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Appl. Sci. 2019, 9(2), 319; https://doi.org/10.3390/app9020319

Joining of Carbon Fiber Reinforced Plastic to Aluminum Alloy by Reactive Multilayer Films and Low Power Semiconductor Laser Heating

1
Institute of Laser Engineering, Beijing University of Technology, 100 Pingle Yuan, Chaoyang District, Beijing 100124, China
2
Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, 1512 Middle Drive, Knoxville, TN 37996, USA
3
School of Mechanical Engineering, Jiangnan University, 1800 Lihu Avenue, Wuxi 214000, Jiangsu, China
4
College of Materials Science and Engineering, Beijing University of Technology, 100 Pingle Yuan, Chaoyang District, Beijing 100124, China
*
Author to whom correspondence should be addressed.
Received: 13 November 2018 / Revised: 3 January 2019 / Accepted: 8 January 2019 / Published: 17 January 2019
(This article belongs to the Special Issue Selected Papers from the NMJ2018)
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PDF [7591 KB, uploaded 17 January 2019]
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Abstract

This study investigated the characteristics and strength of the dissimilar joints between carbon fiber reinforced plastic (CFRP) epoxy composites and aluminum alloys using two different heating methods, Ni/Al reactive multilayer films (RMF) and a low power continuous wave diode laser. To enhance the adhesion, the top resin layer of the CFRP and the surface of the aluminum alloy were patterned by femtosecond laser. Polycarbonate (PC) was used as a filler material during the joining processes. ANSYS simulation was applied to elucidate the thermal kinetics of the self-propagation reaction and the thermal profile, and evaluate the possibility of joining CFRP to aluminum using Ni/Al RMFs. The SEM image of the cross-section shows that melted PC flowed into the CFRP–aluminum alloy interface, suggesting strong mechanical bonding. A tensile strength of 9.5 MPa was reached using Ni/Al multilayers as heat sources, which provides a new way for joining CFRPs and aluminum alloys in space or under water. View Full-Text
Keywords: laser joining; CFRP to aluminum alloy; reactive multilayer films laser joining; CFRP to aluminum alloy; reactive multilayer films
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Ma, Y.; Bridges, D.; Yu, Y.; Han, J.; Li, H.; Hu, A. Joining of Carbon Fiber Reinforced Plastic to Aluminum Alloy by Reactive Multilayer Films and Low Power Semiconductor Laser Heating. Appl. Sci. 2019, 9, 319.

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