Arc welding, welding with gas welding, welding by electron welding are some welding processes that are used around the world. It is not possible to know the exact number of welding processes because they are being developed every day.

Arc welding. This welding process is also called shielded metal arc welding (SMAW). The welding fluid in this case is a flux that protects the welding surface from corrosion and oxidation during welding. In addition, these prevent contamination of the welding atmosphere.

Welding with gas is carried out by heating one of the electrodes to such an extent that when it is brought into contact with the base material, a fusion joint is formed due to heat conduction. Electrodes used in welding consist of filler metals with or without shielding gases and stabilizers. Gas welding can be: oxyacetylene welding which uses acetylene and oxygen as gases; carbon arc welding using carbon arcs between two carbon electrodes; electric arc welding using inert gases such as argon, helium and krypton. The welding rod used in welding with gas is made of metal alloys with small amounts of filler metals.

It is also called plasma welding or electron beam welding because it uses a highly concentrated electric beam to melt the base metal. In welding by electron, welding occurs by heating the base material using an intense high voltage current that flows between two electrodes that are separated from each other by a short distance. This process requires pure tungsten for welding electrodes since they should not contaminate the welding surface during welding or heat up to higher temperatures than necessary for melting the workpiece.

The first type is arc welding, this makes use of an electric current that flows through a “welding”

The second welding process is gas welding. Welding with gas is carried out by heating one of the electrodes to such an extent that when it is brought into contact with the base material, a fusion joint is formed due to heat conduction. Electrodes used in welding consist of filler metals with or without shielding gases and stabilizers. Gas welding can be oxyacetylene welding which uses acetylene and oxygen as gases; carbon arc welding using carbon arcs between two carbon electrodes; electric arc welding using inert gases such as argon, helium and krypton. The welding rod used in welding with gas is made of metal alloys with small amounts of filler metals.

The third type of welding is electron beam welding, this makes use of welding which is carried out by heat generated by an intense high voltage current flowing between two welding electrodes. In welding with electrons, welding occurs by heating the base material using an intense high voltage current that flows between two electrodes that are separated from each other by a short distance. This process requires pure tungsten for welding electrodes since they should not contaminate the welding surface during welding or heat up to higher temperatures than necessary for melting the workpiece.

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