[TheForge] RE: Frying pan -- SS and aluminum

Fri Aug 22 00:19:00 2003

Amen 2 thermite...............


----- Original Message ----- 
From: "Bruce Freeman" <[email protected]>
To: <[email protected]>
Sent: Thursday, August 21, 2003 11:09 AM
Subject: [TheForge] RE: Frying pan -- SS and aluminum


> 'Course, maybe for steel you could just let it rust, then when you
> poured molten aluminum on it you'd get at THERMITE bond!
> 
> Oh, oh!  Maybe I shouldn't'a brought THAT subject up again...
> 
> Bruce
> 
> >>> [email protected] 08/21/03 01:49PM >>>
> Bruce,
> 
> Stainless to aluminum frying pan.
> 
> I think the way all of these have been made by industrial production is
> to
> hot roll a sandwich of aluminum and stainless steel.  This produces a
> forge
> weld between the aluminum and SS.  In practice this is hard to roll
> because
> of the difference in friction between the stainless and the roll and
> the
> aluminum and the other roll.  The damn stuff want to curl real bad.  In
> a
> twin drive mill -- separate motor for top and bottom roll -- this can
> be
> control by a difference in torque to each roll.  The rolled sheet is
> then
> blanked and formed in a press.
> 
> Your idea of using molten aluminum might work, never seen it tried. 
> Steel
> to aluminum welds are made by friction welding, but that is another
> story.
> 
> Dave Smucker
> 
> ----- Original Message ----- 
> From: "Bruce Freeman" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, August 21, 2003 11:37 AM
> Subject: Re: [TheForge] RE: Frying pan
> 
> 
> > One of my nicer pots (picked up at a flea market) is SS with a thick
> > aluminum layer fused to the bottom.  All the advantages of SS, all
> the
> > advantages of thick aluminum.
> >
> > This struck me as something I could probably make  myself, but I
> > haven't tried it.  Kinda like a Fisher anvil - get the steel pan red
> hot
> > and fuse it to molten aluminum in a mold (upside down, of course, as
> the
> > slag floats), then grind off the slag and file or grind a flat finish
> on
> > the bottom.
> >
> > Bruce
> > NJ
> >
> > >>> [email protected] 08/21/03 11:19AM >>>
> > On Wed, 20 Aug 2003 17:35:39 -0500, Bob Ehrenberger
> > <[email protected]>
> > wrote:
> >
> > > Andy,
> > >
> > > It sounds thin to me also.  But never having made one before who am
> I
> > to
> > > say. We never use anything but cast, I have never used a steel fry
> > pan.
> > > Once upon a time we had an aluminum pan with a teflon coating, it
> was
> >
> > > really
> > > bad.
> >
> > I had Revere's 200th anniversary pans.  THey were so heavy
> > that I'm sure a small woman would not have been able to
> > wield them.
> > About 1/8 thick (8 ga) or better, copper sandwiched
> > with stainless steel on both sides.  Sadly I gave them to
> > my GF at the time when we went our separate ways, though by
> > some twist I still have the pancake griddle thingy.  Must
> > weigh 4# and it's only about 12 to 14 inches square and almost
> > dead flat.  They worked very well; good even heat, and that
> > is the important factor, as far as I know.  That's why so
> > many of your good pans and pots have the thick copper clad
> > bottoms.  I think thin sides are OK, but the bottom should
> > be a good 1/4 inch thick or better.
> >
> > Personally, I suspect that unless you are well capitalized
> > to mass-produce these items, or you are going to charge some
> > ungodly price, things like this are far too much work to be
> > worth one's time.  If you can get $500 per piece, then spending
> > a whole day building a frying pan may be a profitable venture.
> > Short of that, I think it's a loser in business terms.  If
> > you just want to do it for the experience then by all means
> > do so.
> >
> > It's funny when you think of a form as simple as a frying pan.
> > One does not immediately associate it with great time and
> > effort in the manufacture, even by hand.
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