The pipe groove diagram should be drawn from the design blueprint
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We are doing pipe installation, and the supervisor said that there is no groove diagram for the welding process. The welding procedure is shown as a groove diagram according to the construction drawings. Because welding does not meet the design requirements; if the requirements are too high, it results in excessive quality, while if they are too low, the design requirements cannot be satisfied. I would like to ask which engineer should provide the groove diagram: the design engineer or the welding engineer?
Designs generally specify construction standards, which the contractors follow in their work. If there are special requirements in the design drawings or specifications, follow those special requirements. If there are any ambiguities in the design or conflicts with standards, the construction party can raise objections, and the design team will provide an explanation!
The groove should be determined through welding procedure qualification; therefore, it should be created by welding
Yes, it’s specified in the welding procedure specification
It is determined by the welding engineer in accordance with the standards
Is the groove diagram mentioned by the supervisor the same as those pictures used in the welding procedure qualification? Groove type and groove size
The last edit to this post was made by ldx2008 on 2016-12-6 at 15:50. Generally, a recommended diagram of joints is provided, or it is specified which standard’s diagram should be used; the welding engineer at the construction site should determine the final welding groove based on the welding procedure qualification specific to their own company.
Follow the welding procedure specification; changes in groove shape are not considered important factors in the weld evaluation criteria.
Logically, the primary principle should be written in WPS. . . The container design specifications include requirements regarding nodes, so some nodes may be marked on the container; it is necessary to follow the design drawings. . . It’s not included in the pipeline design. . . . As specified on WPS. . . You, as a welding engineer, are unqualified. . .
It should be provided by the welding procedure qualification developed by each company itself. . .