Re: Coil Meeting...

• To: tesla-at-pupman-dot-com
• Subject: Re: Coil Meeting...
• From: Chip Atkinson <chip-at-pupman-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 29 Jun 1999 05:28:02 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Just to split hairs, the welding rods are tungsten _metal_, not the
carbide.  The welding rods are for TIG welding and have to conduct
electricity through them so that an arc can be created between the
workpiece and the welding torch.

Chip

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 Chip Atkinson 
 http://www.pupman-dot-com 
 --- If I can't fix it, I can fix it so it can't be fixed --
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

On Mon, 28 Jun 1999, Tesla List wrote:

> Original Poster: Finn Hammer <f-hammer-at-post5.tele.dk> 
> 
> Tesla List skrev:
> > 
> > Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
> 
> snip
> 
> > I wonder if the tungsten has a higher resistance that causes
> > extra heating?
> 
> I asked the chief metallurgist at "Danit", a danish sinter metal
> factory, about this recently, He said the conductivity of Tungsten
> carbides is in the range of 1/10 to that of copper.
> 
> I take that as an argument for brazing short pieces of the welding rod
> to copper sticks, and then have them machined afterwards.
> 
> Cheers, Finn
> 
> A very big snip :-)
> > 
> >         Terry
> 
> 

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