Tech Request....Oxy/Acetylene Welding

Could someone please post a basic how-to on welding (preferably sheetmetal) with a torch? Or point me somewhere that would have such info. Or should I just put on the smallest tip I have, grab a coat hanger and start melting stuff until I fugure it out???

Thanks....Brian

 

www.tinmantech.com

 

get youself a book or two,

I'm always picking up something, my most recent one is called

Performance Welding, by Richard Finch , lots of good info.

like all welding gas welding needs clean metal, a good fit and the correct filler rod for the metal you're working on.

the equipment needs to be good, clean and reliable.

but instead of going into a three page disertation (I'll leave that for everybody else)

I'll just say; PRACTICE

Paul

 

...and just say no to coathangers.

 

This article might help:

http://metalshapers.org/101/jkelly/index.html

John www.ghiaspecialties.com

 

Thanks for the link John. In your article you mention tips '00 or 000, and low line pressures'. Is it possible to use a full size setup for this and choose a 000 tip? I thought running low line pressure was a hazard due to 'flashback'

I like the idea of gas welding and would like to avoid a MIG if possible (read: I already have an OA set up). I wondered if I needed to purchase the MECO sized torch & lines that is featured on the tinmantech (MECO) site to accomodate panel welding (i.e. low heat). Any comments would be appreciated. Thanks.

Later,
papa al

 

never used one but this henrob torch looks cool.... here's a link... http://www.cut-like-plasma.com/

 

Thanks everyone for the links and the tips...now I just need to go melt some sheetmetal. One more question if I may, what line pressure should I be running when cutting with a torch (cutting through about 1/4" steel)? I've been having a hell of a time with mine, but I'm blaming it on my cheap chinese torch and regulators..I seem to have to crank the pressure way up to get the thing to cut at all. About time for a real torch I think....

Thanks....Brian

 

[ QUOTE ]
Thanks for the link John. In your article you mention tips '00 or 000, and low line pressures'. Is it possible to use a full size setup for this and choose a 000 tip? I thought running low line pressure was a hazard due to 'flashback'

I like the idea of gas welding and would like to avoid a MIG if possible (read: I already have an OA set up). I wondered if I needed to purchase the MECO sized torch & lines that is featured on the tinmantech (MECO) site to accomodate panel welding (i.e. low heat). Any comments would be appreciated. Thanks.

Later,
papa al

[/ QUOTE ]

Hi papa al,

I haven't used a larger torch for welding sheet metal before so I can't help much on that. There are flash arrestors? that are supposed to eliminate that problem. I use a Victor jr or a Henrob...the Meco looks like a nice choice. I like the small size.

Hi Brian, Been years sice I did much cutting with a torch...but you need about 40 psi on the oxy, and 5-10 on the acetylene if I remember right. Clean the cutting tip often!

John www.ghiaspecialties.com

 

Thanks John. At one point I had it cranked up to about 60 and 20, but I have since found what the problem was...I think. Totally dis***embled the thing and found a small piece of br*** that was intermittently clogging things up...who knows where it came from. Working now, still need to invest in a good torch though...

Brian