A consumable electrode, often known as a welding rod, performs precisely what it states. The rods melt and are consumed in the process of bridging the gap between the parent metal and the other metal portion when these filler electrodes are used to weld a connection. Some of the most common welding consumables used in GMAW, MIG welding, flux-cored arc welding (FCAW), and Electroslag welding include stick electrodes, solid wires, and flux-cored wires (ESW).
The second type is the non-consumable electrode.
A non-consumable electrode, on the other hand, keeps its integrity during melting and does not modify its properties. The sole purpose of such an electrode is to generate and maintain an electric arc.
The reason behind non-consumable electrodes' solid structure after welding is that they are made of materials with higher melting temperatures, such as tungsten, graphite, and carbon. The non-consumable rods, on the other hand, can deteriorate over time due to oxidation or vaporization.
The only drawback is that while working with a non-consumable electrode, fillers must be manually provided. Tungsten Inert Gas Welding (TIG), Carbon Arc Welding (CAW), and Atomic Hydrogen Welding are examples of non-consumable electrode applications (AHW).
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