Siemens SINUMERIK 840D Operating Manual page 304

Programming technological functions (cycles)
8.2 Milling
4. The multi-edge is traversed again in a quadrant. This process is repeated until the depth
5. The tool retracts to the safety clearance at rapid traverse.
Note
A multi-edge with more than two edges is traversed helically; with a single or double
edge, each edge is machined separately.
Procedure
Parameters, G code program
PL Machining plane
Milling direction
RP Retraction plane
SC Safety clearance
F Feedrate
Parameter Description
FZ Depth infeed rate
(only for G code)
∇ (roughing)
Machining 
∇∇∇ (finishing)

∇∇∇ edge (edge finishing)

Chamfering

Single position
Machining 
position
A polygon is milled at the programmed position (X0, Y0, Z0).
Position pattern

Several polygons are milled at the programmed position pattern (e.g. pitch circle,
grid, line).
304
of the multi-edge has been reached.
1. The part program or ShopMill program to be processed has been
created and you are in the editor.
3. Press the "Milling" softkey.
4. Press the "Multi-edge spigot" and "Multi-edge" softkeys.
The "Multi-edge" input window opens.
mm
mm
mm/min
Parameters, ShopMill program
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant
cutting rate
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
mm/min
mm/rev
rpm
m/min
Unit
mm/min
Milling