The welder project has coverage issues; seeking advice
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For a stainless steel butt joint with a thickness of 20, in the workshop half of the welding is done manually using TIG welding for the root pass, while the other half is done automatically using TIG welding for the cover pass. Does the manual TIG welding process also require coverage of 20 mm? Can GTAW-FeⅣ-6G-7/30-Fefs-02/10/12+GTAW-1G(K)-04/07/09/19 be used for this purpose?
A welding certificate for TIG welding allows welding up to 2T, which is 14 in terms of thickness; theoretically, this limit cannot be exceeded. However, if TIG welding is used as a backing process, it can be considered that the thickness range covered by this backing process is sufficient. As for other forms of TIG welding, such as manual TIG welding, the welder’s certificate does not permit welding materials with a thickness of 20 units
Is GTAW-FeⅣ-6G-7/30-Fefs-02/10/12+GTAW-1G(K)-04/07/09/19 a continuous welding certificate? If it’s a continuous welding certificate, that will suffice; the reply from above is very accurate
It depends on the welding procedure card you specified. For the wage card, if the required base thickness is 14 or less, then it’s fine; but if it’s more than that, it won’t work