17 years ago
having a hard time getting nice golden brown welds. Most of the time their
dark grey or black and appear to be scaling. I'm purging the pipe and the
back side looks good. I think my problem is heat. The pipe is 14 gauge and
the plate is 3/8" so I'm having to put a lot of heat into the weld to get
good penetration on the 3/8". I've turned up the gas flow and I'm still
seeing the scaling.