[TheForge] pressure swelling

[Bruce Freeman]

I've never tried it either, but I've seen the results.

John Wykoff (?) and Dan Radven did some "soybean pods"
for FMC, I think.  I only saw slides, but they were
clear slides.  They cut out the outline (maybe 2' or
3' long - extra large soy beans!), welded two sides
together, then swelled it with localized heat. 
Instead of swelling like a balloon, to its limit, the
localized heat allowed them to create bulges
corresponding to the "beans in the pod."  Very
effective.

Bruce
NJ

--- Tod Estes <testes at medicine.nodak.edu> wrote:

> Yeah, xactly that, matter of fact I was thinking of
> her pillows when I wrote
> that. I am not sure how hot the metal has to be; or
> how much control you can
> get with that technique. I have never tried it but
> it is on my list of things
> to do one day.


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