Formation mechanism of direct laser welding joint between CFRTP and Ti-6Al-4V

Zou, Pengyuan; Zhang, Hua; Lei, Min; Cheng, Donghai

doi:10.1016/j.matlet.2022.132707

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…According to our previous study, 30 the appropriate laser parameters used in the experiment were shown in Table 3. To measure the joint strength, the shearing force of joint was measured by stretching machine with the tensile rate of 0.5 mm/min.…”

Section: Methodsmentioning

confidence: 99%

Effect of micro‐arc oxidation treatment on laser joint microstructures of Ti‐6Al‐4V alloy/CFRP

Zou

Yang

Liu

et al. 2022

Surface & Interface Analysis

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Resin-based carbon fibre reinforced composite (CFRP) with excellent properties has been widely applied in aerospace industry. In this study, polyether ether ketone enforced composite (PEEK-CFRP) and Ti-6V-4V titanium alloy had been joined by laser welding process. Micro-arc oxidation (MAO) process was conducted on the surface of titanium alloy to improve the joint property. Fractures and mechanical properties of joints were analysed. Interfacial microstructures of the joints had been investigated, and the formation mechanism of joint had been figured out. The results showed that after MAO treatment, the joint strength had been greatly improved and the shear strength reached to 42.3 MPa compared with pretreated sample. The wettability of CFRP on titanium alloy was rising with the contact angle of 68.8 . Fracture showed that cohesive failure contributed to the main fracture mode. As joints were formed by both mechanical bonding and chemical bonding, 'anchor-shaped' structures were found in the joint to enhance the mechanical bonding effects due to the flowing of the melted resin. (ÀOH) bonds were identified at the surface of MAOtreated titanium alloy that provided conditions for hydrogen bond interaction. TiO 2 , TiO and Ti-V-C phase were found at interface, whereas Ti-F and Ti-O-F bonds were generated during the welding process, which made great contribution to the chemical bonds between titanium alloy and CFRP.

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Section: Methodsmentioning

confidence: 99%

Effect of micro‐arc oxidation treatment on laser joint microstructures of Ti‐6Al‐4V alloy/CFRP

Zou

Yang

Liu

et al. 2022

Surface & Interface Analysis

Self Cite

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“…The researchers carried out their studies utilizing experiments and simulations, firstly, to study the relationship between welding process parameters, temperature field distribution, and joint strength and to determine the ideal welding parameters. The second is to investigate the mechanism of welding enhancement and enhancement measures between CFRTP and metals and find the causes and solutions for defects including unfusion, bubbles, and fractures 22 that may arise during the welding. This paper presents an in‐depth and systematic review of CFRTP‐to‐metal laser welding research from three perspectives: the welding process, numerical modeling, enhancement mechanisms and measures, as well as an outlook and analysis of the research directions in this field, which will give comprehensive information to the related researchers and is expected to promote them to have more innovative results in this field to broaden the application of this technology.…”

Section: Introductionmentioning

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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Effect of laser power on microstructure and mechanical properties of Nd: YAG laser welding of titanium tubes

Palanivel

2023

J. Cent. South Univ.

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Formation mechanism of direct laser welding joint between CFRTP and Ti-6Al-4V

Cited by 5 publications

References 9 publications

Effect of micro‐arc oxidation treatment on laser joint microstructures of Ti‐6Al‐4V alloy/CFRP

Effect of micro‐arc oxidation treatment on laser joint microstructures of Ti‐6Al‐4V alloy/CFRP

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

Effect of laser power on microstructure and mechanical properties of Nd: YAG laser welding of titanium tubes

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