
2 - 40 Basic NC G Codes
704-0115-307
WinMax Lathe NC Programming
G84 - Right Hand Tapping
G84 sets right-hand tapping as the modal drill cycle.
Default—No
Modal—Yes
M74 is required for the optional Rigid Tapping.
Cancels G74, G80, G81, G82, G83, G98, G99
The tool motion for this cycle is described below. The feedrate and spindle override
controls are forced to 100% are disabled while this cycle is active.
The drawing below shows right-hand tapping tool motion:
1. Tool rapids to R plane.
2. Tool feeds CW to the programmed depth.
3. Spindle reverses direction (CW).
4. If G94 is active, the axis will dwell for P seconds; if G95 is active, the axis will
dwell for P revolutions.
5. Tool feeds to R plane.
6. Spindle reverses direction (CCW).
Figure 2–26. G84 Right Hand Tapping
To stop tool motion when the tap is in the bore, either press the
Emergency Stop button or use Retract.
The control will not respond to a motion-stop command until the tool
returns to the reference plane.
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Страница 98: ...2 50 Basic NC G Codes 704 0115 307 WinMax Lathe NC Programming...
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