
13. FUNCTIONS TO SIMPLIFY PROGRAMMING
13.1 Canned Cycles (G73, G74, G76, G78, G79, G80 to G89)
13. FUNCTIONS TO SIMPLIFY PROGRAMMING
13.1
Canned Cycles (G73, G74, G76, G78, G79, G80 to G89)
A canned cycle simplifies the program by using a single block with a G code to specify
the machining operations usually specified in several blocks. Table 13.1 lists canned
cycles.
Table 13.1 Ca
wed Cycles
Operation at the
bottom of a hole
Retraction
( +X direction)
Drilling
G ‘Ode ( -X direction)
Canned cycle
Intermittent
feed
High-speed peck
drilling cycle
Rapid traverse
Left-hand tapping
cycle
Dwell + Spindle CW / G74
Cutting feed Cutting feed
Fine boring cycle
Oriented spindie
stop
Rapid traverse
Cancel
Drilling cycle,
spot drilling
cycle
Rapid traverse
Drilling cycle
counter boring
cycle
Dwell
Rapid traverse
Peck drilling cycle Rapid traverse G83
G84
G85
intermittent
feed
Cutting feed
Cutting feed
Tapping cycle
Dwell-, Spindie CCW
Cutting feed
Boring cycle
Cutting feed
Boring cycle
G86
G87
G88
G89
Spindle stop
~ Rapid traverse
Back boring cycie Spindle CW
Rapid traverse
Cutting feed
Cutting feed
Cutting feed
Boring cycle
Manual
Dwell + spindle stop
Boring cycle
Dwell
Cutting feed
i -s;n