hitsauselektrodi

A hitsauselektrodi, or welding electrode, is a consumable component used in various arc welding processes. Its primary function is to conduct the electric current necessary to create the arc and melt the base metal and filler material, forming a weld. Electrodes are typically made of metal, often steel, and can be coated with flux. The flux coating plays a crucial role by producing shielding gases to protect the molten weld pool from atmospheric contamination, stabilizing the arc, and adding alloying elements to the weld metal.

Different types of welding electrodes exist, tailored to specific welding processes and base materials. For instance, shielded metal arc welding (SMAW), also known as stick welding, uses electrodes with a thick flux coating. Gas metal arc welding (GMAW), or MIG welding, employs a continuous wire electrode that is fed through the welding gun. Gas tungsten arc welding (GTAW), or TIG welding, uses a non-consumable tungsten electrode and a separate filler rod, though sometimes considered an electrode in a broader sense. The selection of the correct electrode is critical for achieving a sound and strong weld, influencing factors like weld strength, ductility, and resistance to corrosion. Electrode diameter, material composition, and flux type are all important considerations for welding professionals.