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

Ye, Yiyun; Zou, Qi; Xiao, Yinan; Jiao, Junke; Du, Beining; Liu, Yuezhan; Sheng, Liyuan

doi:10.3390/mi12020179

Cited by 30 publications

(7 citation statements)

References 41 publications

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“…The surface pretreatment of aluminum was performed using a hybrid method of laser micro‐texturing and anodizing technique 63 followed by Al/CFRTP butt‐joint laser welding experiments. As the laser scan distance and welding time increased, the strength of the joint first declined and then increased.…”

Section: Enhancement For Laser‐welded Joints Between Cfrpt and Metalmentioning

confidence: 99%

Laser joining of CFRTP to metal: A review on welding parameters, joint enhancement, and numerical simulation

Hu,

2023

Polymer Composites

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As a lightweight material with high performance, carbon fiber‐reinforced thermoplastic plastic (CFRTP) is being implemented increasingly in aerospace, automotive, new energy, and so forth. The connection between CFRTP and metals, which are still used in these areas, is an inevitable problem. Among the various connection techniques, laser welding of CFRTP to metal is attractive due to high efficiency, excellent strength, and no contact. This paper presents the most recent research on laser welding CFRTP and metals in three aspects: (a) the principle of laser welding CFRTP to metals and the influence of process parameters on joint quality including laser power, defocus distances, scanning speed, clamping pressure, and beam shape, (b) the joint enhancement mechanisms and methods, and (c) numerical simulations of temperature and stress fields of laser‐connected CFRTP to metals. The findings show that joint strength is significantly influenced by process parameters and that the maximum joint strength can be achieved by choosing the right parameters. Apart from the conventional techniques of texturing the metal surface, applying a suitable layer of resin, and applying chemical treatment, other novel joint improvement measures have also been used, including the use of blue laser and CFRTP embedded in the metal. The temperature field and residual stresses can be successfully simulated by finite elements, which can be useful when studying new processes and choosing parameters for metal laser welding and CFRTP.Highlights We review the progress from parameters, simulations, and enhancements. The main parameters have essential effects on the dimensions and strength of joints. FEM (Finite Element Method) is applied to simulate the temperature and stress of the laser welding. Joints can be reinforced by surface pre‐texturing, adding resin, and grafting.

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Section: Enhancement For Laser‐welded Joints Between Cfrpt and Metalmentioning

confidence: 99%

Laser joining of CFRTP to metal: A review on welding parameters, joint enhancement, and numerical simulation

Hu,

2023

Polymer Composites

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“…Yiyun Ye et al 43 performed laser welding to join AA7075 and CF-polyamide (CF-PA) in butt joint configuration. Authors examined different surface pretreatment effects such as laser micro-texture, Anodization, and hybrid treatment (laser micro-texture + anodization) on the joint shear strength.…”

Section: Laser-assisted Metal-polymer Weldingmentioning

confidence: 99%

Advances in joining technologies for the innovation of 21^st century lightweight aluminium-CFRP hybrid structures

Sandeep

Natarajan

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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In the twenty-first century, the application of carbon fiber reinforced polymer (CFRP) materials in the vehicle industry are growing rapidly due to lightweight, high specific strength, and elasticity. In the automobile and aerospace industries, CFRP needs to be joined with metals to build complete structures. The demand for hybrid structures has prompted research into the combination of CFRP and metals in manufacturing. Aluminium and CFRP structures combine the mechanical properties of aluminium with the superior physical and chemical properties of CFRP. However, joining dissimilar materials is often challenging to achieve. Various joining technologies are developed to produce hybrid joints of CFRP, and aluminium alloys include conventional adhesives, mechanical and thermal joining technologies. In this review article, an extensive review was carried out on the thermal joining technologies include laser welding, friction-based welding technologies, ultrasonic welding, and induction welding processes. The article primarily focused on the current knowledge and process development of these technologies in fabricating dissimilar aluminium and CFRP structures. Besides, according to Industry 4.0 requirements, additive manufacturing-based techniques to fabricate hybrid structures are presented. Finally, this article also addressed the various improvements for the future development of these joining technologies. Ultrasonic welding yields the maximum shear strength among the various hybrid joining technologies due to lower heat input. On the other hand, laser welding produces higher heat input, which deteriorates the mechanical performance of the hybrid joints. Surface pretreatments on material surfaces prior to joining showed a significant effect on joint shear strength. Surface modification using anodizing is considered an optimal method to improve wettability, increasing mechanical interlocking phenomena.

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“…The laser metal surface plastic coating method and high-speed rotary laser welding technology were applied to improve the quality of the CFRTP-TC4 joint. Another paper [48] describes the bonding of a CFRTP composite to an aluminum alloy. The interface connecting these materials was pretreated by laser microtexturing, anodizing, and a hybrid of laser microtexturing and anodizing.…”

Section: Modification Of Carbon Fibers Surface In Order To Increase M...mentioning

confidence: 99%

The Use of CFRP for Structural Reinforcement—Literature Review

Pawlak

Górny

Dopierala

et al. 2022

Metals

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Carbon fiber reinforced polymer (CFRP) composites are increasingly being used to strengthen structures and to retrofit existing structures. CFRP composites are used in various industries: construction, automotive, and many others. This literature review has shown that CFRP composites find numerous practical applications. Improving structures by reinforcing them with CFRP composite is an innovative approach in design. This review aims to explore the current state of the art in the types of structures that can be reinforced with CFRP, and modifications to the CFRP composite as an additional aspect to increase the strength of the reinforced structure. It has been shown that regardless of the type of reinforced material, the most critical element in this connection is the bonded joint. Proper surface preparation and the use of an appropriate adhesive are also important.

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

Cited by 30 publications

References 41 publications

Laser joining of CFRTP to metal: A review on welding parameters, joint enhancement, and numerical simulation

Laser joining of CFRTP to metal: A review on welding parameters, joint enhancement, and numerical simulation

Advances in joining technologies for the innovation of 21^st century lightweight aluminium-CFRP hybrid structures

The Use of CFRP for Structural Reinforcement—Literature Review

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

Cited by 30 publications

References 41 publications

Laser joining of CFRTP to metal: A review on welding parameters, joint enhancement, and numerical simulation

Laser joining of CFRTP to metal: A review on welding parameters, joint enhancement, and numerical simulation

Advances in joining technologies for the innovation of 21st century lightweight aluminium-CFRP hybrid structures

The Use of CFRP for Structural Reinforcement—Literature Review

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Product

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Advances in joining technologies for the innovation of 21^st century lightweight aluminium-CFRP hybrid structures