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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 ...
Welding - General tolerances for welded constructions - Dimensions for lengths and angles - Shape and position ISO 14112: Gas welding equipment - Small kits for gas brazing and welding ISO 14175: Welding consumables — Gases and gas mixtures for fusion welding and allied processes. Replaced EN 439:1994 in Europe. ISO 14341: Welding consumables.
Welding of certain sizes and material types will also require the use of a water/coolant system. There are a large number of factors that can have an influence on the welding result. These aspects include the arc length, magnitude and pulse frequency of the welding current, welding speed, inert shielding gas, parent material, filler material ...
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.
They are then accelerated and formed into a narrow beam by an electric field produced by three electrodes: the electron emitting strap, the cathode connected to the negative pole of the high (accelerating) voltage power supply (30–200 kV) and the anode. The third (Wehnelt or control) electrode is charged negatively with respect to the cathode.
George Clooney is paying tribute to his former “Ocean's Eleven” costar, "gentle soul" Scott L. Schwartz who has died at the age of 65. “I’m sorry to hear that Scott is gone,” Clooney, 63 ...
Johnny C. Taylor Jr. tackles your human resources questions as part of a series for USA TODAY. Taylor is president and CEO of the Society for Human Resource Management, the world's largest HR ...
Their size makes them agile and quick to weave around much larger animals. As family dogs, Corgis are simply the best! Unfortunately, we don't know if any breed specifically herds like this ...