[TCML] Tungsten

[Carl Noggle]

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.







>    Where?
>
> Ed
>
> 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.
>>
>> ---Carl 
>
>
>
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