Siemens SINUMERIK 840D sl Turning Operating Manual page 618

Programming technology functions (cycles)
10.6 Further cycles and functions
Surface smoothing
For the "High Speed Settings" (CYCLE832) function, there are two ways in which the surface
quality of free-form surfaces can be improved. To smooth the surface, the continuous-path
control is optimized within a defined contour tolerance.
Machining methods
You can choose between the following technological machining operations:
● "Roughing"
● "Semi-finishing"
● "Finishing/speed"
● "Fine finishing/precision"
● "Deselected" (default setting)
Note
Plain text entry
You can enter the parameters in plain text in the "Machining" selection box. Plain text is
generated for the "Machining mode" parameter when the input screen is closed (e.g. _ROUGH
for roughing).
For CAM programs in the HSC range, the four machining types directly relate to the accuracy
and speed of the path contour (see help screen).
The operator/programmer uses the tolerance value to give a corresponding weighting.
Corresponding to the appropriate G commands, the four machining types are assigned to
technology G group 59:
Machining type
Roughing
Semi-finishing
Finishing/speed
Fine finishing/precision
Deselection
In the "Machine" operating area, the G functions that are active in the part program are shown
in the "G functions" window.
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Software option
To smooth contours with the "High Speed Settings" (CYCLE832) function, you re‐
quire the "Top Surface" software option.
Technology G group 59
DYNROUGH
DYNSEMIFIN
DYNFINISH
DYNPREC
DYNNORM
Operating Manual, 06/2019, A5E44903486B AB
Turning