kaarlõikus, kus volframelektroodi ja lõigatava metalli vahelise elektrikaare toimel sulanud metall eemaldatakse lõiketsoonist [inert]gaasi joaga, an arc cutting process in which metals are severed by melting them with an arc between a single tungsten (nonconsumable) electrode and the workpiece; shielding is obtained from a gas or gas mixture