On Sun, 19 Dec 2004 10:50:54 GMT, Ernie Leimkuhler
vaguely proposed a theory
.......and in reply I say!:

remove ns from my header address to reply via email
PMFJI

Amazing sites, thanks Ernie.

But I get so mad at these guys that make you get each bit
individually! GG
If you want some reading material, try this.

http://www.weldinginnovation.com/pdfs/wi299.pdf

Probably the best article ever written on welding aluminum.

Also check out

http://www.alcotec.com/techpage.htm

Tons of great technical info on alloys.