Influence of processing parameters on joint shear performance in laser direct joining of CFRTP and aluminum alloy

Wang, Qi; Jia, Zhenyuan; Zhang, Bo-yu; Gao, Dun-lin; Ma, Yu; Liu, Jing-Yuan

doi:10.1016/j.matdes.2021.109996

Cited by 28 publications

(18 citation statements)

References 27 publications

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“…Therefore, CFRTP has been increasingly used in aerospace, transportation, semiconductor and biomedical fields for secondary‐force‐bearing and non‐force‐bearing components. [ 5– 7 ] Examples include, tail elevators and rudders, floor panels of Gulfstream Aerospace G650, [ 8 ] engine cowlings for the Airbus A380, [ 9 ] composite hip prostheses, [ 10 ] and implant components for orthopedic and trauma applications. [ 11 ] Although CFRP is mostly processed by the near‐net shapes methods such as filament winding, autoclave molding or compression molding, secondary machining operation is often necessary to meet stringent assembly requirements in terms of dimensional tolerance and surface quality.…”

Section: Introductionmentioning

confidence: 99%

Grinding performance study of CF/epoxy and CF/PEEK composites

et al. 2023

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In order to distinguish the grinding performance of the thermoset and thermoplastic carbon fiber‐reinforced plastic (CFRP) composites, carbon fiber‐reinforced epoxy resin (CF/epoxy) and carbon fiber‐reinforced poly‐ether‐ether‐ketone (CF/PEEK) composites were employed in this study. Different process parameters were set to grind the two materials. Then the surface morphologies and roughness of the workpieces with different process parameters were observed and measured. Experimental results indicated that the grinding forces were positively correlated with the grinding depth and feed speed, and negatively correlated with the wheel speed. The grinding depth was the main influencing factor of the maximum temperature of the grinding. The heat distribution of the grinding process was dependent on the fiber direction. In addition, the chip formation mechanism of CF/epoxy and CF/PEEK were investigated. Compared with CF/epoxy, the grinding forces and temperature were higher and the wheel was more prone to be clogged under the same grinding parameters, indicating that it was more difficult to process CF/PEEK. However, the surface quality of CF/PEEK with high ductility was much better than CF/epoxy.

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Section: Introductionmentioning

confidence: 99%

Grinding performance study of CF/epoxy and CF/PEEK composites

et al. 2023

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“…The introduction of TiO 2 nanotube arrays on the surface of the titanium sheet improves the shear strength at the interface 12 . Wang et al improved the connection strength of Al sheet and thermoplastic carbon fiber composite joints by controlling the melting depth and local peak temperature of the laser connection 13 . Hu et al prepared carbon fiber‐reinforced polyimide FMLs by hot pressing process, and titanium plate formed rough structure on its surface after anode oxidation.…”

Section: Introductionmentioning

confidence: 99%

Rolling preparation process and interface toughening mechanism of Al/CFRTP/Al composite laminates

Wang,

Wang

et al. 2023

Polymer Composites

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In this study, a highly efficient method for preparing Al/CFRTP/Al composite laminates by roller preparation was proposed. Three different surface treatments, namely, anodic oxidation, laser texture and surface modification, were used to improve the strength of the metal‐fiber interface. Results show that composite laminates can be prepared efficiently by using reasonable roll pressing technology. The composite laminates with a thickness of 3 mm has good shear strength when the reduction amount is 0.02 mm. Laser texturing increases the contact area at the laminate interface. The surface roughness of Al alloy sheet is improved after laser texture. Moreover, the matrix in the fiber layer of the laminate can be embedded in the gullies formed by the laser texture to form a mechanical interlocking structure. The shear strength of the laminates was further increased when the laser scanning spacing was 2 mm. The highest shear strength of the laminate is 52.4 MPa after using a coupling agent to modify the surface of the Al alloy sheet. X‐ray photoelectron spectroscopy analysis showed that a new chemical bond was generated at the interface between CFRTP and the Al alloy sheet modified with silane coupling agent, thereby forming a molecular bridge among different materials. Mechanical interlocking structure and the generation of new chemical bonds cause the interface to need to absorb more energy during the failure process, which is conducive to the improvement of the interface strength.Highlights Propose roller pressing to prepare Al/CFRTP/Al composite laminates. Effect of laser texture of the laminates interface is clarified. Mechanism of coupling agents at the interface has been elucidated. Efficient preparation of thermoplastic fiber metal laminates has been achieved.

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“…Traditional joining technologies for metals and CFRTP include mechanical joining, adhesive joining, direct welding, or combining these methods [ 9 , 10 , 11 ]. These joining technologies have benefits, drawbacks, and their own application occasions [ 10 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Study on the SPCC and CFRTP Hybrid Joint Performance Produced with Additional Nylon-6 Interlayer by Ultrasonic Plastic Welding

2022

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Due to the high degree of dissimilarity in physicochemical properties between metal and carbon fiber, it presents a tremendous challenge to join them directly. In this paper, cold rolled steel (SPCC) and carbon fiber reinforced thermoplastic (CFRTP) chopped sheet hybrid joints were produced with the addition of Nylon 6 (PA6) thermoplastic film as an intermediate layer by the ultrasonic plastic welding method. The effect of ultrasonic welding energy and preheating temperature on the hybrid joint microstructure and mechanical behavior was well investigated. The suitable joining parameters could obtain a strong joint by adding the PA6 film as an intermediate layer between the SPCC and bare carbon fibers. Microstructural analysis revealed that the interface joining condition between the PA6 film and the SPCC component is the primary reason for the joint strength. The crevices generated at the interface were eliminated when the preheating temperature arrived at 200 °C, and the joint strength thus significantly increased. The lap shear test results under quasi-static loading showed that the welding energy and preheating temperature synergistically affect the joint performances. At 240 °C, the joint strength value reached the maximum. Through the analysis of the microstructure morphology, mechanical performance, and the failure mechanism of the joint, the optimized joining process window for ultrasonic plastic welding of SPCC-CFRTP by adding an intermediate layer, was obtained.

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Influence of processing parameters on joint shear performance in laser direct joining of CFRTP and aluminum alloy

Cited by 28 publications

References 27 publications

Grinding performance study of CF/epoxy and CF/PEEK composites

Grinding performance study of CF/epoxy and CF/PEEK composites

Rolling preparation process and interface toughening mechanism of Al/CFRTP/Al composite laminates

Study on the SPCC and CFRTP Hybrid Joint Performance Produced with Additional Nylon-6 Interlayer by Ultrasonic Plastic Welding

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