Dear Experts,
I'm facing high rejection rate because of Tig process ER70S-3. We changed two brands of manufacturer
1.ESAB
2.Metrode
And we done so many test pieces for testing.The type of repairs are mostly inclusions and some porosities.we take many steps to control,still it was continuing.
Guys pls advise to avoid this kind of repairs.
Welders are complaining that there's some slag during welding and it was moving end of the weld pool.it was entrapping on the deposited weld metal and it can't be identified during grinding.we removed copper coating also.but it can't he controlled.
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