METHOD OF ARC WELDING

An arc welding method is provided to control solidification of a molten pool, using ultrasonic waves from an ultrasonic wave generation part during the submerged arc welding or electro gas welding so as to form crystal grains of a welding part densely regardless of kinds of the bases. Crystal grains...

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Bibliographische Detailangaben
Hauptverfasser:	CHUN, CHANG KUN, CHANG, WOONG SEONG
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:	An arc welding method is provided to control solidification of a molten pool, using ultrasonic waves from an ultrasonic wave generation part during the submerged arc welding or electro gas welding so as to form crystal grains of a welding part densely regardless of kinds of the bases. Crystal grains of a welding part are formed densely by applying ultrasonic vibration to a molten pool during arc welding and controlling solidification. The output of the ultrasonic waves is 3 to 5KW. The arc welding is submerged arc welding. An ultrasonic wave generation part(130) is installed at the upper or side parts of bases(120) to apply ultrasonic waves to the bases.