METODO DE SOLDADURA POR ARCO CON ELECTRODO DE TUNGSTENO EN ATMOSFERA GASEOSA Y SU CORRESPONDIENTE SOPLETE

摘要

A gas tungsten arc welding torch having an elongated gas nozzle (18) with an oblong cross section designed for deep groove, narrow gap welding is coupled to a main torch body (16). A gas passage is formed along the welding electrode (10), which includes a detachable end section (42) which captures and supports a replaceable gas lens (30) disposed within the gas passage of the nozzle. The nozzle (18) is sealably mounted (38) to the main torch body and readily detachable for easy replacement during the welding process in which successively wider nozzles (18) are used as the gap to be welded becomes wider with successive weld passes.