Re: Welding gas glasses for aluminum

Carl,

As best I can tell, the authority on this subject is the "Tin Man" guy.
He sort of "Re-invented" gas welding of aluminum after the world
almost forgot it could be done.

And apparently, he has built himself quite an empire. He markets a
green lens that he claims is the best to be had. Back during WWII when
aircraft aluminum components were gas welded, people used a blue lens.
I can't remember what it was called. I wanna say "duodenum" but I
think that's part of the anatomy of the stomach...

Anyway, all the above is simply me regurgitating what I read on his web
site several years ago. At that time I bought one of his expensive
lenses and I still have it.

But I've never used it. According to the "Tin Man" the issue is that
the flux incandesces a brilliant yellow which is quite injurious to the
eyes. He claims that the "duodenum" lenses do not adequately protect
against this.

I hope I haven't mis-stated anything the Tin Man says in his web page.
But I repeat it's been several years since I've thought about this.

And I hope it goes without saying "the Tin Man" ain't my uncle or
brother-in-law. And I could care less whether you buy any of his
stuff.

V
carl mciver wrote:
> For those who are familiar with gas welding aluminum, I was curious
> about the lenses you use. There are a few different lenses out there and I
> wanted to separate the financial interest in selling expensive lenses with
> what works well enough. I wouldn't mind playing with it just so I can say I
> can, but I wanted to be properly equipped for the process.
> Are certain rods needed for different alloys for general purpose stuff
> or will one or two do for most kinds? How do you know what alloy you have?

.

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