Sähköhitsauksia

Sähköhitsauksia, commonly referred to as electric welding, is a fabrication process that joins metals by using a high-temperature electric arc to melt the parent metals and a filler material. The intense heat generated by the electric arc causes the edges of the pieces to be joined, along with the filler metal, to melt and fuse together. As the molten metal cools, it solidifies, forming a strong and permanent joint.

There are several common types of electric welding. Shielded Metal Arc Welding (SMAW), often called stick welding, uses a consumable electrode coated in flux. The flux provides shielding gas to protect the molten weld pool from atmospheric contamination. Gas Metal Arc Welding (GMAW), or MIG welding, uses a continuous solid wire electrode that is fed through a welding gun. A shielding gas, typically argon or a mixture of argon and carbon dioxide, is fed through the gun to protect the weld. Gas Tungsten Arc Welding (GTAW), or TIG welding, uses a non-consumable tungsten electrode to produce the arc. A separate filler rod is often used to add material to the weld joint, and a shielding gas, usually argon, protects the weld area.

Electric welding is widely used in various industries, including construction, automotive manufacturing, shipbuilding, and repair. The choice of welding method depends on factors such as the type and thickness of the metals being joined, the required strength of the weld, and the welding environment. Proper safety precautions, including the use of personal protective equipment like welding helmets, gloves, and protective clothing, are essential when performing electric welding due to the intense heat, ultraviolet radiation, and potential for sparks and fumes.