CO2 and Argon-Arc Welding

CO2 and argon-arc welding are welding joint techniques using protective gases. Used for pro-cessing of metals having rapid oxidation in the process of heating to high temperatures.

Shielding gases in the process of welding

Metal welding uses significant temperature elevation when the oxidation processes are intensified. It results in the generation of the oxide film on the metal surface: the longer the oxidation reaction the more complicated the material welding is. Application of carbon dioxide or argon enables the isolation of the welding area from oxygen exposure. Gases actually displace it from the working area preventing the oxidation process. 

Argon-arc and СО2 welding are used when a reliable and thorough connection of thin elements is required (for example, in the automobile industry) as well as for operation with difficult-to-weld metals, in particular aluminum.

Carbon dioxide welding

Carbon dioxide welding is performed using a gas cylinder and wire as filler material that includes chrome, silicon, and other metals in its composition (the filler material is to be chosen based on materials of the components to be welded).

The process is as follows:

  • Electrical arc ensures metal melting in the welding area;
  • Simultaneously carbon dioxide is supplied to the working area preventing oxygen from penetration;
  • The filler material in reaction with the metal to be welded forms a stable joint resistant to oxidation.

The demand for CO2 welding is ensured by its efficiency, reliability, and quality. The formed seams are smooth; the strength of the joint is not in doubt. The welding process is quite fast and ensures high performance of the technique. And finally, the low price of carbon dioxide makes CO2 welding method one of the cheapest.

Argon arc welding technique

Argon arc welding is performed using argon, an inert gas that does not react with other elements including oxygen. Just as in the case of CO2 welding the technique involves the use of filler wire. Argon does not affect the melted metal and does not change its properties. In addition, argon is heavier than other gases in air composition so it easily displaces all kinds of impurities from the welding zone.

Argon welding is performed in several stages:

  • the impact of the electric arc results in temperature increase in the welding zone;
  • the supply of argon to the weld pool restricts the exposure of the electric arc;
  • the filler material, when melted, reacts with metal, as a result, it provides an oxidation-resistant joint and precision of the weld.

The advantages of argon arc welding include high efficiency, the ability to form thin, thorough seams, as well as the protection of components from deformation due to the low heating temperature.

CO2 and argon arc welding in Ivkonstruktiv LLC

The company Ivkonstruktiv LLC performs welding of metals with argon and in carbon dioxide. Up-to-date welding equipment including welding inverters Svarog MIG-2500 and Grovers WSME-200 PULSE AC/DC, welding unit Svarog REAL TIG 200, and semi-automatic unit for welding aluminum Triton Alumig 250P Dpulse Synergic are at our disposal. We work with non-ferrous metals, and stainless alloys. We guarantee high-quality and fast execution of orders. For further information on ordering welding services, please, contact us by phone or E-mail.

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