sveise

Sveise is the process of joining metal parts by forming a strong local fusion, typically by heating the workpieces to their melting point and adding filler material when needed. In Norwegian and Danish usage, sveise is the verb “to weld,” and the resulting joint is often referred to as a sveis. The term encompasses a range of welding methods that rely on melting, sometimes combined with filler, to produce a single, continuous piece.

Common welding methods include electric arc welding (SMAW/MMA, using a consumable electrode), TIG welding (GTAW, typically with a non-consumable electrode), MIG/MAG welding (GMAW/FCAW, using a continuously fed wire), plasma arc welding, and resistance welding (including spot welding). Soldering and brazing are related metal-joining processes that operate below the melting point of the base metals and are usually distinguished from welding. Many welding processes employ shielding gas or flux to protect the molten pool from oxidation and contamination, improving joint quality.

Materials and joints: welding is widely applied to steel, stainless steel, aluminum, and copper alloys. Common weld joint types include butt, fillet, lap, and corner joints. The joint geometry, fit-up, and welding parameters influence strength and metallurgy, and post-weld heat treatment may be required for some materials.

Applications and safety: welding is essential in construction, shipbuilding, automotive, aerospace, pipelines, and manufacturing, as well as repair work. It presents hazards such as fumes, UV radiation, burns, and fire risk, requiring appropriate PPE, ventilation, and fire prevention. Standards and procedures, such as weld procedure specifications and welder qualification tests, guide quality and safety in industrial contexts.

History: modern welding evolved from forge welding in ancient times to electric arc welding in the late 19th century, with MIG and TIG methods developing in the mid-20th century and broad industry adoption thereafter.