Re: synchronous vs rigid tapping

alphonso wrote:
Discussion in the shop today.

Fanuc G84 tapping = tool comes down to work, feeds in at rate calculated to be correct lead for RPM, spindle reverses and tool comes back out.

Fanuc G84 Rigid Tapping = tool comes down to work, spindle stops and orients itself, feeds down, spindle stops(dwell can be programmed: why?), spindle reverses and tool feeds out. Retract rate can be set by parameter to be as much as 4x the infeed.

For general tapping (a number of average, meaning no more than 3x tap dia, thru holes or blind holes with plenty of room for chips) what would be the advantage of one cycle over the other?



The advantage for 3x the pull out is to reduce cycle time. I can't think of an advantage to dwelling at the bottom of a thread. Maybe to reduce heat before pulling it out at 3x the infeed. Fanuc also has a peck cycle for rigid tapping as well. Pretty cool to watch.
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Relevant Pages

  • Re: synchronous vs rigid tapping
    ... Fanuc G84 tapping = tool comes down to work, feeds in at rate calculated to ... spindle reverses and tool comes back out. ...
    (alt.machines.cnc)
  • Re: synchronous vs rigid tapping
    ... Fanuc G84 tapping = tool comes down to work, feeds in at rate calculated to ... spindle reverses and tool comes back out. ...
    (alt.machines.cnc)
  • Re: synchronous vs rigid tapping
    ... Fanuc G84 tapping = tool comes down to work, feeds in at rate calculated to ... spindle reverses and tool comes back out. ...
    (alt.machines.cnc)
  • synchronous vs rigid tapping
    ... Fanuc G84 tapping = tool comes down to work, feeds in at rate calculated to ... spindle reverses and tool comes back out. ...
    (alt.machines.cnc)
  • Re: synchronous vs rigid tapping
    ... Fanuc G84 tapping = tool comes down to work, ... calculated to be correct lead for RPM, spindle reverses and tool comes ... orients itself, feeds down, spindle stops(dwell can be programmed: ...
    (alt.machines.cnc)