Sinumerik CYCLE81 Drilling, Centering cycle for CNC machinists who work on CNC lathe/turning machine with Siemens Sinumerik CNC control.
Drilling cycle CYCLE81 works on Sinumerik 840D, Sinumerik 808D and similar cnc controls.
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Sinumerik CYCLE81 Drilling Cycle for CNC Mill
For CNC machinists who work on CNC Mill with Siemens Sinumerik 840D/808D CNC controls Drilling Cycle CYCLE81 is briefly explained here
Sinumerik 840D CYCLE81 Drilling Centering Cycle Programming
Sinumerik Turning/Lathe Drilling Centering Cycle CYCLE81
With Sinumerik CYCLE81 the tool drills at the programmed spindle speed and feed-rate to the specified final drilling
depth.
CYCLE81 Drilling Cycle – Sinumeirk 840D Turning
CYCLE81 (RTP, RFP, SDIS, DP, DPR)
RTP – Return plane or Retraction plane (absolute)
RFP – Reference plane (absolute)
SDIS – Safety distance (enter without sign)
DP – Final drilling depth (absolute)
DPR – Final drilling depth relative to reference plane (enter without sign)
Drilling depth can be given either as
Absolute depth (DP) or
Relative to reference plane depth (DPR).
Sinumerik Turning/Lathe Drilling Centering Cycle CYCLE81 Working
As the above figure shows
1: drill will rapidly reach the start point (RFP + SDIS).
2: with given feed-rate will complete final drilling depth (DP).
3: after completing the depth the tool will retract rapidly to Return plane (RTP)
