Welding is undoubtedly one of the most significant industrial processes practiced in the modern world. It is essential for large as well as small scale industrial manufacturing processes. Among the several welding techniques, one of the most preferred and used techniques is dual shield welding (DSW).
It is a process that allows fusion between two metals of different geometries. Statistics suggest that the global revenue generated from dual shield welding was estimated to be around $1
91 billion in 2018, and is estimated to reach approximately $133 billion by 2022, experiencing a compound annual growth rate of
5% during the period. This article will help you explore in detail about dual shield welding technology, including what it is, its types and its various industrial applications. So keep reading to have a better understanding of this incredible welding technology!
What is Dual Shield Welding?
Dual Shield welding is an arc welding process that combines two flux-cored wires and an externally supplied gas for shielding to form a weld. The process has been in use for decades and is used for an array of applications, from welding general steel structures to those that require superior mechanical properties, superior heat and crack resistance and superior cracking toughness.How Does Dual Shield Welding Work?
Dual Shield welding involves two non-consumable flux-cored electrodes.One of the electrodes (the “outer” electrode) is used to generate a layer of flux that shields the welding arc, while the other (the “inner” electrode) is used to form the weld puddle. The shielding gas provides an additional layer of protection to protect the weld from the environment, while the electrodes provide the heat and current used to form the weld itself.
Benefits of Dual Shield Welding
Dual Shield welding offers several advantages over other welding processes.Here are some of the key benefits:
- Increased productivity – Dual Shield welding requires less skill and is faster than many other welding processes, resulting in greater overall productivity.
- Improved mechanical properties – The welds produced by Dual Shield welding generally have superior mechanical properties compared to other welding processes.
- Better welds – Dual Shield welding produces welds with superior heat and crack resistance and superior cracking toughness, making it ideal for use in applications that require high-quality welds.
- Less spatter – The flux-cored wires used in Dual Shield welding eliminate the need for additional spatter protection, resulting in cleaner, more attractive welds.
Drawbacks of Dual Shield Welding
Dual Shield welding does have some drawbacks, most notably the need to use two different electrodes and a shielding gas canister, which can be expensive and require additional time to set up.Additionally, the process can produce a large amount of fumes, so it is important to ensure that proper ventilation is used to protect the welders during welding.
Conclusion
Dual Shield welding is a highly efficient and reliable welding process that can be used for an array of applications.The process offers superior weld quality, improved productivity and cost savings, making it an ideal choice for many welding projects. Citations: https://www. millerwelds. com/resources/welding-processes/dual-shield-weldinghttps://www. welding-advisers. com/dual-shield-welding. htmlhttps://www. hobartbrothers. com/products/filler-metals/understanding-the-benefits-of-dual-shield-welding/