[TheForge] Re: Burning Metal

Wed Nov 5 07:58:00 2003

Kevin,   Cute...........however my neighbors share the same thoughts at
times when the 500 amp carbon arc goes on and the lights in the neighborhood
dim......   :-)

Ralph
----- Original Message -----
From: "Kevin Donahoe" <[email protected]>
To: <[email protected]>
Sent: Wednesday, November 05, 2003 7:06 AM
Subject: RE: [TheForge] Re: Burning Metal

> Ralph,
>
> If you're going to try some of this, let the rest of us know, so those of
us
> to the south can tell if it's the Aurora Borealis... or Bear Hill!
>
> Kevin
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Ralph Sproul
> Sent: Tuesday, 04 November, 2003 4:54 PM
> To: [email protected]
> Subject: Re: [TheForge] Re: Burning Metal
>
>
> Hi Pete, That's an interesting idea - I've never tried that, but would
like
> to.  Do you use something light like 1/4" or does it take 1/2 to keep the
> oxidizing stream going?
>
> Ralph
>
> ----- Original Message -----
> From: "Peter Fels And Phoebe Palmer" <[email protected]>
> To: <[email protected]>
> Sent: Monday, November 03, 2003 9:13 PM
> Subject: Re: [TheForge] Re: Burning Metal
>
>
> > One can use a sacrifice piece of steel to sustain a torch cut  in cast
> > iron..carbon isn't the critical factor..plain iron seems to be...PF
> >
> > Andy Gladish wrote:
> >
> > >>I think if the carbon content was the accelerating factor, cast
> > >>iron should
> > >>cut easily.
> > >>The  best I can do on cast iron with an O/A torch is a very sloppy
cut.
> > >>My plasma torch however cuts it easily.
> > >>chuck-
> > >>
> > >>
> > >
> > >I think that what is happening when I use an O/A torch to cut cast iron
> is
> > >that the preheat is melting the metal and the oxygen jet is blowing it
> > >aside. Way different from the sharp, clean cut (burn) I get with steel
> when
> > >things are set up correctly.
> > >So, a torch will 'cut' things that it can't 'burn'.
> > >Andy G.
> > >
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