RESISTANCE SPOT WELDED MEMBER, AND RESISTANCE SPOT WELDING METHOD FOR SAME

It is an object to provide a resistance spot welded member and a resistance spot welding method therefor. The resistance spot welded member of the invention includes a plurality of overlapping steel sheets, and at least one of the steel sheets is a galvanized steel sheet having a Zn-based coated lay...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KAWABE, Nao, TAKASHIMA, Katsutoshi, TANIGUCHI, Koichi, SAWANISHI, Chikaumi, YAMAGISHI, Daiki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	It is an object to provide a resistance spot welded member and a resistance spot welding method therefor. The resistance spot welded member of the invention includes a plurality of overlapping steel sheets, and at least one of the steel sheets is a galvanized steel sheet having a Zn-based coated layer on its steel sheet surface. The concentration of Fe in a Zn alloy layer formed between two steel sheets of the plurality of overlapping steel sheets is denoted as CFe (mass%), and the distance from the edge of the nugget to the position at which CFe is measured is denoted as L (pm). Then CFe and L satisfy the relations of the following formulas (1) and (2). CFe≥200