Re: stepper edm

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler" <eexgs@...>
wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "turbulatordude"
> <dave_mucha@> wrote:
>
> > As the electrode progressed the electrolosys increased

geometrically.

>
> I know electrolosys effects the finish of the metals and some of the
> surface properties but I'm a bit confused why orbiting or rotation
> would help. Is is simply because the process will take less time in
> general? I didn't think you even got electrolysis in oil? (I
> shouldn't assume oil though)
>
> Are you simply bothered about the effect on finish?
>
> Graham

I was trying to remove a broken tap.

the 3mm diameter copper wire (#12 ga) has a surface area of pi ^2 for
the 3mm face. ( 7mm )

at 3mm depth, the area is now, the face plus the outside diameer of
the cylinder. 7mm plus 28 sq. mm

That has a surface area of 7mm for just end cutting, or 35 sq mm when
the electrode is just 3mm deep.

What I noticed was that the surface darkened in a large section
around the hole. This too lead me to believe the elctroloysys was
draining away the energy.

and, yes, it was water. working in a basement, I have very litle
ventilation.

Dave

>