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