Re: [CAD_CAM_EDM_DRO] Re: EDM spark control system

----- Original Message -----
From: "Jon Elson" elson@...
> >
> > Is Kerosene still the most common dielectric fluid for EDM?
>
> This may be similar to my favorite - alum-tap. A thin, oil-based clear
> liquid that evaporates very slowly. It is flammable, however. most
people
> suggest water! you have to keep the voltage down around 30 or the
> water starts to electrolyze.
>

I would advise against using flammable liquids for a dielectric - from
personal experience!!!!! ;o{

I haven't tried again since I set most of me workshop alight some time ago
but one of the best options I have seen seems to be a 50/50 mix of
Antifreeze (glycol) and water. If you use plain water it must be de-ionised.

Ian
--
Ian W. Wright
Sheffield UK
www.iw63.freeserve.co.uk