kaarkeevituse protsesside/operatsioonide üldnimetus kus soojusallikaks on kokkusurutud kaar sulamatu elektroodi ja liidetavate toorikute vahel (otse- e siirdekaar) või sulamatu elektoodi ja plasmadüüsi vahel (kaud- e mittesiirdekaar) (vt plasmajugakeevitus; plasmakaarkeevitus), an arc welding process that produces colescence of metals by heating them with a constricted arc between an electrode and the workpiece (transferred arc) or the electrode and the constricted nozzle (non-transferred arc); shielding is obtained from the hot, ionized gas issuing from the torch which may be supplemented by an auxiliary source of shielding gas which may be an inert gas or a mixture of gases; pressure may or may not be used, and filler metal may or may not be supplied (see: transferred plasma arc welding; non-transferred plasma arc welding)