Groove (Cycle930) - Siemens SINUMERIK 840D sl Operating Manual

Programming technology functions (cycles)
10.2 Rotate
Parameter
XM
ZM
α1
α2
* Unit of feedrate as programmed before the cycle call
10.2.3

Groove (CYCLE930)

Function
You can use the "Groove" cycle to machine symmetrical and asymmetrical grooves on any
straight contour elements.
You have the option of machining outer or inner grooves, longitudinally or transversely (face).
Use the "Groove width" and "Groove depth" parameters to determine the shape of the groove.
If a groove is wider than the active tool, it is machined in several cuts. The tool is moved by a
maximum of 80% of the tool width for each groove.
You can specify a finishing allowance for the groove base and the flanks; roughing is then
performed down to this point.
The dwell time between recessing and retraction is stored in a setting data element.
Approach/retraction during roughing
Infeed depth D > 0
1. The tool first moves to the starting point calculated internally in the cycle at rapid traverse.
2. The tool cuts a groove in the center of infeed depth D.
3. The tool moves back by D + safety clearance with rapid traverse.
4. The tool cuts a groove next to the first groove with infeed depth 2 · D.
5. The tool moves back by D + safety clearance with rapid traverse.
352
Description
Parameter selection of intermediate point
The intermediate point can be determined through position specification or angle.
The following combinations are possible - (not for stock removal 1 and 2)
● XM ZM
● XM α1
● XM α2
● α1 ZM
● α2 ZM
● α1 α2
Intermediate point X ∅ (abs) or intermediate point X in relation to X0 (inc)
Intermediate point Z (abs or inc)
Angle of the 1st edge
Angle of the 2nd edge
Machine manufacturer
Please also refer to the machine manufacturer's specifications.
Unit
mm
mm
Degrees
Degrees
Operating Manual, 05/2017, A5E40868721
Turning