Kaarkeevitus

Kaarkeevitus, also known as arc welding, is a welding process that uses an electric arc to create heat to melt and join metal parts. The arc forms between an electrode and the base material, generating temperatures high enough to melt the metals at the point of contact. As the molten metal cools, it solidifies, forming a strong, continuous weld.

There are several types of arc welding, each with its own specific electrode and shielding method. Shielded Metal Arc Welding (SMAW), commonly known as stick welding, uses a consumable electrode coated in flux. The flux decomposes to provide shielding gas and slag to protect the molten pool from atmospheric contamination. Gas Metal Arc Welding (GMAW), or MIG welding, uses a continuous wire electrode fed through a welding gun, and a shielding gas is supplied separately to protect the weld. Gas Tungsten Arc Welding (GTAW), or TIG welding, uses a non-consumable tungsten electrode and a separate filler metal, with a shielding gas protecting the arc and weld pool. Flux-Cored Arc Welding (FCAW) is similar to MIG welding but uses a tubular electrode filled with flux.

The choice of arc welding process depends on factors such as the type of metals being joined, the thickness of the material, the required weld quality, and the welding environment. Kaarkeevitus is a widely used fabrication process in industries ranging from construction and manufacturing to automotive repair and shipbuilding due to its versatility and the strength of the resulting welds.