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2019 | OriginalPaper | Chapter

4. Microstructure and Chemical Analysis of Friction Stir Spot Welding Between Aluminium and Copper (Case Study)

Authors : Mukuna Patrick Mubiayi, Esther Titilayo Akinlabi, Mamookho Elizabeth Makhatha

Published in: Current Trends in Friction Stir Welding (FSW) and Friction Stir Spot Welding (FSSW)

Publisher: Springer International Publishing

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Abstract

The Friction stir spot welding technique was used to produce lap spot welds of AA1060 and C11000. Various process parameters and tool geometries were used to fabricate the welds. The microstructures of the produced spot welds produced were examined by using optical microscopy (OM) and scanning electron microscopy (SEM). The chemical analysis of the cross sections of the welds was investigated by using energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). A good Al/Cu material mixing was observed in most of the fabricated spot welds. The presence of copper rings on both sides of the keyhole with different lengths was observed in all the spot welds. The mapping using energy dispersive spectroscopy of a region of the keyhole/copper rings and the stir zone showed the presence of copper particles in the aluminium matrix. However. Very few aluminium particles were found in the copper rings. Intermetallic compounds were found in some of the spot welds.

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previous chapter Friction Stir Welding and Friction Stir Spot Welding of Similar Aluminium and Copper Alloys
next chapter Microhardness Profile and Shear Tensile Test of FSSWelds AA1060 to C11000 (Case Study)
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Metadata
Title
Microstructure and Chemical Analysis of Friction Stir Spot Welding Between Aluminium and Copper (Case Study)
Authors
Mukuna Patrick Mubiayi
Esther Titilayo Akinlabi
Mamookho Elizabeth Makhatha
Copyright Year
2019
Book
Current Trends in Friction Stir Welding (FSW) and Friction Stir Spot Welding (FSSW)

Print ISBN: 978-3-319-92749-7

Electronic ISBN: 978-3-319-92750-3

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-319-92750-3_4

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