Problems with welded joints in high-pressure vessels?
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Why are U-grooves commonly used for weld joints of high-pressure vessels in categories A, B, and D?
If the weld joint is thick, the outer width of the V-groove is too large, resulting in excessive welding volume.
One of the principles for designing grooves is to minimize the amount of welding filler.
It’s not due to high pressure, but rather to thickness.
My friend, processing U-shaped grooves is quite difficult, especially Type D U-shaped grooves. How does your company handle such processing?
A double V groove is also an option; it depends on the processing capabilities and equipment available
What are the benefits of doing this? ? ? ?
Using a U-shaped groove for thick plates reduces the amount of filler metal required (there used to be a concept related to the ratio of filler metal), as well as minimizing the welding workload； Reduce stress and welding deformation caused by welding. The processing of U-shaped grooves includes methods such as edge planing, turning, and boring.
You can try drawing a single V-groove and see how wide the groove is……