Longitudinal Groove (Slot1) - Siemens SINUMERIK 840D sl Operating Manual

Parameter Description
FS Chamfer width for chamfering - (for chamfering only)
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
* Unit of feedrate as programmed before the cycle call
8.4.7

Longitudinal groove (SLOT1)

Function
You can use the "Longitudinal groove" function to mill any longitudinal groove.
The following machining methods are available:
● Mill longitudinal groove from solid material.
● Pre-drill longitudinal groove in the center first if, for example, the milling cutter does not
Clamping the spindle
For ShopTurn, the "Clamp spindle" function can be set up by the machine manufacturer.
Longitudinal slot with the width of the tool
When milling a longitudinal slot, which is located in parallel with the spindle axis, and which
should be machined with the width of the tool, then the clamping remains active after
insertion in order to achieve more accurate results.
The cycles identify this special case and do not cancel clamping after insertion if the
following secondary conditions are fulfilled.
After machining, the clamping in the cycles is canceled again.
Supplementary conditions
● Finishing longitudinal slot with width = tool diameter
● Roughing longitudinal slot with (width - 2 * finishing allowance) = tool diameter
See also
Clamping the spindle (Page 234)
Turning
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
cut in the center (program the drilling, longitudinal groove and position program blocks in
succession).
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Programming technology functions (cycles)
8.4 Milling
Unit
mm
mm
%
411