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Tungsten electrode wear



Original poster: "S & J Young" <youngs-at-konnections-dot-net> 

Spark gappers,

There is a trend for welders to use lathanated tungsten welding electrodes
to get away from the slight radioactivity of thoriated rods.  The lathanated
rods allegedly wear slower than the pure tungsten rods.  Does anyone have
RSG experience with both kinds to know which composition of tungsten erodes
less in spark gap duty?

Thanks,
--Steve Y.

P.s. innovative ideas for securing rods that extend from both sides of a RSG
disk would be appreciated.