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Re: Toroid made easy 2



Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi,

This is pretty cool! There are many expanded air hot formed metal things out there. It requires, welding, grinders, lot of hot things, pressure... :o))) But the costs are dirt cheap if your have the stuff!!! With my welding "skills" it would turn out looking like a flat melted tire :o))) But the technology is well known... It might twist in the shape if and "8" or something too, but that would not be a big deal from an electrostatic point of view... Have to watch out if it pops like a balloon not to catch a chunk in the head!!!

If anyone tries it, please take lot of pictures!!! That really helps the rest of us 0;-)))

this certainly is a new look at an old problem...

Cheers,

        Terry


At 04:20 PM 2/3/2006, you wrote:
Have you ever watched Jessy James on cable TV. I saw him build a fuel tank for a chopper motor cycle like this. Jessy James cut the 2 metal plates into a water drop shape and welded them together. He heated it in an oven then blew it up with an air hose. This gave me the idea of making spheres and toroids. I have no oven so I decided to use charcoal its easy and cheap. I heli arc welded the metal plates together gave it a test and it worked. Sorry I did not take any pictures mostly because I had both hands full and was not sure it would really work very well my first try. The welds held fine and they did not leak or blow out. I let the air in slow so not to cool the metal I wanted the metal to stay soft like rubber. When it appeared to be blown up completely I quit putting in the air.

>
>With 30 years of metal working experience under my belt, I have to say this:
>Making toroids this way?  I`d have to see it before I beleive it.
>I don`t think that anybody with much metal working experience would
>bother to try, so, untill I see evidence that this method has
>actuallt been tested, I warn everybody against trying to do it.
>
>But I could be wrong, of course, so: will you pls. supply a picture
>of the finished product to the list.
>
>snip
>
>Cheers, Finn Hammer
>
>
>>Gary Weaver
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