Siemens SINUMERIK 802D sl Programming And Operating Manual page 74

Manual machining
5.4 Manual machining using cycles (functions)
Parameter
Finishing allowance
External
groove/internal
groove/planar to
chuck/planar from
chuck
Contour angle
Flank angle 1
Flank angle 2
Dwell time at recess
base
Extended grooving
The machining sequence is as follows:
1. Starting from the current axis position, the first calculated groove position is approached
2. Executing the depth infeeds in the form of a roughing movement: each infeed depth is
3. When the base of the groove is reached for the first time, the tool is withdrawn from the
4. Now the width infeed is executed: the width offset is calculated cycle-internally, taking
5. Depth infeeds are then alternated as roughing motion and width offset until the entire
6. Finishing is started immediately after the roughing operation. The entire contour is
7. Finally, the original position of the axes before the start of machining is approached
74
Description
m2 Finishing allowance perpendicular to the contour.
In this toggle field you can select the type of groove machining required whereby the
respective selection is displayed in a diagram on the screen.
A0 This input value specifies the angle of the incline where the groove is to be executed.
A1 This input value determines the inclination of the first groove flank.
A2 This input value determines the inclination of the second groove flank.
dt Here you can enter the dwell time of the tool on the groove base.
(diagonally) in both axes, taking into account the clearance distance and finishing
allowance.
calculated internally so that firstly the setting "m1" is not exceeded and secondly the
infeed distance is kept uniform until the base of the groove is reached (taking into
account the final machining allowance). After each infeed, the tool is retracted by the
clearance distance for chip breaking.
material at the programmed feedrate.
into account the tool width and the groove width (length "l1") so that the machining is as
uniform as possible.
groove contour has been cleared. The only difference between the first depth infeed and
the others is that when the base of the groove is reached, the tool is retracted by the
clearance distance and then moved out of the groove in rapid traverse.
traversed from both sides to the center of the base of the groove at the feedrate specified
in the "Technology Data" screen before the start of the cycle.
diagonally.
Programming and Operating Manual, 06/2009, 6FC5398-6CP10-1BA0
Manual Machine Plus Turning