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

Parameter Description
SPOS Spindle stop position
Lift mode
● Do not lift off contour
The cutting edge is not fully retracted, but traverses back to the retraction plane.
● Lift
The cutting edge retracts from the edge of the hole and then retracts to the safety
clearance from the reference point and then positions at the retraction plane and hole
center point.
DX (only G Code) Retraction distance in the X direction (incremental) - (for lift only)
DY (only G code) Retraction distance in the Y direction (incremental) - (for lift only)
DZ (only G code) Retraction distance in the Z direction (incremental) - (for lift only)
D (only ShopMill) Retraction distance (incremental) - (for lift only)
10.1.8

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, chip breaking or retraction from the workpiece for
swarf 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, when the spindle is equipped with a measuring system.
Input simple (only for G code programs)
For simple machining operations, you have the option to reduce the wide variety of parameters
to the most important parameters using the "Input" selection field. In this "Input simple" mode,
the hidden parameters are allocated a fixed value that cannot be adjusted.
If the workpiece programming requires it, you can display and change all of the parameters
using "Input complete".
Milling
Operating Manual, 05/2017, A5E40868956
Machine manufacturer
Various defined values can be pre-assigned using setting data.
Please refer to the machine manufacturer's specifications.
Programming technological functions (cycles)
10.1 Drilling
Unit
Degrees
mm
mm
mm
mm
345