Dear Krisanu Bhunia and Experts,
FOR WELDER QUALIFICATION TEST
I would like to share my experience as below, ( correct me if I am wrong. )
From Quality point of View:
· First thing is " Welder qualification test" is done to determine the ability of a welder
to deposit sound weld metal.
· Sound metal means a quality weld at first time. ( without making visual defects like cracks, undercuts, porosity, excess reinforcement, Etc. )
· As per ASME SEC IX, the only visual criteria you could find as mentioned below:
· QW-194 Visual Examination — Performance
Performance test coupons shall show complete joint
penetration with complete fusion of weld metal and base
metal.
From Production Point of View: - During the test, If a welder making undercut or with Visual porosity – please reject him, before your client does the same, since this welder if qualified - he will make more undercuts and porosity in the Job and uses grinder repeatedly / wastes precious time schedule of the project / off course increase the work of Welding Inspector and cannot make a productive output results. Hope you got the message.
AND FINALLY – Client have to decide !
Regards,
Sathish
Jazan, Saudi.
Daer.ALL--Please tell me cluster porosity acceptance limit for Welder qualification test as per ASME XI or VII.Regardskrisanu bhunia
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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.
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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.
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