Siemens SINUMERIK 840DE sl Commissioning Manual page 556

Technologies and cycles
21.5 Turning
SD55587 $SCS_TURN_CONT_MIN_REST_MAT_AX1
50
Example: If the SD is set to 50% and the final machining allowance is 0.5 mm, any residual material less
than 0.25 mm is not removed with the residual machining – but is removed during finishing. If during a
machining step, less residual material is present than defined in the SD, the error message "No material
present" is issued. This means that this residual material roughing step can be omitted because no
machining is performed.
SD55588 $SCS_TURN_CONT_MIN_REST_MAT_AX2
50
As the tool bends during plunge turning, the tool cannot travel right up to the contour during
stock removal. The lateral distance to the last cut by which the next cut is shortened is specified
in the following channel-specific cycle setting data.
SD55595 $SCS_TURN_CONT_TOOL_BEND_RETR
0.1
542
The roughing step for residual machining is not executed, if the material to be removed is
less than 50% of the finishing allowance. The material is only removed when finishing.
The roughing step for residual machining is not executed, if the material to be removed is
less than 50% of the finishing allowance. The material is only removed when finishing.
0.1 mm or 0.1 inch retraction distance
Limit value during contour turning for
removal of residual material in the di‐
rection of axis 1 (for G18 Z).
This also applies to residual machining
– stock removal, grooving and plunge
turning.
Limit value during contour turning for
removal of residual material in the di‐
rection of axis 2 (for G18 X).
This also applies to residual machining
– stock removal, grooving and plunge
turning.
Retraction distance because of tool
bending
Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
SINUMERIK Operate (IM9)