.. +x
EXAMPLE :
B h?
A
--
F
—.-—
R
z
w
R Rapid traverse
F Speclfled by
F code
8 Retracing amount
(Setttn G# 6205)
Fig. 2.50
Note 1:
The above diagram is of the case
where “R 1“ is not specified. When “R1” is
specified, the retracting amount ( 6 ) for
each approach is ignored and the tool re–
turns to the approach start point, namely
point A in X-axis.
This cycle starts at point A and ends at it.
Notes :
G74 permits the cutting in the direc-
tion of Z-axis,
and G75 in the direction of X-
axis. Therefore,
the cautions in programming
G75 is the same as those of G74.
Refer to 2.8.
25.6 Peck Drilling in Z-axis (G74) .
2.& 25.8 Automatic Threading Cycle (G 76)
This cycle provides automatic cutting of straight
and taper threadings along the angle of thread.
(1) Command format
G76 X(1
t
_.. .
Z(w
N1 GOO X86. Z70. ;
N2 G75 X50. Z40. 16. K4. (DO) FO.2 ;
*
. . .
It. . . K.. . D.. . F(E) . . . A.. . ;
—.
-
T T T =--
I
Lead of thread
First depth of cut (without signs)
Height of thread (without signs)
Distance of tapered section
( radius designation)
Z coordinate of position C
+2
X coordinate of position C
109
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