On Wed, 25 Apr 2012 22:19:40 -0400, "Existential Angst"
wrote:

wrote in message
.. .
On Wed, 25 Apr 2012 22:03:10 -0400, "Existential Angst"
wrote:

"Ignoramus18965" wrote in message
news:MfednYn65algAgXSnZ2dnUVZ_t6dnZ2d@giganews. com...
I have a "beavertail double drop deck semi trailer":

http://igor.chudov.com/tmp/Trailking/

that needs some work done on its very tail end:

http://igor.chudov.com/tmp/Trailking...-0010.jpg.html

Some of it would involve "Overhead" welding, operating from below the
weld.

What is the easiest way to do it correctly. These would be welds that
need to hold up when a forklift or a metal tracked vehicle drives over
that tail.

We have solid mig wire and E71T flux cored.

Proly should post to sejw.
Don't know what the spatter situation is like for mig stuff, but if it's
anything like stick, get leather headgear -- not too much is worse than
slag in the ear.... except for mebbe slag in the eye. Slag in yer socks
is
no joke either.
And a welding jacket,

Overhead welding, at least for stick, requires a lot of practice.
Particularly on a scabby old trailer.
Flip the sucker, or at least stand it on it's side, and sandblast the
repair area. My preference would be to stick weld it, but that's just
me.

Mebbe even easier/wiser to skip the welding and bolt mending plates made out
of suitable angle iron, etc, if possible.
With reamed holes and precision fit bolts, perhaps. Or hot rivets,
properly set. ANY movement will eventually cause the bolts to fail.