Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT, Руководство по программированию

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9. Functions to Simplify Programming
100
Function Function Function Function
This command can do a stock removal in facing without groove. The machining path is
A→A'→B
Note
Note
Note Note
1)
G00 or G01 must be used in the finishing program – between P(ns) and Q(nf).
Otherwise, there is an alarm message.
2)
G71 can not be used in MDI mode.
3)
G98 and G99 can not used in the finishing program – between P(ns) and Q(nf).
4)
The direction of
△
x and
△
z is shown in the following figure.
A ′
X(+) Z(-)
X(-) Z(-)
X(+) Z(+)
B
A
X(-)Z(+)
A
′
B
A
A
′
B
A
A
′
B
A
A ′
X(+) Z(-)
X(-) Z(-)
X(+) Z(+)
B
A
X(-)Z(+)
A
′
B
A
A
′
B
A
A
′
B
A
+Z
+X
+X
+Z
Figure 9.17 Direction of the finishing allowance in G71