sheet welding

We tried it and were unsuccessful. Just as the parent metal started to melt the torch would blow out, with a bang. We could braze but not weld.

Cheers,

Bruce (bruceinbangkokatgmaildotcom)

The only acceptable fuel gas for welding steel is acetylene. Any of the LP gases will introduce excess hydrogen into the weld pool, which will cause hydrogen embrittlement.

GWE

The structure of the flame is also completely wrong for the job.

Try a cutting torch with a LP gas tip. The center of the tip is recessed to prevent too much air being drawn into the mixture.

Engineman

I'm sure it could be done with someone with a lot of patience and just the right equipment. I prefer a MIG, and when the proper heat is decided, just a series of spot welds works great. Have made washer catchment pans, bird baths, lots of things. Tack, tack, tack, made easier with an autodark where you let it cool to a certain color, then hit it again. Really looks like TIG when you're done, and brings a lot of compliments and inquiries.

Not great to long distances because of warpage. Maybe better if properly clamped.

Steve