CNC 8035 - Programming manual - Fagor Automation

Programming manual
9.
CANNED CYCLES
G86. Longitudinal threading canned cycle
CNC 8035
·T· MODEL
(SOFT V16.3X)
·198·
C5.5
Defines the thread’s pitch.
With a positive sign if the pitch is programmed along the taper.
With a negative sign if the pitch is programmed along the associated axis.
If programmed with a 0 value, the CNC will display the corresponding error message.
J5.5
Exit from the thread. It defines at what distance from the final point (R, Q), along the Z axis, starts
the withdrawal from the thread.
If programmed with a positive value, the tool moves directly from point "J" to the safety distance
Xs, Zs.
If programmed with a negative value, the tool moves from point "J" to the end of the thread (R,
Q) and then to the safety distance Xs.
If not programmed, a value of 0 is assumed (blind thread).
The third set of gains and accelerations for the axes and the spindle may be used to improve
the adjustment and the machining of the exit from blind threads. If the thread exit is a short
distance, any acceleration set may be used or even remove the acceleration without getting the
error "insufficient acceleration while threading".
We recommend to use low or no acceleration.
A±5.5
J > 0 J < 0
Defines the penetration angle of the tool. It is referred to the X axis and if not programmed, a value
of 30° will be taken.
If A=0 is programmed, the thread will be made with radial penetration.
If the value assigned to parameter “A” is half the tool angle, the penetration will be done rubbing
the thread’s flank.
If A is programmed with a negative value, the penetration will be done alternating the flanks of
the thread.