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5 finished p a rt cont our – HEIDENHAIN CNC Pilot 4290 User Manual

Page 245

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HEIDENHAIN CNC PILOT 4290

233

Undercut type F

Parameters
K:

Undercut length

I:

Undercut depth (radius)

R:

Undercut radius (in both corners of the undercut)

P:

transverse depth

W:

Approach angle (undercut angle)

A:

Runout angle (transverse angle)

TURN PLUS suggests undercut parameters calculated from the
diameter (see ”

11.1.3 Undercut Parameters DIN 509 F”).

Undercut type G

TURN PLUS proposes the parameter values - but you can overwrite
them. The proposed values are based on the metric ISO thread (DIN
13) that is found from the diameter.

Parameter:

see ”

11.1.1 Undercut Parameters DIN 76”

Finding the thread pitch: see ”

11.1.5 Thread Pitch”

Parameters
F:

Thread pitch

K:

Undercut length (undercut width)

I:

Undercut depth (radius)

R:

Undercut radius (in both corners of the undercut) –
default: R=0.6*I

W:

Approach angle (undercut angle)

Undercut type H

Parameters
K:

Undercut length

R:

Undercut radius

W:

Approach angle

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