Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 588)

Compounding Turning Routines
Chapter 24
24-24
Example 24.5
Case 1 G74 Rough Facing Routine
N011 G00X80.Z130.;
N012 G74P14Q19U6.W6.I10.K10.D10.R8.F10.S60;
N013 M30;
N014 Z40.;
N015 X60.;
N016 X40.Z60.;
N017 Z80.;
N018 X30.Z90.;
N019 Z110.;
N020 X20.Z130.;
Figure 24.19
Results of Example 24.5
Cutting feed
Rapid feed
80
Z
X
60
40
30
20
(start
point)
(K)
10
(D)
20
(D)
20
(D)
20
8
8
0 40 60 80 90 110 130
In Figure 24.19, the final pass over the workpieces does not remove all
material from the final contour. A finishing pass is still required (typically
a G72) to remove the finish amounts U and W.