Boring (Cycle86) - Siemens SINUMERIK Series Operating Manual

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Programming technological functions (cycles)

10.1 Drilling

Boring (CYCLE86)

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.

If, for example, swiveling of mirroring has been performed with CYCLE800 before machining,

the SPOS command must be adapted so that the spindle position acts synchronously with DX

When lifting, define the amount of lift D and the tool orientation angle α.

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.

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

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

(coordinates of the hole center point).

Operating Manual, 08/2018, 6FC5398-7CP41-0BA0