TIG AUTOMATIC WELDING METHOD FOR THIN WALL CORRUGATED JOINT

PURPOSE:To perform one-pass penetration welding at all positions by repeatedly impressing a slope down type pulse train current consisting of plural pulsative currents to decrease gradually a current value than a preceding pulse as a welding current with the progress of welding. CONSTITUTION:The wel...

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Bibliographische Detailangaben
Hauptverfasser:	KONISHI MASAHIKO, CHISAKI YOICHI, HASHIMOTO YOSHIO, SAKAMOTO MICHITO, HAMADA KATSUHIKO, NISHIKAWA YOSHIHISA, IGARASHI SHINJI, TANAKA KISABURO, KAMEI HIROMASA, NISHIYAMA NOBORU, TAKANO GENTA, KUSHIMOTO SHOJI, INAGAKI TATSUTOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	PURPOSE:To perform one-pass penetration welding at all positions by repeatedly impressing a slope down type pulse train current consisting of plural pulsative currents to decrease gradually a current value than a preceding pulse as a welding current with the progress of welding. CONSTITUTION:The welding current A is made to the pulsating current and the slope down type pulse train current 16 consisting of the plural pulsative currents to reduce gradually the current value than the timewise preceding pulse is impressed repeatedly on between a tungsten welding electrode and corrugated tabular members to be welded with the progress of welding. by this method, a molten pool is formed for every pulse train current 16 and adjacent molten pools are connected with each other and continuous weld beads are formed.