Fundamentals; Overview - HEIDENHAIN TNC 640 User Manual

4
4.1

Fundamentals

Overview

The TNC offers the following cycles for all types of threading
operations:
Soft key Cycle
206 TAPPING NEW
With a floating tap holder, with
automatic pre-positioning,
2nd set-up clearance
207 TAPPING NEW
Without a floating tap holder, with
automatic pre-positioning, 2nd set-up
clearance
209 TAPPING WITH CHIP BREAKING
Without a floating tap holder, with
automatic pre-positioning, 2nd set-up
clearance, chip breaking
262 THREAD MILLING
Cycle for milling a thread in pre-drilled
material
263 THREAD MILLING/
COUNTERSINKING
Cycle for milling a thread in pre-drilled
material and machining a countersunk
chamfer
264 THREAD DRILLING/MILLING
Cycle for drilling into solid material
with subsequent milling of the thread
with a tool
265 HELICAL THREAD DRILLING/
MILLING
Cycle for milling the thread into solid
material
267 OUTSIDE THREAD MILLING
Cycle for milling an external thread
and machining a countersunk chamfer
122
Fixed Cycles: Tapping / Thread Milling | Fundamentals
Page
123
126
130
136
139
143
147
151
HEIDENHAIN | User's manual for cycle programming | 10/2017