
B-63944EN-1/02 PROGRAMMING 4.FUNCTIONS TO SIMPLIFY PROGRAMMING
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4.2.2 Stock Removal in Facing (G72)
This cycle is the same as G71 except that cutting is performed by an
operation parallel to the second axis on the plane (X-axis for the ZX
plane).
Format
ZpXp plane
G72 W(∆d) R(e) ;
G72 P(ns) Q(nf) U(∆u) W(∆w) F(f ) S(s ) T(t ) ;
N (ns) ;
...
N (nf) ;
YpZp plane
G72 V(∆d) R(e) ;
G72 P(ns) Q(nf) V(∆w) W(∆u) F(f ) S(s ) T(t ) ;
N (ns) ;
...
N (nf) ;
XpYp plane
G72 U(∆d) R(e) ;
G72 P(ns) Q(nf) U(∆w) W(∆u) F(f ) S(s ) T(t ) ;
N (ns) ;
...
N (nf) ;
∆d : Depth of cut
The cutting direction depends on the direction AA'. This
designation is modal and is not changed until the other
value is designated. Also this value can be specified by
the parameter (No. 5132), and the parameter is changed
by the program command.
e : Escaping amount
This designation is modal and is not changed until the
other value is designated. Also this value can be
specified by the parameter (No. 5133), and the
parameter is changed by the program command.
ns : Sequence number of the first block for the program of
finishing shape.
nf : Sequence number of the last block for the program of
finishing shape.
∆u : Distance of the finishing allowance in the direction of the
second axis on the plane (X-axis for the ZX plane)
∆w : Distance of the finishing allowance in the direction of the
first axis on the plane (Z-axis for the ZX plane)
f,s,t : Any F , S, or T function contained in blocks ns to nf in
the cycle is ignored, and the F, S, or T function in this
G72 block is effective.
The move command between A and B is specified in the
blocks from sequence number ns to nf.