The spot welding characteristics of VAN-QN (80), a dual-phase HSLA steel, were examined with regard to the strength and ductility of spot welds under static, impact and cyclic loading and compared to a conventional V-N HSLA steel and SAE 1008 low carbon steel. The maximum tensile shear strength of VAN-QN (80) spot welds was found to be proportional to the thickness and ultimate tensile strength of the base metal. VAN-QN (80) spot welds, therefore, were only slightly lower in strength than those in a conventional 80 Ksi yield strength HSLA steel but up to twice the strength of welds in low carbon steel. Weld ductility was lower for VAN-QN (80) than for low carbon steel but greater than for conventional HSLA steel and increased with material thickness. The impact and fatigue properties of VAN-QN (80) welds were similar to those in conventional HSLA and low carbon steels. (DePo)
Spot weldability of dual-phase steel
Punktschweissbarkeit von hochfestem niedriglegiertem Stahl
SAE-Papers ; 1-13
1979
13 Seiten, 19 Bilder, 3 Tabellen, 10 Quellen
Conference paper
English
Spot weldability of dual-phase steel
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