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How do i determine the thickness of weld metal deposited in a PQR containing 2 different welding processes performed by 2 different welders? We are conducting a pqr for 9mm thick test coupon with root SMAW + two subsequent passes of FCAW. Now how do i determine the weld metal deposited for each process and the range qualified for each process individually.
Reply:I am not sure why it would be so important but you could use a standard six inch caliper and use the depth measurement after each pass at at least four locations along the test piece. This is to determine depth of buildup. If it is to know the amount of deposited metal then weigh it after each pass. You would have to measure the amount with the limits you have chosen as your range.
Reply:you could cut it etch it and measure it.
Reply:You could count how many rods went into it and figure the weight of deposited metal in SMAW that way, subtracting the weight of the stubs. For the FCAW, you could weigh the spool before and after welding and figure the weight that way. I don't know how the weight of flux powder would be accounted for in either process though.Or, how about a displacement test? Measure the displacement of both test pieces in a graduated container of water, then measure again after the stick passes are in, then measure again after the wire passes are in. Plates would have to be completely cooled naturally before going in the water.Last edited by DesertRider33; 05-02-2009 at 10:52 PM.MM350P/Python/Q300MM175/Q300DialarcHFHTP MIG200PowCon300SMHypertherm380ThermalArc185Purox oaF350CrewCab4x4LoadNGo utilitybedBobcat250XMT304/Optima/SpoolmaticSuitcase12RC/Q300Suitcase8RC/Q400Passport/Q300Smith op
Reply:What kind/size wire/rod.Have we all gone mad?
Reply:QW-452 for your qualified thickness. You'll be limited to your 2t for each process separately. |
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