View Single Post
  #8   Report Post  
Posted to rec.crafts.metalworking
Pete C. Pete C. is offline
external usenet poster
 
Posts: 6,746
Default Overhead welding on a semi trailer


Ignoramus18965 wrote:

On 2012-04-26, wrote:
On Wed, 25 Apr 2012 22:03:10 -0400, "Existential Angst"
wrote:

"Ignoramus18965" wrote in message
om...
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.


Yeah, just flip that 16,000 lbs sucker ...


Did you see the video of the tornado tossing semi trailers through the
air in Dallas recently?

16,000#, and you only have to lift a side and let the weight mostly bear
on the other side. Should be easy enough with a forklift and some care.