Re: [MW:22831] High rejection rate in Tig process by using ER 70S-3

dear Sir;

You weld is done according a WPS ?? 

To avoid this kind of defects please check your tungstene electrod and the gas concentration ( 99 % ) any defect in the gas tubing is a problem .

regards

 

SALHI Raouf

QA/QC Engineer

Tel: Morocco +212628979891

      Tunisia +21621458258

Le Samedi 7 février 2015 16h59, Srini Vasan <srinicwi@gmail.com> a écrit :

All machines are calibrated also brand-new. Mostly 85% of the welders are facing problem.joint design,parameters,joint cleaning everything perfect.as per discussion with welders they are finding some excessive slags(pacman)which is entrapping in the weld metal.during repair excavation we found some brownish color inclusion spreaded on the location.
Is there any technical problem in 70S-3?
Anybody faces these problems previously in your experience?

On Feb 7, 2015 9:23 AM, "S.Mohammed" <mohd52100@gmail.com> wrote:

1.check your machine calubration or recalibrate.
2.Use ER 70S2.
3.ensure good wind shield.

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