Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds

Mukuna Patrick Mubiayi; Esther Titilayo Akinlabi; Mamookho Elizabeth Makhatha

doi:10.1109/ICMIMT.2017.7917432

Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds

University of Johannesburg

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

12 Citations (Scopus)

Abstract

Dissimilar metal joining methods are essential for the manufacturing of a various structures and parts in the industries. Friction stir spot welding process was performed on 3 mm thick AA1060 and C11000. This paper presents the results on the microstructure, chemical analysis and electrical resistivities of the produced joints. The microstructure showed a contrast between the two different materials namely copper and aluminium and the presence of a copper ring (hook) in all the produced spot welds. The presence of copper particles in the aluminium matrix was observed in most of the welds. The conducted energy dispersive spectroscopy (EDS) analysis confirmed the presence intermetallic compounds. It was observed that, the spot weld produced using 800 rpm and 1 mm shoulder plunge depth exhibited a low electrical resistivity value of 0.009 μΩ, which shows an appreciation of 0.011 μΩ (55 %), compared to the average of the parent materials (0.020 μΩ). This could be an attractive option for electrical applications.

Original language	English
Title of host publication	Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	42-47
Number of pages	6
ISBN (Electronic)	9781538603772
DOIs	https://doi.org/10.1109/ICMIMT.2017.7917432
Publication status	Published - 2 May 2017
Event	8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017 - Cape Town, South Africa Duration: 3 Feb 2017 → 6 Feb 2017

Publication series

Name	Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

Conference

Conference	8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017
Country/Territory	South Africa
City	Cape Town
Period	3/02/17 → 6/02/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

Aluminium
Copper
Electrical resistivity
FSSW
Intermetallics
Microstructure

ASJC Scopus subject areas

Artificial Intelligence
Computer Science Applications
Mechanical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1109/ICMIMT.2017.7917432

Cite this

Mubiayi, M. P., Akinlabi, E. T., & Makhatha, M. E. (2017). Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds. In Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017 (pp. 42-47). Article 7917432 (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICMIMT.2017.7917432

Mubiayi, Mukuna Patrick ; Akinlabi, Esther Titilayo ; Makhatha, Mamookho Elizabeth. / Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds. Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 42-47 (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017).

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title = "Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds",

abstract = "Dissimilar metal joining methods are essential for the manufacturing of a various structures and parts in the industries. Friction stir spot welding process was performed on 3 mm thick AA1060 and C11000. This paper presents the results on the microstructure, chemical analysis and electrical resistivities of the produced joints. The microstructure showed a contrast between the two different materials namely copper and aluminium and the presence of a copper ring (hook) in all the produced spot welds. The presence of copper particles in the aluminium matrix was observed in most of the welds. The conducted energy dispersive spectroscopy (EDS) analysis confirmed the presence intermetallic compounds. It was observed that, the spot weld produced using 800 rpm and 1 mm shoulder plunge depth exhibited a low electrical resistivity value of 0.009 μΩ, which shows an appreciation of 0.011 μΩ (55 \%), compared to the average of the parent materials (0.020 μΩ). This could be an attractive option for electrical applications.",

keywords = "Aluminium, Copper, Electrical resistivity, FSSW, Intermetallics, Microstructure",

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Mubiayi, MP, Akinlabi, ET & Makhatha, ME 2017, Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds. in Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017., 7917432, Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017, Institute of Electrical and Electronics Engineers Inc., pp. 42-47, 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017, Cape Town, South Africa, 3/02/17. https://doi.org/10.1109/ICMIMT.2017.7917432

Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds. / Mubiayi, Mukuna Patrick; Akinlabi, Esther Titilayo ; Makhatha, Mamookho Elizabeth.
Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 42-47 7917432 (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds

AU - Mubiayi, Mukuna Patrick

AU - Akinlabi, Esther Titilayo

AU - Makhatha, Mamookho Elizabeth

PY - 2017/5/2

Y1 - 2017/5/2

N2 - Dissimilar metal joining methods are essential for the manufacturing of a various structures and parts in the industries. Friction stir spot welding process was performed on 3 mm thick AA1060 and C11000. This paper presents the results on the microstructure, chemical analysis and electrical resistivities of the produced joints. The microstructure showed a contrast between the two different materials namely copper and aluminium and the presence of a copper ring (hook) in all the produced spot welds. The presence of copper particles in the aluminium matrix was observed in most of the welds. The conducted energy dispersive spectroscopy (EDS) analysis confirmed the presence intermetallic compounds. It was observed that, the spot weld produced using 800 rpm and 1 mm shoulder plunge depth exhibited a low electrical resistivity value of 0.009 μΩ, which shows an appreciation of 0.011 μΩ (55 %), compared to the average of the parent materials (0.020 μΩ). This could be an attractive option for electrical applications.

AB - Dissimilar metal joining methods are essential for the manufacturing of a various structures and parts in the industries. Friction stir spot welding process was performed on 3 mm thick AA1060 and C11000. This paper presents the results on the microstructure, chemical analysis and electrical resistivities of the produced joints. The microstructure showed a contrast between the two different materials namely copper and aluminium and the presence of a copper ring (hook) in all the produced spot welds. The presence of copper particles in the aluminium matrix was observed in most of the welds. The conducted energy dispersive spectroscopy (EDS) analysis confirmed the presence intermetallic compounds. It was observed that, the spot weld produced using 800 rpm and 1 mm shoulder plunge depth exhibited a low electrical resistivity value of 0.009 μΩ, which shows an appreciation of 0.011 μΩ (55 %), compared to the average of the parent materials (0.020 μΩ). This could be an attractive option for electrical applications.

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KW - Electrical resistivity

KW - FSSW

KW - Intermetallics

KW - Microstructure

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M3 - Conference contribution

AN - SCOPUS:85020053367

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SP - 42

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BT - Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017

Y2 - 3 February 2017 through 6 February 2017

ER -

Mubiayi MP, Akinlabi ET , Makhatha ME. Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds. In Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 42-47. 7917432. (Proceedings of 2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2017). doi: 10.1109/ICMIMT.2017.7917432

Microstructure and electrical resistivity properties of copper and aluminium friction stir spot welds

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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