Fagor 8025 GP, Operating Manual

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76 8025/8030 CNC PROGRAMMING MANUAL
6.23 FUNCTION "G64". MULTIPLE ARC PATTERN MACHINING CYCLE
By means of this function, it is possible to perform circular movements.
This way, if a canned cycle is active when defining this function, the CNC will carry
out the programmed movements and it will execute the canned cycle at each new
position.
Therefore, it is possible to perform drilling, threading operations, etc. in an arc
pattern.
The programming format for this cycle is as follows:
G64 X Y B I C F Q U
R A B K
K I
The CNC takes as starting point, the one used to define the multiple machining cycle.
The center of the arc may be defined in cartesian (XY) or polar coordinates (RA)
X Defines the distance from the starting point to the center along the abscissa axis.
Y Defines the distance from the starting point to the center along the ordinate axis.
With parameters X and Y the center of the circle is defined in the same way that
I and J do it in circular interpolations (G02, G03).
R Defines the distance from the starting point to the center.
A Defines the angle of the line joining the starting point and the center with respect
to the X axis.
The machining positions are set by combining 2 of the parameters "B, I and K".
B Defines the total angular travel and it is given in degrees.
I Defines the angular step between machining operations.
K Defines the total number of machining operations along the arc including the
cycle defining point.
It must be borne in mind that the cycle defining point has already been machined.