Siemens SINUMERIK 840D sl Operating Manual page 536

Programming technological functions (cycles)
10.5 Contour turning - Milling/turning machine
For programs with residual machining, when specifying the name for the file, which includes
the updated blank contour, it must be ensured that this does not have the attached characters
("_C" and double-digit number).
For single-channel systems, cycles do not extend the name for the programs to be generated.
Note
G code program
For G code programs, the programs to be generated, which do not include any path data, are
saved in the directory in which the main program is located. In this case, it must be ensured
that programs, which already exist in the directory and which have the same name as the
programs to be generated, are overwritten.
Input simple
For simple machining operations, you have the option to reduce the wide variety of parameters
to the most important parameters using the "Input" selection field. In this "Input simple" mode,
the hidden parameters are allocated a fixed value that cannot be adjusted.
If the workpiece programming requires it, you can display and change all of the parameters
using "Input complete".
Machining type
You can freely select the machining type (roughing, finishing or complete machining - roughing
+ finishing). During contour roughing, parallel cuts of maximum programmed infeed depth are
created. Roughing is performed to the programmed allowance.
You can also specify a compensation allowance U1 for finishing operations, which allows you
to either finish several times (positive allowance) or to shrink the contour (negative allowance).
Finishing is performed in the same direction as roughing.
Procedure
536
Machine manufacturer
Various defined values can be pre-assigned using setting data.
Please observe the information provided by the machine manufacturer.
1. The part program to be executed has been created and you are in the
editor.
2. Press the "Turning" and "Contour turning" softkeys.
3. Press the "Stock removal" softkey.
The "Stock Removal" input window opens.
Operating Manual, 05/2017, A5E40868956
Milling