Welding assessment for intubation
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The thickness of the cylinder plate is 14 mm, and the thickness of the insert tube is 3 mm. There are two weld assessments: one covers a range of 12–24 mm, and the other covers a range of 1.5–6 mm. Do both of these weld assessments need to be used? Is it not sufficient to use only the one covering 12–24 mm?
How should we understand the phrase 47014.6.1.5.5?
It depends on whether you make grooves or not; if grooves are made in the cylinder, both methods will be necessary； If no groove is made, one will suffice.
When a welding process that has passed the evaluation for butt welds is used for fillet welds, there is no limit on the effective range of the workpiece thickness. How should this be understood?
This sentence applies to cases c), d), and e) in Figure 1 of NB/T47014-2011 P39.