Siemens SINUMERIK 840D sl Operating Manual page 242

Creating a ShopTurn program
7.8 Tool, offset value, feedrate and spindle speed (T, D, F, S, V)
Converting the spindle speed (S) / cutting rate (V) when milling
As an alternative to the cutting rate, you can also program the spindle speed.
For the milling cycles, the cutting rate (m/min) that is entered is automatically converted into
the spindle speed (rpm) using the tool diameter - and vice versa.
Machining
When machining some cycles, you can choose between roughing, finishing, or complete
machining. For certain milling cycles, finishing edge or finishing base are possible.
● Roughing
● Finishing
● Edge finishing
● Base finishing
● Complete machining
● machining step
242
One or more machining operations with depth infeed
Single machining operation
Only the edge of the object is finished
Only the base of the object is finished
Roughing and finishing with one tool in a
If you want to rough and finish using two different tools, you must call the machining cycle
twice (1st block = roughing; 2nd block = finishing). The programmed parameters are
retained when the cycle is called for the second time.
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Turning