Centric) hole, 6 f o rm elements – HEIDENHAIN CNC Pilot 4290 V7.1 User Manual

Page 415

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HEIDENHAIN CNC PILOT 4290

415

6.6 F

o

rm

Elements

(Centric) Hole

This form element defines a single hole at the turning center (front or
rear face). The hole may contain the following elements:

„

Centering

„

Core hole

„

Countersinking

„

Thread

L

Length of the thread, including runout length

K

Runout length (for threads without undercut)

I

Division for determining the threads/unit

H

Number of thread turns (default: 1)

A

Thread angle left, with nonstandard thread

W

Thread angle right, with nonstandard thread

P

Thread depth, with nonstandard thread

R

Thread width, with nonstandard thread

„

“F” needs to be defined for metric fine-pitch threads,
tapered threads and tapered fine-pitch threads,
trapezoid and flat trapezoid threads as well as
nonstandard threads. The parameter may be omitted for
the other types of threads. The thread pitch is then
calculated from the diameter.

„

Enter either “I” or “H”. The rule is: Thread pitch /
graduation = number of starts.

„

You can assign further attributes to the thread (see
“Machining attributes – Threading” on page 474).

„

Use the “nonstandard thread” if you want to use
individual parameters.

Danger of collision!

The thread is generated to the length of the reference
element. For the machining of threads without an
undercut, it is necessary to program the “runout length K”
so that the overrun can be executed by the CNC PILOT
without danger of collision.

Parameters

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