Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT v4.0 Programming Manual page 111

Example Example Example Example 1 1 1 1
Use G72 to program. The initial point A is (80, 1). The depth of cutting is 1.2mm. The
retraction amount is 1mm. The finishing allowance in the X direction is 0.2mm, and the
finishing allowance in the Z direction is 0.5mm. The dashed line stands for the original part.
Figure 9.24 Outer Diameter Removal in Facing - Example
%3328
N1 T0101
N2 G00 X100 Z80
N3 M03 S400
N4 X80 Z1
N5 G72W1.2R1P8Q17X0.2Z0.5F100
N6 G00 X100 Z80
N7 G42 X80 Z1
N8 G00 Z-53
N9 G01 X54 Z-40 F80
N10 Z-30
N11 G02 U-8 W4 R4
N12 G01 X30
N13 Z-15
N14 U-16
N15 G03 U-4 W2 R2
N16 G01 Z-2
N17 U-6 W3
N18 G00 X50
N19 G40 X100 Z80
N20 M30
9. Functions to Simplify Programming
60
50
40
26
15
R4
R2
107
2×45°