I read it to be Electrical Discharge Machining.
http://www3.telus.net/public/aschoepp/edm.htmlRegards,
S.Ramamurthy
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
> On Fri, 01 Jul 2005 06:48:17 +0200, mikegw20 <mikegw20@h...> wrote:
>
> > EDM? I had a quick search in the messages and I get the feeling
it is
> > some sort of electrode ablative process. Does someone have a
link or
> > two that spells it out so I don't have to pester you with silly
> > questions.
> > Thanks
> > Mike
>
>
> Yes it is electrodynamc milling.
> Basically a series of sparks eordes the workpiece.
>
> It is done under a fluid (water or special oil), and there are
many
> different methods (wire EDM, sinking, ...).
>
> The advantage over mechanical milling would be way better
resolution, no
> expensive cutters to buy that dull quickly.
> No cutting into the epoxy, the result wold look just like
chemically
> etched.
>
> I've seen a few machines in a factory and was intrigued by it ever
since.
>
>
> ST