Siemens SINUMERIK 840D sl Operating Manual page 286

Programming technology functions (cycles)
8.1 Drilling
Lift
For "lift off contour", the retraction distance D and the tool orientation angle α can either be
defined via machine data or in the parameter screen. If both parameters are pre-assigned
via machine data, they do not appear in the parameter screen.
Note
The "Boring" cycle can be used if the spindle to be used for the boring operation is
technically able to go into position-controlled spindle operation.
See also
Clamping the spindle (Page 231)
Approach/retraction
1. The tool moves with G0 to safety clearance of the reference point.
2. Travel to the final drilling depth with G1 and the speed and feedrate programmed before
3. Dwell time at final drilling depth.
4. Oriented spindle hold at the spindle position programmed under SPOS.
5. With the "Lift" selection, the cutting edge retracts from the hole edge with G0 in up to
6. Retraction with G0 to the safety clearance of the reference point.
7. Retraction to retraction plane with G0 to drilling position in the two axes of the plane
Procedure
286
Machine manufacturer
Please refer to the machine manufacturer's specifications.
the cycle call.
three axes.
(coordinates of the hole center point).
1. The part program or ShopTurn program to be processed has been
created and you are in the editor.
2. Press the "Drilling" softkey.
3. Press the softkey "Boring" for G code.
- OR -
Operating Manual, 03/2013, 6FC5398-8CP40-3BA1
Turning