Owner's manual

Milling Fixed Cycles
Chapter 26
26-27
In the G84.1 right-hand solid-tapping cycle, the control moves the axes in
this manner:
1. The tool rapids to the tapping position above the hole location.
2. The threading t ool then rapids to the R point.
3. The control either orients or stops the spindle.
IfaQ-wordwas programmed: the control:
yes orientsthespindle
no stopsthe spindle
4. Tap-in: The clockwise rotation of the spindle ramps up to the
programmed S spindle speed and linear motion of the Z axis moves
synchronously to reach the Z position.
5. Tap-out: The spindle and linear motion reverse to the
counterclockwise direction and retract to the R point.
The tap-out speed is determined by F
*
S unless you programmed D
(tap-out rpm), in which case tap-out speed is F
*
D.
At the R point, spindle rotation has ramped to zero.
6. With G98 active, the cutting tool then accelerates to the rapid feedrate
and retracts to the initial point level.
With G99 active, the c utting tool remains at R point; no movement
occurs.
In single-block mode, the control stops axis motion after phases 1, 2, 3,
and 6 of the cycle (Figure 27.M2).
Important: When it is active, S--Curve Acc/Dec (G47.1) will be applied to
the rapid feedrate portions of the solid--tapping cycle.