Re: synchronous vs rigid tapping
- From: Bad Bob <bob@xxxxxxx>
- Date: Fri, 30 Jun 2006 19:13:17 GMT
On 29 Jun 2006 20:07:42 -0700, "bytecolor" <bytecolor@xxxxxxxxx>
wrote:
Bill Roberto wrote:
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.
I wonder if the outfeed is adjustable on a Haas VMC this way. I've not
noticed it just skimming through the parmeters. I use it every time I
tap on my Mazak M-Plus mill (H300 =300%). We've got a large lot of
simple tapped blocks comming up on the Haas.
There is a SETTING don't remember the number.
Look for TAP RETRACT SPEED or something similar.
.
- References:
- synchronous vs rigid tapping
- From: alphonso
- Re: synchronous vs rigid tapping
- From: Bill Roberto
- Re: synchronous vs rigid tapping
- From: bytecolor
- synchronous vs rigid tapping
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