Re: [TCML] Tungsten

["Jon Danniken" <danniken@xxxxxxxxxxx>]

Interesting, thanks Carl.  It looks like there is a product marketed under 
the name "Elkonite"; the various grades are mentioned here:

http://www.cmwinc.com/welding-materials.php

And here is a company that sells some of it, along with tungsten, in varying 
diameters of round bars, in 8" sections:

http://www.spotweldingconsultants.com/tungsten.html

No idea on pricing for those materials, though, but I like the idea of a 
more easily machinable electrode with the wear characteristics of W.

Jon




Carl Noggle wrote:
> If you do a Google search on "copper tungsten alloy" you will get
> mondo pages for mfgs.  I don't remember where I got mine.  You only  need 
> to
> cut off about 1/2 inch to make the actual electrodes, then press them
> onto threaded brass tubing to adjust the gap.
>
> > Carl Noggle wrote:
> >
> > > You can get alloys of copper and tungsten, in the range of 10% to
> > > 20% copper, which machine almost as well as free-machining brass. They 
> > > perform as well as pure W.  My main gap has two hollow
> > > electrodes made from 1 1/4 diameter stock with a 1/2 inch hole for
> > > forced air (blowing radially inward).  After about 20 years of use,
> > > I can't see any sign of wear.  Actually, brass does quite well also.

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