539 / 1562
2/293
2
Cutting Tools
Name and formulas
Speed RPM
n =
Vc • 1000
(min
-1
)
π • D
c
D = workpiece diameter
(mm)
D
2
= edge diameter (nominal diameter)
(mm)
n = speed
(min
-1
)
P = pitch
(mm)
P
h
= gradient
(mm)
V
f
= path speed
(m/min)
TPI = Turn per inch
Vc = cutting speed
(m/min)
λ
= tilt angle
(°)
Cutting speed
Vc =
π • D • n
(m/min)
1000
path speed
V
f
=
n • P
h
(m/min)
1000
Gradient
P
h
= P • number of turns (min)
Tilt angle
λ
= arctan P
h
(°)
D
2
• π
Conversion inches to metric
TPI = 25.4
P
Thread cutting - cutting data
Ç
2/206
Ç
2/255
Ç
2/265
We place special value
on the quality of our products.
As such, price and performance enjoy
an outstanding cost-benefit ratio.
FORMAT
Indexing inserts
m
Cutting Data
539