Table Feed Length (Workpiece Length: (l)+Cutter Diameter：DC))
vf(mm/min):Table Feed per Min.
Tc(min):Cutting Time
Problem
What is the cutting time required for finishing 100mm width and 300mm length surface of a cast iron (JIS FC200) block when the cutter diameter is ø200mm, the number of inserts is 16, the cutting speed is 125m/min, and feed per tooth is 0.25mm. (spindle speed is 200min-1）
Answer
Calculate table feed per min
vf=0.25×16×200=800mm/min
Calculate total table feed length.
L=300+200=500mm
Substitute the above answers into the formula.
Tc=500÷800=0.625(min)
0.625×60=37.5(sec). The answer is 37.5 sec.
Metric
Cutting Speed(vc)
Check the item you want to calculate, input values in the two boxes, and then press the Calculate button.
*Divide by 1000 to change to m from mm.
DC(mm);Cutter Diameter
π(3.14):Pi
n(min-1):Main Axis Spindle Speed
vc(m/min):Cutting Speed
Example
What is the cutting speed when main axis spindle speed is 350min-1 and the cutter diameter is ø125 ?
Answer
Substitute π=3.14, DC=125, n=350 into the formula.
vc=(π•DC•n)÷1000=(3.14×125×350)÷1000
=137.4m/min
The cutting speed is 137.4m/min.
Feed Per Tooth(fz)
Check the item you want to calculate, input values in the three boxes, and then press the Calculate button.
vf(mm/min):
Table Feed per Min.
z:Insert Number
n(min-1):
Main Axis Spindle Speed (Feed per Revolution f=zxfz)
fz(mm/t.):Feed per Tooth
Example
What is the feed per tooth when the main axis spindle speed is 500min-1, number of insert is 10, and table feed is 500mm/min?
Answer
Substitute the above figures into the formula.
fz=Vf÷(z×n)=500÷(10×500)=0.1mm/t.
The answer is 0.1mm/t.
Table Feed(vf)
vf(mm/min): Table Feed per Min.
z:Insert Number
n(min-1): Main Axis Spindle Speed
fz(mm/t.):Feed per Tooth
Example
What is the table feed when feed per tooth is 0.1mm/t., number of insert is 10, and main axis spindle speed is 500min-1?
Answer
Substitute the above figures into the formula.
vf=fz×z×n=0.1×10×500=500mm/min
The table feed is 500mm/min.
Cutting Time(Tc)
Input the values.
L(mm):Total Table Feed Length (Workpiece Length: (l)+Cutter Diameter：DC))
vf(mm/min):Table Feed per Min.
Tc(min):Cutting Time
Example
What is the cutting time required for finishing 100mm width and 300mm length surface of a cast iron (JIS FC200) block when the cutter diameter is ø200mm, the number of inserts is 16, the cutting speed is 125m/min, and feed per tooth is 0.25mm. (spindle speed is 200min-1）
Answer
Calculate table feed per min
vf=0.25×16×200=800mm/min
Calculate total table feed length.
L=300+200=500mm
Substitute the above answers into the formula.
Tc=500÷800=0.625(min)
0.625×60=37.5(sec). The answer is 37.5 sec.
For finish cutting
For medium cutting
For rough cutting
