Arc Welding and Cutting
Arc welding is the process in which fusion is produced by heating with an electric arc that is generated between an electrode and the surface of the base metal.
Arc cutting is the process in which the cutting or removal of metals is done by melting with the heat of an arc between an electrode and base metal.
Arc welding and cutting types include:
- Flux Core Arc Welding (FCAW) is an arc welding process where coalescence is produced by heating with an arc between a continuous filler metal electrode and the work.
- Submerged Arc Welding (SAW) also known as Sub Arc and automatic welding. This is an arc welding process which produces coalescence by heating with an arc or arcs between a bare metal electrode or electrodes and the work.
- Shielded Metal Arc (SMAW) is an arc welding process which produces coalescence by heating with an electric arc between a covered metal electrode and the surface of the base metal.
- Gas Metal Arc (GMAW or MIG): This is also called stick welding. This is an arc welding process where coalescence is produced by heating with an arc between a continuous filler metal electrode (typically a steel alloy wire) and the work.
- Gas Tungsten Arc/Tungsten Inert Gas Welding (GTAW or TIG), also called Heli-arc welding, is an arc welding process where coalescence is produced by heating with an arc between a single tungsten electrode and the work.
- Plasma Arc Welding, also called plasma welding, is an arc welding process similar to gas tungsten arc welding (GTAW). The electric arc is formed between an electrode (which is usually but not always made of sintered tungsten) and the workpiece.
- Plasmas Arc Cutting: This is also called plasma cutting. The metal is cut by melting a localized area with a constricted arc and removing the molten material with a high-velocity jet of hot, ionized gas in this process.
- Carbon Arc Cutting: This is also called Arc Gouging and Air-arcing.
For more information on arc welding, read Safe Arc Welding by Lincoln Electric.
Knowledge Check Choose the best answer for the question.
2-2. The process in which fusion is produced by heating with an electric arc that is generated between an electrode and the surface of the base metal is called _____.
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