The joint is Double V with 60 degrees included angle both sides.
In 3G our welder employs weaving whereas in 1G he welds stringer beads.
However by changing welding consumables (using imported consumables in place of local make),good interpass cleaning by grinding, proper preheating, our same welders are now able to give 100% UT,RT joints with FCAW.
Regards
Prem Nautiyal
On Sun, 19 Oct 2008 sanjay wrote :
>
>I HAVE FEW QUESTIONS TO ASK BEFORE COMMENTING ANYTHING ON THIS.
>1. WHAT IS THE INCLUDED ANGLE OF THE GROOVE?
>2. WHAT IS THE ESO YOU ARE TAKING AND WHAT IS RECOMMENDED BY
>MANUFACTURER.
>3. WHAT ARE THE WELDING PARAMETERS
>4. AT WHAT LOCATION, WITHIN THE GROOVE, YOU ARE GETTING LOF/
>POROSITIES?
>5. BEAD DEPOSITION IS STRINGER OR WELDER IS EMPLOYING WEAVING
>TECHNIQUE?
>
>PLEASE CLARIFY.
>
>SANJAY JAIN
>
>
>On Sep 19, 10:42 pm, "PREM SHANKARDUTT NAUTIYAL"
><prem_nauti...@rediffmail.com> wrote:
> >
> > Dear Friends
> >
> > We are presently using FCAW process(E71T-1) for welding SA516Gr.70 material in 3G and 1G. The joint calls for 100% RT and UT. The thickness is 70mm with double V.
> > But everytime we get repair in the weld like slag, LOF,porosities..
> >
> > So my basic question is can FCAW be used to weld RT and UT joints??
> > If yes what is the correct procedure / precautions to be followed..
> >
> > Regards
> >
> > Prem Nautiyal
> >
> > PREM S NAUTIYAL
> > CELL : 9820313278
>
>>
CELL : 9820313278
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