Welder Quals

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  • January 18, 2018 at 7:35 am #1487
    Inspector Gadget
    Spectator

    If a welder welds a production double V butt first in the 4G position then back grinds and finishes it off in the 1G position, what range of qualification can the welder then be qualified too for 4G (i.e. Full peno butts or just partial pen butts in 4G?). The WPS is qualified for double V 4G and 1G to AS 1554.1.

    Thanks
    IG.

    January 19, 2018 at 5:15 am #1486
    Ballbearing
    Spectator

    IG,
    You mention a production joint and then you ask what thickness is he qualified for ?
    Are you using a production weld to qualify the welder ?
    Is it to AS 2980 ?
    If so I would say (IMHO) that he would be qualified for 2 x Deposited Weld Metal in the 4G position.
    What thickness ?
    Cheers,
    BB

    January 20, 2018 at 8:22 pm #1488
    Inspector Gadget
    Spectator

    Hi BB,

    Thanks for your reply.

    Yes using a production weld to qualify welders.

    I was just wondering if a 4G and 1G (fixed double V butt) would also qualify a welder for 4G full peno butt welds to AS1554 or AS2980? (WPS qualified to AS1554.1 SP).

    Cheers
    IG

    January 21, 2018 at 11:17 pm #1489
    Ballbearing
    Spectator

    IG,
    Where does it allow production welds to be used to qualify welders in AS 2980 ?
    If you complete an AS 2980 4G weld test you automatically get the 1G so your welders are qualified to weld the production joint.
    Your situation (dual positions) is not dealt with in either code (that I can see), probably because performing on a test coupon as per the code is the requirement,
    Regards,
    BB

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