Welder exam thickness coverage issue
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In the TSG Z6002-2010 regulations for welder examinations, there is no mention of base metal thickness coverage; only weld metal thickness coverage is specified. Does that mean that the thickness of the base material is no longer a problem? If one welder does not have the necessary qualifications, is it sufficient to use a few more welders? Specifically, the thickness of the test piece for testing is 5 mm, with the weld thickness ranging from 0 to 10 mm. The current product has a thickness of 20 mm, and it is welded by 2 welders, with each welder handling 10 mm of the welding work. Is that okay? (2017-11-29)
Don’t you find that troublesome? From the perspective of production management, that is also not allowed
This situation is not common, but it is used in the construction of long-distance pipelines
It is generally done through combined welding, and the thickness of the test pieces is usually 12 mm or more
The thickness of the test plate for testing is 5 mm, with the weld thickness ranging from 0 to 10 mm. The current product thickness is 20 mm, and welding is carried out by 2 welders, with each welder handling 10 mm of the thickness. Is that okay? No
If it’s not possible to find a 20-year-old girl as a partner, can one find two 10-year-olds instead?
The standards are specified; see Exam Regulations, page P24, Table A-7
This is completely fine; the examination rules do not prohibit it. Moreover, the rules only take into account the thickness of the weld metal, and not the thickness of the base material. It’s just more complicated in practice – how can you be sure that 10 mm is the exact value?
You can’t tell the difference between 10 and 20