Video aula - Soldagem com eletrodo revestido Pos. 5G Filler layer and cap layer with SMAW stick


Uploaded by BrazilWelds on 07.10.2011

Transcript:
Here is me and my friends welders "TITO" and "ROMISCLEI"
The ROMISCLEI is also the state of Alagoas
and he is a certified welder in the welding position 6G
in the SMAW welding process.
To facilitate the welding with SMAW process, use "
a whip lead like this
very flexible, we removed
the stranded copper wires and put it in a
flexible hose that leaves the
cable well soft how
you see here.
The root pass was made with the TIG process
We apply liquid penetrant and developer
To eliminate any discontinuity that could have happened
in the root pass, we remove the developer
with a wire brush and is ready
to start the filling with the
SMAW Process
Here the welder starts the first pass using electrode AWS E7018
2.5 mm (3/32") in diameter
Watch now through the lens. Note
the position of the electrode to prevent the weld pool drain.
Now he is up to with the electrode, Note
it moves with the electrode with a
small movement of oscillation because there is no
space for two weld beads.
Before making the amendment of the weld bead, clean
well the end of the previous pass to not stay with the inclusion of slag.
Note now that he pull
the electrode, this will give
more volume in weld bead
in this position of the tube.
Watch now through the lens
Now the welder
makes a good cleaning
of the weld bead, removed
All slag
He also makes two guides at the corners of the weld bead to
use as a reference
for the next pass
Notice the two guides that will facilitate the travel.
of electrode.
Note the welder position
and of electrode
Note that the welder moves in speed straight
and without any oscillation.
Here
we complete the pass, but without even brushing
Here again the welder
Make a cleaning with a rotating brush
Here the welder concludes
the filling passes and now will correct the imperfections.
to make the finishing passes
first he uses this metal belt to scratch
and mark where it will be started, the finishing passes
for the weld beads are not misaligned.
Now
he carefully makes the guide where will be made the weld
bead
See here, the guide.
now he flush the welds
For the weld beads be at the same height
If the welder did not make this guide
before grinding these welds, he would be lost
now and would not do
it correctly.
Here is a view, of the first finishing pass
Start of second finishing pass at position
over-head. Again note the position of the electrode
to the weld pool does not drain.
Note the position of the electrode uphill now.
So far all passes, with the exception of first pass filler
all others were made without oscillation.
here we have
the end result
Tkan you for watching