Re: Re rotary gap design

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "BRIAN FOLEY" <ka1bbg@xxxxxxxxxxx>

OK, we seem to be going round and round about tungsten. first it can and is
machined but it must be annealed, the machines must be super strong and the
cutting edges are usually diamond or diamond coated.
one such machine is Pnuemo air spindle lathe, it cuts all kinds of exotic
materials to extreme flatness or shape such as mirrors for lasers etc.
to do anything in the home shop ordinary diamond wheels will grind and cut
tungsten easily. cutting a necked slot into the od of a piece of tungsten
and crimping a brass tube over it to hold it securly seems ideal. the brass
could be pinned or locked into place. skip trying to machine tungsten on the
old 9 inch south bend it just wont happen. cul brian f.
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Tuesday, April 25, 2006 11:57 AM
Subject: Re: Re rotary gap design


> Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> MSC or Grizzly Industrial have carbide cutters and I believe diamond
> coated cutters.  I dont know how tungsten carbide compares to pure
> tungsten in hardness but there may be a solution.  Seems like a new
> file works to put a groove into 1/8 tungsten in preparation for
> "snapping" so I bet these cutters will work on tungsten.
>
> Gerry R
>
> >Original poster: BunnyKiller <bunikllr@xxxxxxx>
> >
> >Never have seen cutters that can do tungsten..  ( most cutters are
> >tungsten or compound with tungsten) grinding seems to be the most
> >feesible way to "machine" tungsten...
> >
> >Scot D
> >
> >
> >
> >Tesla list wrote:
> >
> >>Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
> >>
> >>Hi,
> >>
> >>Is it possible to turn tungsten in a metal lathe (something a home
> >>shop would have)?  I would guess McMaster would have the tools if so.
> >>
> >>Cheers,
> >>
> >>         Terry
> >>
> >
> >
> >