CNC program for the internal threading with G76 threading cycle on fanuc controls 21i/18i/16i.
For an example of external threading with G76 threading cycle read External Thread Cutting with G76 Threading Cycle on Fanuc 21i 18i 16i CNC
Fanuc 21i/18i/16i use two block format of G76 threading cycle.
Fanuc G76 threading cycle has multiple parameters making it difficult to remember, but at the same time those multiple parameters of G76 thread cycle give the cnc programmer/cnc machinist multiple options to control thread cutting, some are listed below.
G76 thread cutting cycle allow cnc machinist to control number of idle cuts, thread run-out, infeed angle.
CNC Program of Internal Threading with G76 Threading Cycle
N17 T101 N18 G54 N19 G97 S800 M3 N20 G0 X25 Z6 M8 N21 G76 P010060 Q100 R0.02 N22 G76 X30 Z-40 P919 Q250 F1.5 N23 G0 X150 Z100
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