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Welding of certain sizes and material types will also require a water/coolant system. There are a large number of factors that influence 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, weld preparation, and ...
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.
Manufacturers also include the strength that the weld must be. This is indicated by a letter and number combination just before the flat line. Examples of this are "E70" meaning the arc electrode must have a tensile strength of 70,000 pounds-force per square inch (480,000 kPa; 4,900 kgf/cm 2). There are also symbols that describe the aesthetics ...
Plasma arc welding is an advanced form of tungsten inert gas (TIG) welding. In the case of TIG, it is an open arc shielded by argon or helium, whereas plasma uses a special torch where the nozzle is used to constrict the arc while the shielding gas is separately supplied by the torch. The arc is constricted with the help of a water-cooled small ...
A combination of an exceptionally dry period - downtown Los Angeles has only received 0.16 inches (0.4cm) of rain since October - and powerful offshore gusts known as the Santa Ana winds have ...
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O-5 (95% argon/5% oxygen) is the most common gas for general carbon steel welding. Higher oxygen content allows higher speed of welding. More than 5% oxygen makes the shielding gas oxidize the electrode, which can lead to porosity in the deposit if the electrode does not contain sufficient deoxidizers.