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Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding [1] or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld.
6013 aluminium alloy consist of magnesium, silicon, copper, manganese, iron, zinc, chromium, and titanium as minor alloying elements. [ 1 ] Chemical Composition
In arc welding, an electrode is used to conduct current through a workpiece to fuse two pieces together. Depending upon the process, the electrode is either consumable, in the case of gas metal arc welding or shielded metal arc welding, or non-consumable, such as in gas tungsten arc welding. For a direct current system, the weld rod or stick ...
A cellulose electrode is a welding electrode that has a coating containing organic materials. About 30% of the coating weight is cellulose.In some countries, paper pulp and wood powder are added to the coating in certain ratios to reduce the amount of pure cellulose.
Operator skill is a major factor as improper electrode manipulation or machine setup can cause porosity. Flux-cored arc welding machine. Another type of FCAW uses a shielding gas that must be supplied by an external source. This is known informally as "dual shield" welding. This type of FCAW was developed primarily for welding structural steels.
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.
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