298 ISO Programming
4.22 Drilling and Boring Cycles
Tapping G36—Single path
G36 cuts axial/radial threads using driven or stationary tools.
Depending on X/Z, G36 decides whether a radial or axial thread will be
machined.
Move to the starting point before G36. G36 returns to the starting
position after having cut the thread.
Type of taps:
Stationary tap: Main spindle and feed drive are synchronized.
Driven tap: Driven tool and feed drive are synchronized.
Example: G36
. . .
N1 T5 G97 S1000 G95 F0.2 M3
N2 G0 X0 Z5
N3 G71 Z-30
N4 G14 Q0
N5 T6 G97 S600 M3
N6 G0 X0 Z8
N7 G36 Z-25 F1.5 B3 [tapping]
. . .
Parameters
X Final point of axial hole (diameter value)
Z Final point of radial hole
F Feed per revolution (thread pitch)
B Slop. length (run-in length) for synchronizing spindle and feed
drive
S Return speed (default: Tapping speed)
Cycle stop interrupts the tapping operation.
Cycle start resumes the tapping operation.
Use the feed rate override function for speed changes.
Spindle override is not effective.
Use a floating tap holder if the driven tool is not
controlled, e.g. by a ROD encoder.
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