Tapping (Cycle84, 840) - Siemens SINUMERIK 840D sl Operating Manual

Programming technology functions (cycles)
8.1 Drilling
Parameter Description
V3 Limit distance – (for stock removal only and manual limit distance)
Distance to the last infeed depth that the drill approaches in rapid traverse after stock
removal.
DTB (only for G
Dwell time at drilling depth in seconds

code)
Dwell time at drilling depth in revolutions

DT
Dwell time at final drilling depth in seconds

Dwell time at final drilling depth in revolutions

DTS (only for G
Dwell time for stock removal in seconds

code)
Dwell time for stock removal in revolutions

8.1.7

Tapping (CYCLE84, 840)

Function
You can machine an internal thread with the "tapping" cycle.
The tool moves to the safety clearance with the active speed and rapid traverse. The spindle
stops, spindle and feedrate are synchronized. The tool is then inserted in the workpiece with
the programmed speed (dependent on %S).
You can choose between drilling in one cut, chipbreaking or retraction from the workpiece for
stock removal.
Depending on the selection in the "Compensating chuck mode" field, alternatively the
following cycle calls are generated:
● With compensating chuck: CYCLE840
● Without compensating chuck: CYCLE84
When tapping with compensating chuck, the thread is produced in one cut. CYCLE84
enables tapping to be performed in several cuts if the spindle is equipped with a measuring
system.
Clamping the spindle
For ShopTurn, the "Clamp spindle" function can be set up by the machine manufacturer.
See also
Clamping the spindle (Page 234)
300
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Unit
mm
s
rev
s
rev
s
rev
Turning