Siemens SINUMERIK 840D sl Operation/Programming Manual page 254

ShopTurn Functions
5
5.5 Milling
Machining type
Circ. slot
Parameters
T, D, F, S, V See Sec. "Creating program blocks".
FZ Depth infeed rate
Position You can select 8 different positions:
Clamp/release spindle (only for End face Y/Peripheral surface Y, and for End face
C/Peripheral surface C if the tool is inserted in the center for roughing)
The function must be set up by the machine manufacturer.
Machining
type
Chamfer
5-254
You can select the machining mode for milling the circumferential slot
as follows:

Roughing
During roughing, the individual planes of the slot are machined
one after the other from center point of the semicircle at the end of
the slot until depth Z1 is reached.

Finishing
In "Finishing" mode, the edge is always machined first until depth
Z1 is reached. The slot edge is approached on the quadrant,
which joins the radius. In the last infeed, the base is finished from
the center point of the semicircle to the end of the slot.

Edge finishing
Edge finishing is performed in the same way as finishing, except
that the last infeed (finish base) is omitted.

Chamfer
Chamfering involves edge breaking at the upper edge of the
circumferential slot.
Press the "Milling", "Slot" and "Circ. slot" soft keys.
Slot >
 End face/End face C – Front
 End face/End face C – Rear
 Peripheral surface/Peripheral surface C – Inner
 Peripheral surface/Peripheral surface C – Outer
 End face Y – Front (only when Y axis exists)
 End face Y – Rear (only when Y axis exists)
 Peripheral surface Y – inner (only when Y axis exists)
 Peripheral surface Y – Rear (only when Y axis exists)
Roughing
Finishing
Finish edge
Description
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
08/2005
5
Unit
mm/tooth
mm/min
♥ Siemens AG, 2005. All rights reserved