If you are concerned more about to avoid root undercut, the only thing you need to do is to demagnetise the job near to wep and on wep with the help of demagnetising equipment and weld after demagnetising. You will get a smooth weld without any undercut.
For one of our projects, we have over come the undercut problem by demagnetising and welding. This is for your information and for ferritic materials only.
Regards
Ramu
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--- On Mon, 28/7/08, atul patil <atulpatil99@gmail.com> wrote:
> From: atul patil <atulpatil99@gmail.com>
> Subject: [MW:976] Re: Root under cut
> To: materials-welding@googlegroups.com
> Date: Monday, 28 July, 2008, 1:22 PM
> to avoid root undercut
> thanks in advance
>
>
> On 7/27/08, Paresh Katvi <pkatvi@gmail.com> wrote:
> >
> > Dear Atul
> >
> > Ar you looking for information How to avoid root
> undercut or NDT method to
> > analisied under cut in most sensitive manner?
> >
> > please give further information.
> >
> > Regards
> >
> > Paresh Katvi
> >
> >
> > On 7/22/08, atul patil <atulpatil99@gmail.com>
> wrote:
> >
> >> Dear all
> >> I am working with Gas export pieline in Kazakhstan
> >> We are using 6010 electrode for root
> >> & 8010 for fill cap
> >>
> >> we are facing the problem with root undercut
> >>
> >> Actually on the basis of radiography ( ISO 13847 )
> doesnt ask to
> >> cmpareason of density with parent metal It says
> only about length
> >>
> >> Please guide
> >> It is very difficult to prepare the calibration
> block for UT ( Manual ) in
> >> my city ( Atyrau )
> >> Could you please guide
> >> any suggestions welcome.
> >> >>
> >>
>
>
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