Programming technological functions (cycles)
8.1 Drilling
Milling
276 Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Approach/retraction - CYCLE84 - without compensating chuck
One cut:
1. Travel with G0 to the safety clearance of the reference point.
2. Spindle is synchronized and started with the programmed speed (dependent on %S).
3. Tapping with spindle-feedrate synchronization to Z1.
4. Spindle stop and dwell time at drilling depth.
5. Spindle reverse after dwell time has elapsed.
6. Retraction with active spindle retraction speed (dependent on %S) to safety clearance
7. Spindle stop.
8. Retraction to retraction plane with G0.
Approach/retraction during stock removal
1. The tool drills at the programmed spindle speed S (dependent on %S) as far as the first
infeed depth (maximum infeed depth D).
2. Spindle stop and dwell time DT.
3. The tool retracts from the workpiece for the stock removal with spindle speed SR to the
safety clearance.
4. Spindle stop and dwell time DT.
5. The tool then drills with spindle speed S as far as the next infeed depth.
6. Steps 2 to 5 are repeated until the programmed final drilling depth Z1 is reached.
7. On expiry of dwell time DT, the tool is retracted with spindle speed SR to the safety
clearance. The spindle stops and retracts to the retraction plane.
Approach/retraction during chipbreaking
1. The tool drills at the programmed spindle speed S (dependent on %S) as far as the first
infeed depth (maximum infeed depth D).
2. Spindle stop and dwell time DT.
3. The tool retracts by the retraction distance V2 for chipbreaking.
4. The tool then drills to the next infeed depth at spindle speed S (dependent on %S).
5. Steps 2 to 4 are repeated until the programmed final drilling depth Z1 is reached.
6. On expiry of dwell time DT, the tool is retracted with spindle speed SR to the safety
clearance. The spindle stops and retracts to the retraction plane.
Machine manufacturer
Please refer to the machine manufacturer's specifications.
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