Siemens SINUMERIK 840D Operating Manual page 306

Programming technological functions (cycles)
8.2 Milling
Machining type
You can select the machining mode for milling the longitudinal slot as follows:
● Roughing
● Finishing
● Finishing of edge
● Chamfer
Procedure
Parameters, G code program
PL Machining plane
Milling direction
RP Retraction plane
SC Safety clearance
F Feedrate
306
During roughing, the individual planes of the slot are machined one after the other until
depth Z1 is reached.
During finishing, the edge is always machined first. The slot edge is approached on the
quadrant, which joins the corner radius. In the last infeed, the base is finished from the
center out.
Edge finishing is performed in the same way as finishing, except that the last infeed
(finish base) is omitted.
Chamfering involves edge breaking at the upper edge of the longitudinal slot.
1. The part program or ShopMill program to be processed has been
created and you are in the editor.
2. Press the "Milling" softkey.
3. Press the "Groove" and "Longitudinal groove" softkeys.
The "Longitudinal Groove (SLOT1)" 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
Milling