Execute A Roughing Cycle - Siemens SINUMERIK 808D Programming And Operating Manual

Manual machining
3.4 Manual machining using cycles (functions)
3.4.7.8

Execute a roughing cycle

Rough cutting
Starting from the current axis position, the rough cutting sequence is as follows:
1. Diagonal approach to the start position calculated in the cycle in both axes.
2. Infeed in the infeed axis (transverse axis or longitudinal axis, depending on whether
3. Execution of the paraxial roughing motion in the cutting axis until the unmachined contour
4. Withdrawal from the material in the infeed axis by the infeed distance.
5. Retraction by the clearance distance below 45° in both axes.
6. Return in the cutting axis to the start position calculated in the cycle.
7. New infeed in the infeed axis by the infeed depth calculated in the cycle.
Finish cutting
When the final rough cut is completed, the contour is finish cut with the following motions:
1. Traverse in the infeed axis to the finished dimension for the contour, corrected by the
2. Infeed in both axes (below 45°) to the contour start point.
3. Execution of the finishing motion along the parameterized contour.
4. Retraction by the clearance distance below 45° in both axes.
5. Return in the cutting axis to the start position calculated in the cycle.
6. Finally, the original position of the axes before the start of machining is approached
diagonally.
See also
Principle operating sequence (Page 38)
86
The safety clearance and finishing allowance are taken into account.
"Face" or "Longitudinal" was selected).
The infeed is calculated within the cycle as follows:
– The input value "m1" is not exceeded.
– The infeed quantity is guaranteed to remain constant until the unmachined contour is
reached (taking finishing allowance into account).
is reached.
The finishing allowance is taken into account.
All roughing cuts are performed one after another, as described above.
clearance distance.
Programming and Operating Manual, 12/2012, 6FC5398-3DP10-0BA0
Manual Machine Plus (Turning)