Boring (Cycle86) - Siemens SINUMERIK 840D sl Operating Manual

10.1.5

Boring (CYCLE86)

Function
With the "Boring" cycle, the tool approaches the programmed position in rapid traverse,
allowing for the retraction plane and safety clearance. It is then inserted into the workpiece at
the feedrate programmed under F until it reaches the programmed depth (Z1). There is an
oriented spindle stop with the SPOS command. After the dwell time has elapsed, the tool is
retracted either with or without lift of the tool.
Note
If, for example, swiveling or mirroring has been performed with CYCLE800 before machining,
the SPOS command must be adapted so that the spindle position acts synchronously with DX
and DY.
Clamping the spindle
For ShopTurn, the "Clamp spindle" function can be set up by the machine manufacturer.
Lift
When lifting, define the amount of lift D and the tool orientation angle α.
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 248)
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
the cycle call.
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 three
axes.
Turning
Operating Manual, 05/2017, A5E40868721
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Programming technology functions (cycles)
10.1 Drilling
299