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GSK980TDi Turning CNC System User Manual
122
Ⅰ
Programming
Δ
i,
Δ
k define the coordinates offset and its direction of roughing;
Δ
u,
Δ
w define the coordinate
offset and the cut-in direction in finishing, and their sign symbols are as follows Fig. 3-32: A is tool
start-up point, B
→
C for workpiece contour, B’
→
C’ for roughing contour and B’’
→
C’’ for finishing path.
G73 code cutter radius compensation function:
Refer to the parital description of the G71 code cutter radius compensation.
G73 code machining example:
starting point
(200,10)
1
0.5/2
0.3
0.5/2
0.3
Fig.3-78
1
）Δ
i
<
0
Δ
k>0
，
△
u
<
0
Δ
w>0
；
2
）Δ
i>0
Δ
k>0
，
△
u>0
Δ
w>0
；
A
’
B
A
Z
X
Z
X
B
’
A
’’
B
’’
C
C
’
C
’’
A
A
’
A
’’
B
B
’
B
’’
C
C
’
C
’’
3
）Δ
i
<0 Δ
k
<0， △u<0
Δ
w<0；
4
）Δ
i
>0 Δ
k
<0， △u>0
Δ
w<0；
Z
X
Z
X
A
A
’
A
’’
C
C
’
C
’’
B
B
’
B
’’
A
’
B
’
B
’’
C
’
A
A
’’
B
C
C
’’
