Dissimilar impact spot welding of high-thickness aluminum-steel sheets using vaporizing foil actuators

被引：2

作者：

Kapil, Angshuman ^{[1
,2
]}

Vivek, Anupam ^{[2
]}

Daehn, Glenn ^{[2
]}

机构：

[1] Katholieke Univ Leuven, Dept Mat Engn, Campus De Nayer, B-2860 St Katelijne Waver, Belgium

[2] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA

来源：

MANUFACTURING LETTERS | 2024年 / 41卷

关键词：

Dissimilar metal joining; AA6111; HSLA; 340; steel; Vaporizing foil actuator welding (VFAW); Heat treatment; Weld interface; STRENGTH-LOW-ALLOY; FATIGUE PROPERTIES; MICROSTRUCTURE; AL;

D O I：

10.1016/j.mfglet.2024.08.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The automotive industry's shift towards multi-material structures necessitates efficient joining of aluminum and steel, yet techniques for high-thickness (>2 mm) dissimilar AA6XXX-HSLA steel pairs, remain underexplored. This study explores vaporizing foil actuator welding for spot welding 2.5 mm AA6111HSLA 340 steel pairs, demonstrating successful joint formation via lap-shear testing and microscopy. Post-weld heat treatment influences joint strength and fracture behavior, with intermetallic compound (IMC) formation at the weld interface affecting mechanical properties. IMC cracking is observed in heat-treated samples. Fracture analysis reveals material transfer and secondary brazing action outside the weld zone. VFAW lap-shear failure loads outperform other joining techniques. (c) 2024 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

引用

页码：38 / 45

页数：8

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