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Investigation of the Joining Technology of FRP/AZ31B Magnesium Alloy by Welding and Riveting Hybrid Bonding Method

School of material science and engineering, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian 116024, China
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Materials 2019, 12(13), 2167; https://doi.org/10.3390/ma12132167
Received: 12 June 2019 / Revised: 1 July 2019 / Accepted: 1 July 2019 / Published: 5 July 2019
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Abstract

A novel joining technology was applied to join Fiber Reinforced Polymer (FRP) and AZ31B Mg alloy, which combined the laser-arc welding source and riveting joining methods. The design idea of the stepped rivet was proposed. The weld morphology, mechanical properties, microstructures of welds under two different rivet structures were investigated. FRP and AZ31B Mg could be joined successfully by the new hybrid joining method when it used two different structural rivets. The maximum tensile shear load of the joint under stepped rivet of small size was only 800 N, while that of the joint under stepped rivet of the larger size could reach 1419 N, nearly 90% of that of FRP. There was no reaction between the FRP plate and AZ31B rivet. While the magnesium elements and aluminum elements diffused and reacted with other elements in the FRP plate/AZ31B plate interface. View Full-Text
Keywords: AZ31B Mg alloy; fiber reinforced polymer; dissimilar materials; welding and riveting hybrid joining technology; laser-arc hybrid welding source AZ31B Mg alloy; fiber reinforced polymer; dissimilar materials; welding and riveting hybrid joining technology; laser-arc hybrid welding source
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Wang, H.; Li, N.; Liu, L. Investigation of the Joining Technology of FRP/AZ31B Magnesium Alloy by Welding and Riveting Hybrid Bonding Method. Materials 2019, 12, 2167.

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