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

Fri Aug 22 10:36:01 2003

Negative.
Sheet explosives are the way to go.
The aluminum upper structure of the SWATH ship SSP KAIMALINO were explosive
welded to the steel struts and lower  hull.
The welds were still good after 25 years of ocean service.
Chuck
----- Original Message -----
From: "Paul Hewitt" <[email protected]>
To: <[email protected]>
Sent: Thursday, August 21, 2003 11:12 PM
Subject: Re: [TheForge] RE: Frying pan -- SS and aluminum


> 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.
> > > _______________________________________________
> > > http://mailman.qth.net/mailman/listinfo/theforge
> > > theforge mail list group photo site is
> > > http://www.photoaccess.com
> > > Login:  [email protected]
> > > password:  anvil
> > > ___________
> > >
> > >
> > > _______________________________________________
> > > http://mailman.qth.net/mailman/listinfo/theforge
> > > theforge mail list group photo site is
> > > http://www.photoaccess.com
> > > Login:  [email protected]
> > > password:  anvil
> > > ___________
> > >
> > >
> > >
> > _______________________________________________
> > http://mailman.qth.net/mailman/listinfo/theforge
> > theforge mail list group photo site is
> > http://www.photoaccess.com
> > Login:  [email protected]
> > password:  anvil
> > ___________
> >
> >
> > _______________________________________________
> > http://mailman.qth.net/mailman/listinfo/theforge
> > theforge mail list group photo site is
> > http://www.photoaccess.com
> > Login:  [email protected]
> > password:  anvil
> > ___________
> >
> >
> >
>
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  [email protected]
> password:  anvil
> ___________
>
>
>