Re: [MW:14405] MMA welding Electrode Gets red hot

Dear friends,
1) We want to the check the packing of the electrodes
2) check the machine amphs during the welding time
3) check the backing temperature of the elctrodes
4) check the welder using current proper according to wps

after this u have facing the same problem, select some other brand

On 5/29/12, prem nautiyal <prem_nautiyal26@yahoo.com> wrote:
>
>
> The electrode dia. must be 2.5mm and not 2.6mm !
> What current you are using ? You might be using higher amperage than the
> recommended parameters by the consumable manufacturer or your WPS.
> Generaaly SS and Inconel 2.5, 3.2 mm dia electrodes have a tendency to get
> red hot while welding at higher amperages.
> This also depends on the coating factor of the electrodes.
> Also check the calibration of your welding power source.
>
> If the problem of porosity is still there then try with another brand.
>
> Regards
>
> Prem Nautiyal
>
>
> ________________________________
> From: "murtaza506@yahoo.com" <murtaza506@yahoo.com>
> To: Materials & Welding <materials-welding@googlegroups.com>
> Sent: Tuesday, May 29, 2012 5:33 PM
> Subject: [MW:14386] MMA welding Electrode Gets red hot
>
> I have a MMA welding electrode of SS 308L Dia. 2.6mm. when half of
> the electrode is consumed it get red hot, and it gives porosity in the
> weld metal what could be the reason i.e. is it a welding problem or
> there is a problem in the electrode???
> if this problem is due to electrode then what can be the reasons and
> rectifications???
>
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--
shankar

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.