G83 Normal Peck Drilling Canned Cycle (Group 09)
F Feedrate in inches (or mm) per minute I Size of first cutting depth J Amount to reduce cutting depth each pass K Minimum depth of cut L Number of holes if G91 (Incremental Mode) is used P Pause at end of last peck, in seconds (Dwell) Q Cut depth, always incremental R Position of the R plane (position above the part) X X-axis location of hole Y Y-axis location of hole Z Position of the Z-axis at the bottom of hole
If I, J, and K are specified, the first pass will cut in by the amount of I, each succeeding cut will be reduced by amount J, and the minimum cutting depth is K. Do not use a Q value when programming with I,J,K. If P is specified, the tool will pause at the bottom of the hole for that amount of time. The following example will peck several times and dwell for 1.5 seconds:
G83 Z-0.62 F15. R0.1 Q0.175 P1.5
The same dwell time will apply to all subsequent blocks that do not specify a dwell time.
Setting 52 changes the way G83 works when it returns to the R plane. Usually the R plane is set well above the cut to ensure that the peck motion allows the chips to get out of the hole. This wastes time as the drill starts by drilling “empty” space. If Setting 52 is set to the distance required to clear chips, the R plane can be put much closer to the part being drilled. When the chip-clearing move to R occurs, the Z axis distance above R is determined by this setting.
Program Example Description T2 M06 (Tool #2 is a 0.3125” stub drill) G90 G54 G00 X0.565 Y-1.875 S2500 M03 G43 H02 Z0.1 M08 G83 Z-0.720 Q0.175 R0.1 F15. (Drill point is 1/3 of the drill diameter) X1.115 Y-2.750 X3.365 Y-2.875 X4.188 Y-3.313 X5.0 Y-4.0 G80 G00 Z1.0 M09
G83 Normal Peck Drilling Canned Cycle