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The square groove is a butt welding joint with the two pieces being flat and parallel to each other. This joint is simple to prepare, economical to use, and provides satisfactory strength but is limited by joint thickness. The closed square butt weld is a type of square-groove joint with no spacing in between the pieces.
Single-V Butt Weld. There are many different types of butt welding joints and they all are named with their particular shape. [3] The joint also known as a square groove weld has many different forms in order to connect pieces of metal together and are all capable of bearing loads. [3]
A major difference between EGW and its cousin, electroslag welding, is that the arc in EGW is not extinguished but instead remains struck throughout the welding process. It is used to make square-groove welds for butt and t-joints, especially in the shipbuilding industry and in the construction of storage tanks.
Butt welds with a square butt joint preparation must have a groove gap of more than 3 mm; in overlap joints the top plate must have a thickness of more than 3 mm. The sensor must be mounted separately from the welding torch. Thus, the groove scanning is mainly carried out in a leading position in front of the torch.
Welds can be geometrically prepared in many different ways. The five basic types of weld joints are the butt joint, lap joint, corner joint, edge joint, and T-joint (a variant of this last is the cruciform joint). Other variations exist as well—for example, double-V preparation joints are characterized by the two pieces of material each ...
Butt joint. A butt joint is a wood joint in which the end of a piece of material is simply placed (or “butted”) against another piece. The butt joint is the simplest joint. An unreinforced butt joint is also the weakest joint, as it provides a limited surface area for gluing and lacks any mechanical interlocking to resist external forces. [1]
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