Re: [TCML] Copper Tungsten Alloy

[Brandon Garretson <garretsontech@xxxxxxxxx>]

Midwest Tungsten Service, give them a call.
800-626-0226
www.tungsten.com
They have every alloy.
I bought a foot for about $35 and cut it myself with a diamond blade on my
Dremel.

On Tue, May 1, 2012 at 9:00 PM, Matthew Edwards <matthew.n.edwards@xxxxxxxxx
> wrote:

> Thank you, my interest in this was because it is much cheaper online than
> standard tungsten rod.
>
> Matthew Edwards
>
> On May 1, 2012, at 5:12 PM, Brandon Garretson <garretsontech@xxxxxxxxx>
> wrote:
>
> > It'll burn up a lot faster.
> > I use .250" 97% tungsten and it conducts just fine.
> > After a long run I only need to wipe the carbon off, with that much
> copper
> > you would need to grind the tips and re-adjust more often.
> >
> >
> >
> > On Tue, May 1, 2012 at 3:47 PM, Matthew Edwards <
> matthew.n.edwards@xxxxxxxxx
> >> wrote:
> >
> >> I was wondering if anyone has tried using copper tungsten alloy for
> spark
> >> gap. I have noticed some listed on ebay as grade 50-235 which appears
> to be
> >> 70% tungsten, 30% copper. It seems like it would be a good material to
> use
> >> but I wanted to get some "expert" opinions.
> >>
> >> According to wikipedia;
> >>
> >> CuW alloys are used where the combination of high heat resistance, high
> >> electrical and thermal conductivity, and low thermal expansion are
> needed.
> >> Some of the applications are in electric resistance welding, as
> electrical
> >> contacts, and as heat sinks. As contact material the alloy is resistant
> to
> >> erosion by electric arc. WCu alloys are also used in electrodes for
> >> electrical discharge machining and electrochemical machining.[2]
> >>
> >> There is a chart on this page displaying the properties of the alloy.
> >> Resistivity, etc..
> >> http://en.wikipedia.org/wiki/Copper-tungsten
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