brandon26 wrote:

Hi.
I have to investigate how to weld (or join using other methods)
aluminium tubes together. I know that this is very difficult because
of the melting point of the material, but it is possible and has been
done before.
Can anyone provide further information on how to weld aluminium tubes
together or provide the address of a website for reference?
Thanks

Never heard of google? You can type just about anything in there and
get results.

Do a couple searches. Start with "welding aluminum tubing" then try
"alternatives to welding aluminum tubing", you could even try searching
for stuff like "building aluminum bicycle frames" or "structural bonding
of aluminum tubing" or "riveted tube construction techniques"

Have fun with your homework!

Cheers
Trevor Jones