Re: Fadal Drilling speed

WOW! That's fast, I was thinking of using a carbide insert drill
from Allied Machine & Engineering Corp. (Doall)

Thanks for the information!

Charles

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "skullworks"
<skullworks@...> wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "smeboss" <c65pratt@>

wrote:

> >
> > Hi Guys
> >
> > I'm wondering how fast a Fadal 4020 can drill a series of 15/16

holes

> > thru 3/8 mild steel, rectangular patttern, 2 rows of 4, 4"

centers?

> >
> > I don't have any experience with these machines, but it takes me
> about
> > 30-60 seconds per hole manually.
> >
> > Thanks
> >
> > Charles
> >
> Once you get into full sized CNC machines its not so much a

question of

> what the "machine" can do, more a question of what the tooling can

do.

>
> I had to drill a double grid pattern of 20mm holes on 26mm centers

in

> 3/8" hot rolled. (heat exchanger end plates)
>
> Using a Mori Seiki SV50B (CAT40) and a Kennametal solid carbide

drill I

> was punching thru in 1.3 seconds...
>
> Feed .027" / rev.
>
> OK I know the Fadal won't quite do that (it was requiring about 24

of

> my 30HP) but it would get close with optimal tooling.
>