FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
B–62754EN/01
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
167
The following program generates the cutting path shown in Fig. 14.2.6
(a). This is equivalent to G74 except that X is replaced by Z. Chip
breaking is possible in this cycle, and grooving in X axis and peck drilling
in X axis (in this case, Z, W, and Q are omitted) are possible.
W
d
A
(R)
(F)
i
e
Z
k X
(F)
(F)
(R)
(F)
(R)
(R)
(F)
(R)
U/2
G75R (e) ;
G75X(U)_ Z(W)_ P(
i) Q(k) R(d) F(f) ;
Fig. 14.2.6 (a)
Cutting Path in Outer Diameter / Internal Diameter Drilling Cycle
Both G74 and G75 are used for grooving and drilling, and permit the tool
to relief automatically. Four symmetrical patterns are considered,
respectively.
14.2.6
Outer Diameter /
Internal Diameter
Drilling Cycle (G75)

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