Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 551)

Single-Pass Turning Cycles
Chapter 22
22-11
G24 Tapered Facing
A G24 block that includes a K-word generates a facing pass that produces
a taper.
Figure 22.8
G24 Face Taper Cutting Cycle
X
K
Z
Cutting feed
Rapid feed
The format for the G24 single-pass cycle to cut a taper on a face is:
G24X__Z__K__;
Where : Is :
X__ the length of cut along the X axis. In incremental mode specify the amount of
feed across the part, in absolute mode specify the coordinate position of the end
point of the cutting stroke. X maybe programmed as either a diameter or radius
value.
Z__ the depth of cut for the Z axis at the end point of the cutting move into the part.
In incremental mode specify the amount of infeed, in absolute mode specify the
coordinate position at the desired depth of cut.
K__ the amount of change in the depth of cut for the Z axis. K is always an
incremental value. Figure 22.9 shows the relationship between the sign of the K
value and the way that the cycle is performed. The control adds the value of K
to the Z depth to determine the start point of the cutting pass.