noun
arc cutting
Technical term in welding and metalworking for cutting metal using an electric arc.
アーク切断は厚い鋼板の加工に使われる。
Arc cutting is used for processing thick steel plates.
アーク溶接 (arc welding) joins metals, while アーク切断 (arc cutting) severs them.
Compound of アーク (arc, from English 'arc') and 切断 (cutting, severance).