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Electrode extension [10]

Electrode extension [10]

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Gas metal arc welding (GMAW) is currently the most widely used arc welding process. It had its beginning in the late 1940s and was developed to make welding a faster, more profitable process. Benefits such as high production rates, high weld quality, ease of automation, and the ability to weld many metals make it attractive to manufacturers. This p...

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... Extension Electrode extension is the distance between the end of the contact tube and the end of the electrode (Fig. 7). The popular non-standard term is electrical stick-out (ESO). It is an important welding parameter for controlling the deposition rate and the bead geometry. An increase in the electrode extension results in an increase in electrical resistance of electrode, causing it to be heated, known as I 2 R heating [9]. This leads to lower ...
Context 2
... Extension Electrode extension is the distance between the end of the contact tube and the end of the electrode (Fig. 7). The popular non-standard term is electrical stick-out (ESO). It is an important welding parameter for controlling the deposition rate and the bead geometry. An increase in the electrode extension results in an increase in electrical resistance of electrode, causing it to be heated, known as I 2 R heating [9]. This leads to lower ...

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GMAW is also known as Metal Inert Gas (MIG). In this type of welding process a continuous and consumable wire electrode is used. A shielding gas generally argon or sometimes mixture of argon and carbon dioxide are blown through a welding gun to the weld zone. GMAW weldments of stainless steel have excellent properties below -196°C and it may be used as semiautomatic or automatic welding. The efficiency of heat utilization in GMAW is much greater than in GTA welding, heat concentration is hence more effective. Welding speeds are higher, penetration deeper, HAZ narrower and distortion less.