Table of Contents
Advertisement
MITSUBISHI CNC
III Functional Specifications
(5) Face cutting-off cycle (G74)
When the slotting end point coordinates, cut depth, cutting tool shift amount, and cutting tool relief
amount at the cut bottom are commanded, automatic slotting is performed in the end face direction
of a given bar by G74 fixed cycle. The machining program is commanded as follows.
G74 Re ;
G74 Xx1/(Uu1) Zz1/(Ww1) Pi Qk Rd Ff ;
Re
: Retract amount e (when X/U, Z/W command is not given) (Modal)
Xx1/Uu1
: B point coordinate (absolute/incremental position)
Zz1/Ww1
: B point coordinate (absolute/incremental position)
Pi
: Tool shift amount (radius designation, incremental position, sign not required)
Qk
: Cut depth k (radius designation, incremental position, sign not required)
Rd
: Relief amount at cut bottom d
Ff
: Feed rate
z
i
i
i
i
B
(S) Start point
III - 220
(If sign is not provided, relief is made at the first cut bottom. If minus sign is provided,
relief is made not at the first cut bottom but made at the second cut bottom and later.)
w
12
e
2
3
4
6
7
8
d
k
(S)
1
9 and 12 just before the last cycle are
5
executed with the remaining distance.
11
u/2
2, 4, 6, 8, 10, 11 and 12 are executed
at the rapid traverse feed rate.
9
10
x
Advertisement
Table of Contents
