Specifications

_____________________________________________________________________
_____________________________________________________________________
CONCISE GUIDE FANUC 53
4.2 “G72” MATERIAL REMOVAL BY FACING
Function “G72” activates the material removal by facing cycle.
With this function the tool makes increments on axis Z and turning on axis X.
The material removal by facing cycle is always composed of two program blacks.
Example:
N17 …….
N18 G0 X.. Z.. .
N19 G72 W… R…
N20 G72 P… Q… U… W… F…
N21 G0/G1 X… Z…
N22 …
N23 … description of finished profile
N24 …
Where:
• X => Start cycle co-ordinate along axis X
• Z => Start cycle co-ordinate along axis Z
1
st
BLOCK OF G72
• W => Depth of radial cut without sign.
• R => Tool separation in return path at 45° value without sign
2
nd
BLOCK OF G72
• P => Number of block where the rough machining profile starts
• Q => Number of block where rough machining profile finishes
• U => Diametric machining allowance on axis X value indicated with sign
• W => Machining allowance on axis Z value indicated with sign
• F => Work feed