Re: [CAD_CAM_EDM_DRO] edm and wire cut

mr_saad31 wrote:

>wht is the difference
>
>

There are two types of EDM, "sinker" and wire. The wire cust a
hair-thin line
in something. Typically, they have 4 axes, in the form of two stacked
parallel
X-Y pairs. One X-Y positioner holds each end of the wire. You can cut
conical
holes in a plate, for instance. The wire is constantly moving.
Depending on the
wire, it may be disposable or run back and forth many times.

Sinker EDM uses a machined electrode, usually copper or graphite, to plunge
into the work. A copper tube could be used to drill a hole in hard tool
steel
slightly larger than the tube's OD. A graphite electrode with a name
carved into
it in reverse-writing could be plunged into a piece and leave an inpression
of raised letters, just like it was a mold.

Both processes are EDM.

Jon