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Gas tungsten arc welding (GTAW, also known as tungsten inert gas welding or TIG, and heliarc welding when helium is used) is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas (argon or ...
The smallest electrodes, generally up to 1.14 mm (0.045 in) [18] are associated with the short-circuiting metal transfer process, while the most common spray-transfer process mode electrodes are usually at least 0.9 mm (0.035 in). [19] [20]
These include using the proper weld program in the orbital welding power supply or controller to match the settings to the pipe size, wall thickness, and tube material. Other key factors include the pipe preparation and face, the correct positioning of the weld head on the tube, and the amount of oxygen present during the welding process.
Electrodes are available in straight lengths and coils. Their diameters may be 1.6, 2.0, 2.4, 3, 4.0, 4.8, and 6.4 mm. The approximate value of currents to weld with 1.6, 3.2 and 6.4 mm diameter electrodes are 150–350, 250–800 and 650–1350 amps respectively.
Watson recorded 620 receiving yards on 29 receptions with two touchdowns in 15 games this season with the Packers.
Antibiotic use was not associated with an increased risk of cognitive impairment and dementia in healthy older adults, according to a recent study.
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