Fundamentals; Overview - HEIDENHAIN TNC 620 User Manual

4
Fixed Cycles: Tapping / Thread Milling
4.1

Fundamentals

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 prepositioning,
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
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HEIDENHAIN | TNC 620 | User's manual for cycle programming | 9/2015