Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding

The demand for joining dissimilar metals has exponentially increased due to the global concerns about climate change, especially for electric vehicles in the automotive industry. Ultrasonic welding (USW) surges as a very promising technique to join dissimilar metals, providing strength and electric...

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Main Authors: Rafael Gomes Nunes Silva, Sylvia De Meester, Koen Faes, Wim De Waele
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Journal of Manufacturing and Materials Processing
Subjects:
Online Access:https://www.mdpi.com/2504-4494/6/1/6
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author Rafael Gomes Nunes Silva
Sylvia De Meester
Koen Faes
Wim De Waele
author_facet Rafael Gomes Nunes Silva
Sylvia De Meester
Koen Faes
Wim De Waele
author_sort Rafael Gomes Nunes Silva
collection DOAJ
description The demand for joining dissimilar metals has exponentially increased due to the global concerns about climate change, especially for electric vehicles in the automotive industry. Ultrasonic welding (USW) surges as a very promising technique to join dissimilar metals, providing strength and electric conductivity, in addition to avoid metallurgical defects, such as the formation of intermetallic compounds, brittle phases and porosities. However, USW is a very sensitive process, which depends on many parameters. This work evaluates the impact of the process parameters on the quality of ultrasonic spot welds between copper and aluminium plates. The weld quality is assessed based on the tensile strength of the joints and metallographic examination of the weld cross-sections. Furthermore, the welding energy is examined for the different welding conditions. This is done to evaluate the influence of each parameter on the heat input resulting from friction at the weld interface and on the weld quality. From the obtained results, it was possible to optimise parameters to achieve satisfactory weld quality in 1.0 mm thick Al–Cu plate joints in terms of mechanical and metallurgical properties.
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spelling doaj.art-46871e693a8b45e797208b0d068575812023-11-23T20:33:35ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942022-01-0161610.3390/jmmp6010006Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar WeldingRafael Gomes Nunes Silva0Sylvia De Meester1Koen Faes2Wim De Waele3Belgian Welding Institute, 9050 Ghent, BelgiumDepartment of Electromechanical, Systems and Material Engineering, Ghent University, 9050 Ghent, BelgiumBelgian Welding Institute, 9050 Ghent, BelgiumDepartment of Electromechanical, Systems and Material Engineering, Ghent University, 9050 Ghent, BelgiumThe demand for joining dissimilar metals has exponentially increased due to the global concerns about climate change, especially for electric vehicles in the automotive industry. Ultrasonic welding (USW) surges as a very promising technique to join dissimilar metals, providing strength and electric conductivity, in addition to avoid metallurgical defects, such as the formation of intermetallic compounds, brittle phases and porosities. However, USW is a very sensitive process, which depends on many parameters. This work evaluates the impact of the process parameters on the quality of ultrasonic spot welds between copper and aluminium plates. The weld quality is assessed based on the tensile strength of the joints and metallographic examination of the weld cross-sections. Furthermore, the welding energy is examined for the different welding conditions. This is done to evaluate the influence of each parameter on the heat input resulting from friction at the weld interface and on the weld quality. From the obtained results, it was possible to optimise parameters to achieve satisfactory weld quality in 1.0 mm thick Al–Cu plate joints in terms of mechanical and metallurgical properties.https://www.mdpi.com/2504-4494/6/1/6Cu–Al weldingmetallographic examinationparameter optimisationtensile strengthUSW
spellingShingle Rafael Gomes Nunes Silva
Sylvia De Meester
Koen Faes
Wim De Waele
Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding
Journal of Manufacturing and Materials Processing
Cu–Al welding
metallographic examination
parameter optimisation
tensile strength
USW
title Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding
title_full Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding
title_fullStr Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding
title_full_unstemmed Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding
title_short Development and Evaluation of the Ultrasonic Welding Process for Copper-Aluminium Dissimilar Welding
title_sort development and evaluation of the ultrasonic welding process for copper aluminium dissimilar welding
topic Cu–Al welding
metallographic examination
parameter optimisation
tensile strength
USW
url https://www.mdpi.com/2504-4494/6/1/6
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AT koenfaes developmentandevaluationoftheultrasonicweldingprocessforcopperaluminiumdissimilarwelding
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