Execute A Roughing Cycle - Siemens SINUMERIK 808D User Manual

References
For more information on the machined contour function, see Section "Defining a start point" of the SINUMERIK
808D/SINUMERIK 808D ADVANCED Programming and Operating Manual (Turning).
Rather than the auxiliary chart, this function displays the entered contour section.
4.4.7.8

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.
The safety clearance and finishing allowance are taken into account.
2. Infeed in the infeed axis (transverse axis or longitudinal axis, depending on whether the planar or longitudinal cutting
direction 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).
3. Execution of the paraxial roughing motion in the cutting axis until the unmachined contour is reached.
The finishing allowance is taken into account.
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.
All roughing cuts are performed one after another, as described above.
68
Programming and Operating Manual (Manual Machine Plus (MM+), Turning)
01/2017