Re: Commercial EDM capacitance ranges

check out post 55020
for one comment on water.


it does seem that anyone who gets information on EDM seems to keep it
close to the vest. I think next time I visit my friends shop, I'll
open the EDM and take some pictures of the power supply.

Dave




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Larry Edington"
<ledington@a...> wrote:

> Anybody know the range of capacitance found in a typical commercial

wire and sinker EDM?

>
> What about the adjustability of the capacitance? How many different

steps are usually available?

>
> What about voltage? I've read 80 volts max is typical.
>
> I assume if you are doing active spark control, you just put in

enough capacitance to supply your longest

> spark time and limit down from there. I'm trying to determine what

those ranges are for spark time and max

> voltages.
>
> One more question ( for now ). Why is deionized water used in wire

EDM when an oil product is used for sinker EDM?

>
> thanks,
> Larry E.
>
> [Non-text portions of this message have been removed]