Re: Wire EDM

Graham et al,
The ECM idea was always interesting, but recently saw an application for it...

A row of ancient Elox's cutting 14x14x24 forging dies,
which due to the work load are breaking at the rate of 24 or more a day

So there's a lot of flood welding and simple plunge EDM at 200 amps 250uS on 50 us off.
BUT, the tools used ( electrodes) are graphite.

Can graphite be used as the electrode in ECM? ( it conducts right? )

I ask becasue creating graphite tools is easier than creating copper tools.
(in the US we use graphite becasue we know how
and dont use copper because we dont know how,
it's not a matter of dirt or speed, either works well )

And because these machines need to be replaced de to thier age and lack of spares
( and sloppy heads, and... and... )

regards,
TomP