Siemens sinumerik 808d Programming And Operating Manual page 153

NOTICE
For transverse grooving, the angle STA1 is usually 90 degrees (paraxial case).
ANG1 and ANG2 (flank angle)
Asymmetric grooves can be described by flank angles specified separately. The angles can
assume values between 0 and 89.999 degrees.
RCO1, RCO2 and RCI1, RCI2 (radius/chamfer)
The form of the groove can be modified by entering radii/chamfers at the margin or at the
base. It is imperative to enter the radii with positive sign, and the chamfers with negative
sign.
How the programmed chamfers are taken into account is specified in dependence of the
tens digit of the VARI parameter.
● With VARI<10 (tens=0) Chamfers with CHF=...
● With VARI>10 chamfers programmed with CHR
FAL1 and FAL2 (finishing allowance)
It is possible to program separate finishing allowances for groove base and flanks. During
roughing, stock removal is carried out up to these finishing allowances. The same tool is
then used to machine a contour-parallel cut along the final contour.
IDEP (infeed depth)
You can divide the paraxial grooving into several depth infeeds by programming an infeed
depth. After each infeed, the tool is retracted by 1 mm for chip breaking.
The IDEP parameter must be programmed in all cases.
DTB (dwell time)
The dwell time at the groove base should be selected such that at least one spindle
revolution is carried out. It is programmed in seconds.
Turning Part 2: Programming (Siemens instructions)
Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
Cycles
2.5 Turning cycles
153