[modeleng] Re: Parting Off
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Sat, 20 Jan 2007 10:38:36 -0800 (PST)
Clif,
Another question: How far out from the holder are you
letting the parting off blade extend?? Do you have it
set exactly on center? It may work better set a bit
above when it gets down to the small diameter of the
part being cut off.
Al Messer
--- Clif Walker <clif.gwr@xxxxxxxxxxxxxx> wrote:
> Hi Andy and All,
>
> I did have a reasonable speed to start with but
> after the first tip sheared
> off I slowed things down a bit and thought from the
> way that it was cutting
> that things were all right untill the next one went.
> I have a sneaky feeling the trouble is that I use a
> Dickinson quick change
> tool post on a Myford Super 7. I think that when the
> going gets tough as
> they, say it flexes a bit which allows the metal to
> climb onto the bit.
>
> Only one more buffer to make.
>
> Regards
>
> Clif
> ----- Original Message -----
> From: "AndyA" <AndyA@xxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Friday, January 19, 2007 11:20 PM
> Subject: [modeleng] Re: Parting Off
>
>
> > what speed and feed rate are you using? My Q cut
> works best at high speed
> > and moderate feed rates. Depending upon the
> material you may need to
> > regularly withdraw the tool to clear the swarf
> from the cut.
> >
> > Andy
> >
> > ----- Original Message -----
> > From: "Clifton Walker" <clif.gwr@xxxxxxxxxxxxxx>
> > To: <modeleng@xxxxxxxxxxxxx>
> > Sent: Friday, January 19, 2007 8:28 PM
> > Subject: [modeleng] Parting Off
> >
> >
> > Hi All,
> > A short time ago there was a discussion regarding
> the Greenwood Parting of
> > Tool using Q tips.
> > Today not a happy bunny.
> > The first time I got into the Workshop for a week
> after a streaming cold.
> > I was making some buffers for a wagon and parting
> off a bit of 1" dia mild
> > steel. So far the score is 3 broken Q tips, I
> repeat 3 Q tips.
> >
> > Each time the parting off was going fine and after
> the first tip broke I
> > was
> > being extra careful, then each time things
> suddenly things jammed up.
> >
> > Each time it jammed, the tips actually completely
> sheared off.
> >
> > Repeat not happy, there goes a lot of Beer
> vouchers.
> >
> > Regards
> >
> > Clif
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