Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050

Pereira, António B.; Cabrinha, Ana; Rocha, Fábio; Marques, Pedro; Fernandes, Fábio A. O.; Alves de Sousa, Ricardo J.

doi:10.3390/met9010102

Open AccessArticle

Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050

by

António B. Pereira

^1,*

,

Ana Cabrinha

¹,

Fábio Rocha

¹,

Pedro Marques

^1,2

,

Fábio A. O. Fernandes

¹

and

Ricardo J. Alves de Sousa

¹

TEMA–Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal

²

Industrial Engineering and Management, Universidade Lusófona, Campo Grande 376, 1749 Lisbon, Portugal

^*

Author to whom correspondence should be addressed.

Metals 2019, 9(1), 102; https://doi.org/10.3390/met9010102

Submission received: 16 December 2018 / Revised: 11 January 2019 / Accepted: 14 January 2019 / Published: 18 January 2019

(This article belongs to the Special Issue Dissimilar Metal Welding)

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Abstract

The welding of dissimilar metals was carried out using a pulsed Nd: YAG laser to join DP1000 steel and an aluminum alloy 1050 H111. Two sheets of each metal, with 30 × 14 × 1 mm³, were lap welded, since butt welding proved to be nearly impossible due to the huge thermal conductivity differences and melting temperature differences of these materials. The aim of this research was to find the optimal laser welding parameters based on the mechanical and microstructure investigations. Thus, the welded samples were then subjected to tensile testing to evaluate the quality of the joining operation. The best set of welding parameters was replicated, and the welding joint obtained using these proper parameters was carefully analyzed using optical and scanning electron microscopes. Despite the predicted difficulties of welding two distinct metals, good quality welded joints were achieved. Additionally, some samples performed satisfactorily well in the mechanical tests, reaching tensile strengths close to the original 1050 aluminum alloy.

Keywords: laser welding; pulsed Nd:YAG laser; DP1000 steel; 1050 aluminum alloy; dissimilar materials welding; steel/aluminum joint

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MDPI and ACS Style

Pereira, A.B.; Cabrinha, A.; Rocha, F.; Marques, P.; Fernandes, F.A.O.; Alves de Sousa, R.J. Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050. Metals 2019, 9, 102. https://doi.org/10.3390/met9010102

AMA Style

Pereira AB, Cabrinha A, Rocha F, Marques P, Fernandes FAO, Alves de Sousa RJ. Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050. Metals. 2019; 9(1):102. https://doi.org/10.3390/met9010102

Chicago/Turabian Style

Pereira, António B., Ana Cabrinha, Fábio Rocha, Pedro Marques, Fábio A. O. Fernandes, and Ricardo J. Alves de Sousa. 2019. "Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050" Metals 9, no. 1: 102. https://doi.org/10.3390/met9010102

APA Style

Pereira, A. B., Cabrinha, A., Rocha, F., Marques, P., Fernandes, F. A. O., & Alves de Sousa, R. J. (2019). Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050. Metals, 9(1), 102. https://doi.org/10.3390/met9010102

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Dissimilar Metals Laser Welding between DP1000 Steel and Aluminum Alloy 1050

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