Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 560)

Grooving/Cutoff Cycles
Chapter 23
23-6
Figure 23.4
Results of G76 Grooving Cycle Example
Z
6.5 5.3 3.6
I=-2.8
K=-0.8
e
2.0
4.8
7.6
9.4
X
The G77 O.D. & I.D. grooving cycle is typically used to cut multiple
grooves in a workpiece or as a cut off cycle. When the cycle is performed
the groove or cutoff is cut by infeeding the tool into the workpiece in steps
to allow the removal of chips. The initial groove width (or width of
material removed during the infeed) is determined by the tool dimensions.
The first groove is cut from the Z coordinate position of the tool prior to
the execution of the G77 block.
23.2
O.D. & I.D. Grooving Cycle
(G77)