LASER WELDING METHOD FOR DIFFERENT KIND STEEL

The present invention relates to a laser welding method for heterogeneous steel materials. The laser welding method for heterogeneous steel materials according to an embodiment of the present invention is a method for welding a ferritic steel material and an austenitic steel material by feeding an S...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, TAE YOUNG, SEO, CHI GUK, SON, WON QEUN, KIM, YOUNG GON
Format:	Patent
Sprache:	eng ; kor
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:	The present invention relates to a laser welding method for heterogeneous steel materials. The laser welding method for heterogeneous steel materials according to an embodiment of the present invention is a method for welding a ferritic steel material and an austenitic steel material by feeding an STS 310-based welding wire and irradiating with a laser beam. According to the present invention, the formability of a welded part is improved when the heterogeneous steel materials having different strengths are welded by laser so that a product having the welded part in which cracks are not generated when the product is formed can be produced. [Reference numerals] (AA) Processibility; (BB) Martensite; (CC) Not use a wire; (DD) STS308 wire; (EE) STS 310 wire