Welding defect problem?
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What are the main types of welding defects in pressure vessels? There are seven main types of container welding defects: pores, slag inclusions, cracks, undercuts, lack of fusion, misaligned undercuts, and deformation. I don’t think I’ve heard of “wrong edge undercut”. What does it look like specifically?
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Wrong edge: There is a height difference on the surface of the cylinder plate； undercut: After welding, it was obvious that there were traces of melting on the edges, but there was another trench that was not fully welded.