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Welding is a fabrication process that joins materials, ... The five basic types of weld joints are the butt ... Ovens or electric heating tools can be used to melt ...
Oxy-fuel welding torch ... The torch is the tool that the welder holds and manipulates to make the weld. ... Two basic types of torches are positive pressure type and ...
Gas Metal Arc Welding [3] 131 135: GMAW Continuous consumable electrode and shielding gas: Industry Gas Tungsten Arc Welding [4] 141: GTAW Nonconsumable electrode, slow, high quality welds Aerospace, Construction (piping), Tool and Die Plasma Arc Welding: 15: PAW Nonconsumable electrode, constricted arc Tubing, instrumentation Shielded Metal ...
Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.
Close-up view of a friction stir weld tack tool. The bulkhead and nosecone of the Orion spacecraft are joined using friction stir welding. Joint designs. Friction stir welding (FSW) is a solid-state joining process that uses a non-consumable tool to join two facing workpieces without melting the workpiece material.
GTAW weld area. Manual gas tungsten arc welding is a relatively difficult welding method, due to the coordination required by the welder. Similar to torch welding, GTAW normally requires two hands, since most applications require that the welder manually feed a filler metal into the weld area with one hand while manipulating the welding torch in the other.