Investigations on a material-specific joining technology for CFRP hybrid joints along the automotive process chain

Vorderbrüggen, Julian; Meschut, Gerson

doi:10.1016/j.compstruct.2019.111533

Cited by 25 publications

(8 citation statements)

References 20 publications

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“…The joining process of carbon fiber composite material and metal self-piercing riveting is shown in Figure 5. [28] He et al [29] explored the performance of self-piercing riveting joining between carbon fiber sheet and aluminum alloy sheet, and the failure mode of the joint was analyzed. The test showed that the carbon fiber sheet should be used as the upper layer in the joining process, and the failure mode of the joint was the fiber fracture of the upper layer or inter-layer cracking.…”

Section: Mechanical Joiningmentioning

confidence: 99%

Joining processes of CFRP‐Al sheets in automobile lightweighting technologies: A review

Han

Guang

et al. 2022

Polymer Composites

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According to the development trend of modern car body, the future car body will be composed of steel, aluminum‐magnesium alloy, plastic, carbon fiber reinforced polymer (CFRP), and other lightweight materials. Hybrid material body represents the latest development trend of car body structure in the future. With the development of lightweight technology, the application of carbon fiber composite material in automobile bodies is increasing due to its exceptional performance. Therefore, the joining of carbon fiber sheets with dissimilar sheets process in the hybrid material body is a key technical problem that needs to be solved. In this paper, the existing joining processes of adhesive process, mechanical joining, welding process, and hybrid joining for carbon fiber composites are reviewed; the principle, development, advantages, and shortcomings of each process for carbon fiber composites joining processes are systematically described; and the latest progress of the joining process are introduced. The purpose is tantamount to broaden the application range of carbon fiber sheets with dissimilar sheets and provide reference for its extensive application in the development of hybrid car body and lightweight.

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Section: Mechanical Joiningmentioning

confidence: 99%

Joining processes of CFRP‐Al sheets in automobile lightweighting technologies: A review

Han

Guang

et al. 2022

Polymer Composites

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“…Finally, in the literature, shear-lap hybrid adhesive joints with selfpiercing rivets, traditional rivets and bolts of composite materials with metallic alloys for automotive lightweight applications are investigated in respect to their strength and failure behaviour . [388][389][390][391][392]…”

Section: Hybrid Adhesive Bonding Techniques In Automotive Body-in-whitementioning

confidence: 99%

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Budzik

Wolfahrt

Reis

et al. 2021

The Journal of Adhesion

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The development of new adhesives has allowed to expand the application of bonding into the most diverse industrial fields. This review article presents the commonly used experimental methods for the investigation of mechanical performance of adhesively bonded joints in the aerospace, wind energy, automotive and civil engineering sectors. In these sectors, due to their excellent intrinsic properties, composite materials are often used along with conventional materials such as steel, concrete and aluminium. In this context, and due to the limitations that the traditional joining techniques present, adhesive joints are an excellent alternative. However, standardized experimental procedures are not always applicable for testing representative adhesive joints in these industries. Lack of relevant regulations across the different fields is often overcome by the academia and companies' own regulations and standards. Additional costs are thus mitigated to the industrial sectors in relation with the certification process which effectively can deprive even the biggest companies from promoting adhesive bonding. To ensure continuous growth of the adhesive bonding field the new international standards, focusing on actual adhesive joints' performance rather than on specific application of adhesive joints are necessary.

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“…Presently, the common methods to join the metal and CFRTP includes mechanical joining by riveting, adhesive bonding, and welding (thermal joining) [ 12 ]. The mechanical joining could provide the high bonding strength, but it destroys the original carbon fiber structure and results in the stress concentration, which is detrimental to the fatigue properties of the joint [ 13 ]. Moreover, the additional fasteners, including screws, bolts, and rivets, would increase the weight of the components [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint

Zou²,

Xiao

et al. 2021

Micromachines

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In the present research, the carbon fiber reinforced thermoplastic (CFRTP) was laser joined with the Al alloy whose joining interface was pretreated by laser micro-texturing, anodizing, and hybrid of laser micro-texturing and anodizing. The surface morphology of the pretreated Al joining interface and bonding strength of the corresponding Al/CFRTP butt joint were investigated. The results show that the laser micro-texturing has fabricated the micro-pit or micro-furrow in the Al joining interface. With the increasing of laser scanning times, the size of the micro-pit or micro-furrow decreases, when the laser scanning distance is constant. The bonding strength of the Al/CFRTP butt joint with Al joining interface pretreated by micro-texturing fluctuates with the increasing of laser scanning distance and times, reaching the maximum value of 20 MPa at laser scanning distance of 0.1 mm and 1 time. The anodizing pretreatment has formed the Al2O3 oxide layer on the Al joining interface. The Al/CFRTP butt joint with Al joining interface pretreated by anodizing obtains the maximum bonding strength of 11 MPa at anodizing time of 10 min. The hybrid pretreatment of micro-texturing and subsequent anodizing fabricates the regular grid structure with smooth micro-furrow and micro-pit, while the hybrid pretreatment of anodizing and subsequent micro-texturing fabricates the Al joining interface with explosive micro-pit and micro-furrow. The bonding strength of the Al/CFRTP butt joint with hybrid-pretreated Al joining interface is relative better than that of the Al/CFRTP butt joint with anodizing-pretreated Al joining interface but almost lower than that of the Al/CFRTP butt joint with micro-texturing pretreated Al joining interface. Such results should be attributed to the surface morphology of the Al joining interface.

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Investigations on a material-specific joining technology for CFRP hybrid joints along the automotive process chain

Cited by 25 publications

References 20 publications

Joining processes of CFRP‐Al sheets in automobile lightweighting technologies: A review

Joining processes of CFRP‐Al sheets in automobile lightweighting technologies: A review

Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview

Effect of Interface Pretreatment of Al Alloy on Bonding Strength of the Laser Joined Al/CFRTP Butt Joint

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