Tuesday, April 23, 2013

[MW:17520] Combined welding process qualification

Dear Expert,

Could you please give your opinion for following matter?

Combined welding process: GTAW + SAW
Test coupon: Single U
Plate thickness: 20 mm
GTAW - root pass and hot pass (approx. 4 or 5 mm)
SAW - filler pass and capping (approx. 16 mm)
Root to be back gouging and filled with SAW.

Question:
1. Does this welder / welding operator qualify to weld with GTAW and SAW? Root to be back gouging and filled with SAW.


2. Is separate qualification required to qualified this welder / welding operator for GTAW + SAW?




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