Manual

Drilling Cycles
Chapter 26
26-10
In the G81 drilling cycle, the control moves the axes in this manner:
1. The tool rapids to the initial point level above the hole location.
2. The drilling tool then rapids to the R point level, slows to the
programmed cutting feedrate and begins the drilling operation.
3. The drilling tool continues to drill at the programmed feedrate until it
reaches the depth of the hole as programmed with the Z-word.
4. The control retracts the drilling tool at a rapid feedrate to the initial
point level as determined by G98.
When the single block function is active, the control stops axis motion
after steps 1, 2 and 4.
The format for the G82 cycle is:
G82X__Z__R__P__F__L__;
Where : Is :
X specifies location of thehole.
Z defines the holebottom.
R defines the Rpoint level.
P defines the dwellperiod at holebottom.
F defines the cuttingfeedrate.
L defines the numberof times thedrilling cycleis repeated.
See section 27.3 for a detailed explanation of these parameters.
Important: The programmer or operator must start spindle or live tool
rotation.
(G82): Drill Cycle,
Dwell/Rapid Out