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RE: metal spinning on DIY



Original poster: "Rich" <rdjmgmt@xxxxxxxxxx>

I worked in a research and test lab for McDonnell aircraft for 40 years
and have done a little of everything. If you have a lathe, spinning alum
is not hard to do. You just must start out with "O" type alum, dead
soft. It will work harden as you go and can be softened with a torch,
like copper. You would need to make a wood pattern for a backing when
you form in inner radius and be very careful of the outer rotating edge,
it can take off a finger in the blink of an eye.

Rich

Subject: Re: metal spinning on DIY

Original poster: Ben McMillen <spoonman534@xxxxxxxxx>

Mark,
    I tried this once with some sheet copper. I made lots of
'hat-looking' plates, since that's all the further I
managed to get before the metal sheet separated form the
half-formed sphere.. I never quite got the technique down,
although I imagine that aluminum might be a bit more
forgiving..

Coiling In Pittsburgh
Ben McMillen



> Original poster: "Mark Broker" <mbroker@xxxxxxxxxxxxxxxx>
>
> I was watching the Do It Yourself network last Saturday
> evening. The "Wood
> Turning Techniques" show last week was on metal spinning.
> Dave, the master
> turner, and his apprentice spun a small aluminum bowl,
> but I kept seeing
> toploads! :o)
>