1 fundamentals, Overview, Fundamentals – HEIDENHAIN TNC 640 (34059x-04) Cycle programming User Manual
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Fixed Cycles: Tapping / Thread Milling
4.1
Fundamentals
4
102
TNC 640 | User's Manual Cycle Programming | 3/2014
4.1
Fundamentals
Overview
The TNC offers 8 cycles for all types of threading operations:
Cycle
Soft key
Page
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