okuma G71, G72 User Manual
...
okuma User Manual
Specifications and Main Features
Frequently Asked Questions
Page 1

I
13-2.
13-2-1.
THREAD
CUTTING
Longitudinal
G71
In
r
mode
COMPOUND
Thread
thread
vl
CYCLE
Cutting
cutting
(G71/G72)
Cycle
cycle
(G71)
as
shown
below
performed:
is
“K
3277-E
Starting
point
thread
[cycle
P-166
of
cutting
H./2
I
.1.
z
\
X
H/2
Format
Description
:
N0001
Final
X:
Z
Z:
Taper
A:
Difference
I:
X
1
G7
of
diameter
coordinate
angle
thread
For
(expressed
taper
Z
each
thread,
in
(I)
A
word:
of
of
radius
thread
end
point
in
use
D
B
between
radius)
either
U
of
H
thread
starting
B
""]D/2
2
£U/
Q
M
J
F
E
L
taper
point
word.
I
or
A
and
point
end
for
t
OKU/AA
MACHINERY
WORKS
LTD.
Page 2

3277-E
P-167
4
B:
Cutter
(0°
D:
Depth
(Expressed
U:
Finishing
(Expressed
;
H:
is
Thread
(Expressed
L:
Chamfering
(Effective
assumed
E
F
:
Same
:
!
J
M:
Q:
Used
(For
The
13-2-5.)
tip
B
<
of
provided.)
not
height
as
in
to
select
details,
number
point
180°;
cut
in
in
allowance
in
in
distance
m
as
the
G33
of
angle
if
0°
the
diameter)
diameter;
diameter)
M23
mode;
distance
mode
thread
refer
threads
first
in
to
B
no
no
final
if
equivalent
cutting
2-3.)
for
command
thread
cutting
finishing
thread
no
L
word
pattern
multi-thread
is
cycle
cutting
is
to
and
provided.)
cycle
is
provided
lead.)
one
mode
thread
performed
le
eye
of
cutting
in
M23
infeed.
if
(refer
a
mode
U
,
to
word
Lis
t
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1
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Page 3

'
'
23-2-2.
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:
Tr
ansverse
In
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Wj
D
I
i
H
fixed
B
Thread
Cycle>
j
i
l
i
I
!
I
Cuttin
thread
A
:
i
&
Compound
cutting
H
Fixed
cycle
Cycle
as
(G72)
show
n
helow
3277~E
is
Per
Point
of
thread
Starting
P-168
formed.
cutting
i
-r~U
Z
X
i
i
i
j
j
!
I
I
I
K
!
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MACHINERY
WORKS
LTD.
Page 4

3277-E
P-169
Format
Description
1
N0001
X:
Z:
A:
K:
Distance
For
B:
Cutter
D:
Depth
W:
Finishing
(No
:
G72
X
coordinate
Z
dimension
Taper
taper
(0°
<.
finishing
of
angle
tip
B
<
of
X
Z
each
of
between
thread,
point
180°;
cut
in
allowance
A
word:
of
cycle
(K)
end
final
starting
angle
0°
the
BDWHLEFJMQ
point
use
if
first
is
thread
either
B
no
performed
of
point
command
thread
thread
cutting
or
A
and
K
is
cutting
if
cycle
point
end
word.
provided.)
a
W
word
cycle
for
taper
is
not
thread
provided.)
H:
Thread
L:
Chamfering
(Effective
assumed
E
F
Same
J
M:
Q:
Used
(For
The
13-2-5.)
;
,
height
as
in
select
to
details,
number
distance
in
to
the
G32
of
M23
distance
mode
thread
refer
threads
in
mode;
to
final
if
equivalent
cutting
2-3.)
for
multi-thread
no
thread
L
word
pattern
cutting
is
one
to
and
thread
cycle
provided
lead.)
mode
in
of
cutting
M23
infeed.
mode,
(refer
is
L
to
1
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HRB
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MACHINERY
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Page 5

I
1
k
13-2-3.
Code
M
the
In
specifying
(1)
M
M32
M33
M34
When
cally
Note
(2)
M
M73
Specifying
block
code
calling
thread
specifying
.....
.....
either
selects
:
If
disregarding
code
specifying
.....
Thread
cutting
straight
zigzag
straight
(not
of
B
word
Infeed
available
these
M32
for
cutting
infeed
infeed
mode.
has
infeed
pattern
Cutting
thread
mode
infeed
M
"0"
of
cutting
and
mode
along
along
with
codes
value,
selected
pattern
1
Mode
and
infeed
thread
thread
specification)
A
is
not
infeed
mode.
Infeed
compound
pattern
face
face
provided,
is
Pattern
fixed
(on
(on
made
should
left
right
the
parallel
cycle,
be
face)
control
3277-E
M
codes
presented.
face)
automati
the
to
P-170
axis
ft
i;
'
'
Infeed
cycle
After
D/2, D/4,
if
as
When
performed
.....
M74
M75
Infeed
Infeed
cycle
fxmslimg
no
formed
Infeed
In
depth
optimum.
determined
3
until
specified.
much
no
until
(W)
U
.
each
of
bit
6.
is
that
as
U
.
pattern
is
word
patterns
thread
cut
made
the
point
and
D/8
the
(W)
word
made
by
"H
-
eye
£
0
is
cutting
is
Whether
by
the
(in
D
by
point
is
reached,
D/8,
And
in
specified
is
2
(in
D
(W)"
U
s
1
niseis
specified,
and
3
determined
pattern
setting
diameter)
D
mm
away
leaving
finishing
the
amount
provided,
diameter)
position
wxxn
4
path
so
3
of
from
infeed
finishing
U
finishing
infeed
finishing
the
of
that
or
pattern
optional
in
(W)
in
is
thread
metal
each
-
"H
amount
cycle,
.
each
reached.
snioizixfc
cycle
removal
4
is
parameter
thread
(W)"
U
changed
is
allowance
infeed
cycle
thread
After
of
U
is
cutting
selected
cutting
position.
is
cutting
W
C
not
cycle,
rate
(bit)
U
is
not
j
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per¬
(W)
made
that,
is
is
No.
as
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l
-
I
§
I
Optional
.....
0
1
OKUMA
parameter
Infeed
Infeed
MACHINERY
(bit)
pattern
pattern
No.
3
4
WORKS
3,
LTD.
bit
6:
is
Page 6

327
7-E
P-171
Infeed
a)
M3
1)
Pattern
,
M34
2
D2
Each
mined
the
cutting
point
"
-faD"
"H
"U(W)"
finishing
designated
2)
D2
In
cutting
i
for
and
points
will
M33
to
of
until
Finally,
carry
not
program
is
’
!
I
b)
3:
is
designated.
(
H2
thread
by
-
the
>
workpiece
point
"/
2D",
until
U(W)".
-
to
carry
cycle
{H2
the
dn
be
the
out
-
thread
point
first
and
dZ
the
is
the
to
high
cutting
finishing
<
each
provide
paths
carried
.
designated.
U(W))2
(H
-
cutting
cutting
OD;
"D",
and
the
path
Finally,
out
is
in
the
(H
U
-
cutting
(=
dl
path,
for
Sn
are
dn
most
appropriate
cutting
minimized.
cutting
out
if
path
point
the
the
"n"th
the
reaches
finishing
not
program.
(W))2
D)
d2
the
determined
point
tool
cycle
U(W)
}
first
second
the
carried
}
path,
and
and
"n"th
accuracy
This
of
.
is
in
which
path
cutting
metal
S2
"H
is
not
the
path
path
the
cycle.
out
assume
for
path,
so
metal
cycle
U(W)"
-
fed
The
designated
cycle
is
the
is
created
at
at
cutting
cutting
tool
if
the
removal
the
then
that
removal
while
is
"U(W)"
by
finishing
is
deter¬
depth
cutting
point
is
fed
The
U(W)
thread
volume
second
cutting
S2
to
volume
the
number
repeated
is
reached.
cycle
in
at
point
is
path,
Sn
to
the
from
of
by
not
SI
is
1)
1
OKUMA
>(H2
D2
Thread
point
being
is
reached.
cutting
Finally,
carry
carried
not
program.
MACHINERY
-
cutting
at
nD"
"f
point
out
H
-
each
until
the
finishing
out
U(W))2
cycle
even
the
In
each
is
calculated
cutting
if
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}
repeated
is
numbered
cutting
numbered
odd
tool
.
cycle
(W)
U
LTD.
is
is
thread
point
as
fed
The
not
with
cutting
of
tool
(
1/2
tfa+1
"U
by
finishing
designated
the
!,H
paths,
(W)"
cutting
path
-
fa-1).
+
cycle
in
U(W)"
the
to
is
the
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.
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3
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Page 7

3277-E
P-172
Infeed
a)
b)
2)
Pattern
,
M3
2
The
values
path,
metal
for
then
Sn
to
volume
number
until
Finally,
out
carried
M33
<
each
{H2
D2
In
cutting
the
for
dn
and
points
numbered
=
even
removal
while
numbered
odd
mined
This
"H
is
The
not
M34
by
cycle
U(W)"
-
fed
finishing
designated
is
following
of
H,
assume
removal
second
the
cutting
will
provide
to
of
paths
cutting
the
the
finishing
out
designated.
is
(H-U
-
thread
point
first
Sn
and
to
d2
paths
number)
volume
number
the
dn
is
is
"U
by
4:
designated.
pattern
D,
the
volume
path,
points
be
the
cutting
cycle.
U
if
cutting
dl
path,
for
dn
are
will
to
paths,
=
1/2
repeated
reached.
(W)"
cycle
in
U(W).
and
thread
d2
most
high
minimized.
is
point
(W)
)
)
(
W
2
D)
(=
d2
the
(n
=
determined
be
provide
of
paths
the
(dn-1
to
is
the
is
cutting
for
SI
and
to
appropriate
cutting
of
tool
The
is
not
i
path,
and
and
"n!,th
even
the
cutting
+
until
Finally,
carry
not
program.
created
In
the
dn
and
dn
are
"H
is
fed
finishing
designated
assume
metal
for
S2
path,
number)
so
most
high
is
minimized.
)
dn+1
the
out
carried
regardless
each
point
first
Sn
determined
accuracy
This
U(W)"
-
by
the
removal
the
then
for
that
appropriate
cutting
point
(n
=
cutting
the
finishing
out
thread
dl
path,
for
the
metal
removal
while
cycle
is
reached.
(W)"
"U
cycle
in
thread
second
cutting
the
S2
accuracy
is
odd
cutting
if
of
cutting
D)
(=
d2
"n"th
so
is
to
is
the
volume
path,
even
Sn
to
metal
the
For
deter¬
number)
point
tool
cycle.
(W)
U
the
and
and
path,
that
the
repeated
carry¬
not
program.
(n
of
S2
SI
.
is
S2
!:
i
:
each
In
point
first
Sn
=
mined
most
dl
path,
for
even
so
appropriate
cutting
mized.
determined
is
number).
point
tool
The
of
is
finishing
designated
OKUMA
D)
"n"th
This
-
by
d2
the
cutting
and
and
for
S2
by
cycle
U(W)"
"U(W)M
thread
(=
the
number)
that
accuracy
For
"H
fed
cycle
the
in
MACHINERY
metal
S2
path,
the
Sn
to
metal
while
numbered
odd
=
dn
is
is
program.
WORKS
path
for
then
even
(n
removal
the
1/2
is
repeated
reached.
to
not
LTD.
,
assume
removal
the
cutting
numbered
=
even
number
paths,
(dn-1
carry
carried
volume
second
number)
volume
+
until
Finally,
out
the
path,
points
paths
to
of
paths
the
dn+1)
finishing
out
thread
SI
will
provide
cutting
(d
the
if
for
and
d2
are
is
=
cutting
the
U(W)
cutting
the
dn
to
deter¬
be
mini¬
odd
cutting
cycle.
is
and
dn
the
high
point
net
(n
Page 8

3277-E
P-173
With
six
cutting
(1)
combining
types
of
cycle
Longitudinal
a)
M32
the
thread
and
M73
+
M
codes
cutting
transverse
Thread
Mode
specifying
cycle
thread
Cutting
cutting
are
available
cutting
Compound
cycle,
Fixed
mode
for
Cycle
-Cutting
and
infeed
longitudinal
respectively.
A
D
is
-
a
U)/D.
point
(H
pattern,
thread
remainder
of
D/2
/
jf
D/2
H/2
!
D/2
AD/
D/4
2
D/8
/
D/16
D/16
U/2
\
b)
M33
M73
+
Mode
i
Cutting
-
:
point
\
(
!
H/2
\W
-///-
'/
D/2
D/2
(D-F/VD
(D4AD)/4
3D/1S
3
D/16
)
4
/
D/16
D/16
U/2
OKUMA
MACHINERY
WORKS
LTD.
Page 9

32
77
—E
P-174
c)
H/2
M32
M74
Mode
Cutting
point
+
D/2
\
\
\
\
\
3
D/2
D/2
D/2
D/2
A
'
:w
U/2
d)
H/2
M33
+
M74
Mode
-
Cutting
:
point
D/2
\
D/2
U
D/2
D/2
AD/
4
AD
4
y/2
:
OKU/A
MACHINERY
WORKS
LTD.
Page 10

3277
S
—
P-175
!
•t;
H/2
e)
M32
+
M75
Mode
(Infeed
Pattern
3,
—
B2
Cutting
1st
2nd
3rd
"n”th
f
>
cycle
cycle
cycle
cycle
H2
point
-
D/2
\fZ
(H
D/2
-
U(w)
v'n
D/2
)
'i
)2
(H-UJ/2
U/2
f)
M3
3
+
!
M75
Mode
(Infeed
-
Pattern
Cutting
3,
point
D2
{
H2
H
/
-
-
(W))2})
U
i
72D/4
1st
2nd
"n"th
cycle
cycle
cycle
yÿD/2
v/nD/2
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U/2
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Page 11

,
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3pK
AW
*
CM
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g)
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\
M32
(Infeed
+
M75
Patern
Mode
3,
S2
D2
S4
<
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V
K
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H2
Cutting
point
sl
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cycle
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"n"th
U(W))2}
-
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cycle
cycle
cycle
2
:
Infeed
or
Cutting
"n"th
CM
CM
rs
x
r:
point
cycle
CM
3277-E
Pattern
CM
CM
/--S
:
x
x
P-176
4)
for
!ÿ'§
f
CM
X
C4
3
h)
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M75
S2
Mode
Pattern
\
D2
3,
Cutting
-{(H2
tool
U(W))2
-
}
dn/2
—
or
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Infeed
Cutting
"n"th
=
1/2
Pattern
point
cycle
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+
4)
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K
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/
cycle
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S4
I
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i
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i
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3rd
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cycle
cycle
cycle
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CM
CM
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CM
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MACHINERY
WORKS
LTD.
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Page 12

3277-E
P-177
'"I
(2)
Transverse
a)
M3
2
+
Thread
M73
Mode
Cutting
Compound
H
Fixed
Cycle
AD
(H
is
-
W)/D.
a
remainder
Cutting
of
point
|
i
if
1
if
D
W
/
/
D/S
/
b)
M33
+
/
\
M73
\
\
D/S
D/4
Mode
H
D
1
D
i
Cutting
i
i
point
!
I
\3V9s(D4AD
/
D/8
I
|
D/8
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LTD.
Page 13

a
mm
mt
M
3277-E
c)
M32
+
M74
Mode
H
.
P-178
|:
d)
W
M33
AD
+
M74
D
Mode
Cutting
D
H
D
D
H
point
I
7
I,
i
Cutting
point
D
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V
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Page 14

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OKUAAA
MACHINERY
WORKS
LTD.
Page 16

r
1
(I
ti
1
;
13-2-4.
Codes
P
(2-Saddle
P
codes
turrets
thread
has
completed
the
to
cycle
Example
0APT2
NI00
N101
N102
N103
N200
N201
N202
N203
in
Specification)
in
A
and
cutting
next
being
:
G71
the
a
compound
B
passes
the
sequence
carried
G13
G00
G71
G14
G00
G71
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at
each
programmed
and
out
Xt
Zt
Xs
Zs
Xa
Za
Zt
Xt
Xs
Zs
Za
Xa
G72
fixed
thread
differ
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I
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waits
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B
S
B
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other
T
D
T
D
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cutting
the
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H
M
H
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completion
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M
F
M
Cycles
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P10
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P10
[P20
synchronize
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first
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P-181
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WORKS
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Page 17

fill
Bill
1
P?=
0M
mm
SB
13-2-5.
Multi-thread
Cycle
thread
the
In
cutting
command
designated
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Example
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phase
=
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cycle
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by
difference
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\
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cutting
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simply
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compound
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is
Loci:
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cycle
automatically
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by
fixed
\
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G32,
designating
thread
number
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calculated
x
120°
120°
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G33,
the
cutting
of
Start
first
Start
third
etc.
phase
cycle,
threads
.
point
thread
Fixed
point
thread
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multi-thread
difference
multi-thread
with
the
for
for
3277-E
Cutting
with
a
command.
Q
the
P-182
thread
a
can
C
be
P-.err.arks
.
Command
1
2.
Omission
3.
In
order
the
amounts
:
multi-thread
of
order
.
range:
of
1st,
of
a
1st,
-
0
command
Q
thread
2nd
9999
...
2nd
is
cutting
"n"th
...
Start
second
regarded
thread.
''n"th
cycle,
thread
point
thread
as
Then,
for
Ql.
cutting
with
the
is
cutting
different
carried
is
out
repeated
infeed
in
the
in
OKU
AAA
MACHINERY
WORKS
I
LTD.
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