Material flow during friction stir spot welding of dissimilar Al2024/Al materials

In the present paper, the material flow and intermixing during friction stir spot welding of dissimilar Al2024/Al materials were investigated. The dissimilar materials had quite different strength. The microstructural evolutions taking place during a series of lap and butt welds were observed. The e...

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Veröffentlicht in:	Materials science and technology 2015-07, Vol.31 (9), p.1077-1087
Hauptverfasser:	Zhang, D., Shibayanagi, T.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminium alloys Aluminum Aluminum base alloys Dissimilar materials Dwell time Evolution Friction stir spot welding Friction stir welding Intermixing Material flow Materials science Rotational Spot welding
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Beschreibung
Zusammenfassung:	In the present paper, the material flow and intermixing during friction stir spot welding of dissimilar Al2024/Al materials were investigated. The dissimilar materials had quite different strength. The microstructural evolutions taking place during a series of lap and butt welds were observed. The effect of penetration depths, dwell time, rotational speed and tool geometry were systematically investigated. The material flow and formation of the intermixed region were explained by a modified model.
ISSN:	0267-0836 1743-2847
DOI:	10.1179/1743284714Y.0000000674