pealikuti asetsevate detailide ühelt poolt liitmine, kui detailid surutakse teineteise vastu erikonstruktsiooniga TIG-põleti abil ja sulatatakse punktidena kokku läbi ülemise detaili (vt punktkaarkeev, spot welding performed by gas tungsten arc welding (GTAW) in which spot weld starts on one surface of one member and burns through to the another member; fusion between the members occurs (see: arc sp