[WWI] Answer to question

Ray Boorman fokkereiv at gmail.com
Fri Apr 20 23:17:47 EDT 2007


Actually machine turned finishes had uses like stopping stress cracks
in very thin beaten aluminum like cowls etc. Of course it looks nice
too

On 4/19/07, Clarence Wentzel <cewentzel at yahoo.com> wrote:
>
> Date: Wed, 18 Apr 2007 10:37:55 -0700
> From: <dr-i.417.17 at cox.net>
> Subject: Re: [WWI] SPAD 13 Internal fitting
> To: World War I Modeling Mailing List <wwi at wwi-models.org>
> Message-ID: <25975144.1176917875772.JavaMail.root at fed1wml22>
> Content-Type: text/plain; charset=utf-8
>
>
>
> > A!
> > > On a somewhat related (and definitely OT) note, perhaps you
> can
> answer
> > > this one: How did a 'machine turned' finish prevent
> corrosion,
> assuming
> > > that was its purpose? I've always wondered that.
> >
>
> As soon as I can break free for an hour or two, I intend to go to our
> old OLD real live paper book library here at the FAA Center and see if
> there is a definitive work on the topic
>
> T
>
> My undrstanding is that the "Machine Turned" finish was a purely decorative process.  Typically, large aluminum panels were formed using a hammer and a form to shape the part.
> When the shaping was finished, the surface appearance contained lots of bumps.  The machine turning cleaned up the surface.
>
> Clare
>
>
>
> Visit "Clare's Corner" at;http://www.geocities.com/cewentzel/
>
> ---------------------------------
> Ahhh...imagining that irresistible "new car" smell?
>  Check outnew cars at Yahoo! Autos.
>


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