TANDEM DOUBLE WIRE WELDING APPLICATION AND PROCESS IN SHIPBUILDING SKEGGING WELDING
Introduction
Shipbuilding Skegging Welding is a kind of welding that has been widely used in modern shipbuilding industry. In this process, the thermally cut plates that have been previously knocked out are jointed and the welding seam is formed by melting them with the heat input of electric arc. In recent years, with the development of welding technology, Tandem double wire welding has been used in many shipbuilding skegging welding works. It shows superior welding performance and welding efficiency. This article tried to analyze and discuss the application and process of Tandem double wire welding in shipbuilding skegging welding.
Application of Tandem Double Wire Welding in Shipbuilding Skegging Welding
1. Superior welding performance
Tandem double wire welding’s welding performance is superior compared with ordinary single wire welding, due to the fact that the use of more welding wires can increase the amount of arc input, making the welding pool larger, which effectively improves the welding speed and welding efficiency. Moreover, the addition of a second wire results in a more concentrated heat input and better slag and welding uniformity, which ensures good welding performance and aesthetically pleasing appearance.
2. High welding efficiency
Tandem double wire welding offers a higher welding efficiency compared to single wire welding. The use of more welding wires increases the amount of arc input, which leads to increased welding speed. In shipbuilding skegging welding, this can provide a great advantage, as most welds have to be completed rather quickly.
3. Decreased welding distortion
Compared with single wire welding, Tandem double wire welding decreases welding distortion significantly, as the use of two welding wires increases the heat input in a concentrated area, which results in better slag and welding surface uniformity. This feature is highly beneficial in shipbuilding skegging welding, as it decreases welding distortion and improves welding quality.
Process of Tandem Double Wire Welding in Shipbuilding Skegging Welding
1. Structural preparation
The first step of the Tandem double wire welding process is structural preparation. The plates that have been cut should be prepared for welding by cleaning off dirt, grease and other debris. It is also important to ensure that the structural parts are aligned correctly, and that the plates have the appropriate gap between them.
2. Welding preparation
The next step is welding preparation. This involves preparing the welding equipment and selecting the correct welding parameters. In this step, the appropriate welding current, voltage and speed must be selected, ensuring that the welding parameters are suitable for the specific material and welding position.
3. Welding
Once the welding equipment is set up and the welding parameters are established, the welding can begin. In this step, the two welding wires should be brought together over the weld seam, creating a welding arc between them. As the welding progresses, the wires should be continuously moved according to the predetermined welding joint.
Conclusion
Tandem double wire welding has become increasingly popular due to its superior welding performance and high welding efficiency. It is widely used in shipbuilding skegging welding, as it provides a great advantage in terms of decreased welding distortion, increased welding speed and improved welding quality. This article has analyzed and discussed the application and process of Tandem double wire welding in shipbuilding skegging welding.
