Material flow during friction stir spot welding of dissimilar Al2024/Al materials |
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| Authors: | D Zhang T Shibayanagi |
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| Affiliation: | 1. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, No. 30 Xueyuan Road, Beijing 100083, China;2. Department of Materials Science and Engineering, Faculty of Engineering, University of Toyama, Gofuku 3190, Toyama-shi, Toyama 930-8555, Japan |
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| Abstract: | 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. |
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| Keywords: | Friction stir spot welding Aluminium alloys Material flow Intermixing |
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