Today i will be discussing on the different types of electric arc welding and their application. Previously, some articles was published on arc welding. Check below:
Different types of arc welding can be categorized into two namely; consumable and non-consumable electrode type. The consumable electrode types include; MIG, SMAW, ESW, SW. while the non-consumable electrode types are TIG and PAW. All these are abbreviations of their names.
Metal inert gas welding (MIG)
These types of arc welding are also known as gas metal arc welding (GMAW). It uses shielding gas to protect the base metals from defilement.
Shielded metal arc welding (SMAW)
These types are also known as manual metal arc welding (MMA or MMAW), flux shielded arc or stick welding. it is achieved by striking the arc between the metal rod (electrode flux coated) and the workpiece. The metal rod and work piece joint surface melt and form a pool. These two-contact form gas and slag, helping to protect the weld pool from surrounding atmosphere. That is why this perfect for joining ferrous and nonferrous metals with a range of material thickness in all positions
Flux core arc welding (FCAW)
This arc welding serves alternative purpose of SMAW, FCAM using a continuous feed of consumable flux core electrode and a constant voltage power supply. It helps in providing constant arc length. These types of arc welding can use a shielding gas or gas created by the flux to provide protection from contamination.
Submerged arc welding (SAW)
This process also uses continuous-fed consumable electrode and a blanket of fusible flux. It becomes conductive when molten provides current path between the parts and the current and electrode. Flux also prevent spatter and sparks while suppressing fumes and ultraviolent radiation.
Electro-slag welding (ESW)
These types of arc welding are welding process is used to vertically weld a thick plate above 25mm in a single. It works on an electric arc before flux helps to extinguishes the arc. This flux melts immediately the wire consumable is fed into the molten pool. It creates a molten slag on top of the pool.
Arc stud welding (SW)
This arc welding process is similar to flash welding, it is use to join nuts or fastener with a flange and nubs that melt in order to produce the joint to another meal piece.
Non-consumable electrode methods
Tungsten inert gas welding (TIG)
This consumable arc welding is known as gas tungsten arc welding (GTAW). It uses tungsten electrode to create the arc and an inert shielding gas to protect the weld and molten pool against atmospheric contamination.
Plasma arc welding (PAW)
Plasma arc welding is similar to TIG welding. it uses an electric arc of non-consumable electrode and an anode, they are placed within the body of the torch. The plasma is obtained from the electric arc. This arc is also used to ionize the gas in the torch, which is pushed through a fine bore hole in the anode to reach the base metal. This separate the plasma from the shielding gas.
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And that is it for this article, types of electric arc welding. I hope you enjoy reading it. Freely ask questions via my comment and please share with other. Thanks for reading!