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In this article, we describe how to use G72 stock removal in facing cycle for CNC lathe machines with all details and examples.

G72 Cycle Introduction

G72 cycle is used stock removal in facing for CNC lathe machines.

G72 Cycle Format

G72 W△d Re
G72 Pns Qnf U△u W△u Ff

Parameters

Δd = Depth of cut in Z axis.
e = Tool escape / retract distance.
ns = Sequence number of the first block of the program which specifies the finish figure.
nf = Sequence number of the last block of the program which specifies the finish figure.
Δu = Finish allowance on “X” axis / diameter.
Δw = Finish allowance on “Z” axis / face.
f = Feed

G72 Cycle Examples

G72 CNC Program Example – 1

O0072 ;
T0000 ;
G0 X0. Z-100. M07 ;
T0101
G92 S2500 ;
G96 S180 M03 X105. Z0. ;
G01 X-1. F0.25 ;
G00 X105. Z2. ;
G72 W1.5 R1. ;
G72 P10 Q20 U0.5 W0.25 F0.3 ;
N10 G0 Z-15. ;
G01 X60. Z-10. ;
X30. ;
X25. Z0. ;
N20 X0. ;
G97 S0 T0000 M09 G0 X0. Z-100. ;
M30 ;


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In this article, we described How to use G72 stock removal in facing cycle for CNC lathe machines with all details and examples. For more details;

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