html-Catalog FORMAT plus - EDE 2015 - 2017
539
Cutting Data
Thread cutting - cutting data
Name and formulas
Speed RPM
D = workpiece diameter
(mm) (mm)
Vc • 1000
n =
(min -1 )
D 2 = edge diameter (nominal diameter)
π • D c
n = speed P = pitch
(min -1 )
(mm) (mm)
Cutting speed
P h V f
= gradient
π • D • n
= path speed
(m/min)
Vc =
(m/min)
1000
2 Cutting Tools
TPI = Turn per inch Vc = cutting speed
(m/min)
path speed
λ = tilt angle
(°)
n • P h
V f
=
(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
FORMAT Indexing inserts m
Ç 2/206
We place special value on the quality of our products. As such, price and performance enjoy an outstanding cost-benefit ratio.
Ç 2/255
Ç 2/265
2/293
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