Laser surface treatment for enhanced titanium to carbon fiber-reinforced polymer adhesion

Palavra, A.; Coelho, Vitor Nazário; Hosson, J.T.M. de; Lima, Milton Sérgio Fernandes de; Carvalho, Sheila Medeiros de; Costa, Adilson Rodrigues da

doi:10.1007/s40430-017-0826-5

Cited by 13 publications

(3 citation statements)

References 16 publications

(18 reference statements)

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“…Ali E. [12] analyzed the influence of laser process parameters on the structure of the deposited layer and determined the best process parameters of laser processing by orthogonal experiments. Armin P. et al [13] studied the influence of laser process parameters on the quality of deposited layer geometry. Jaritngam, P. et al [14,15] studied surface characteristics and machining performance of titanium alloy equipment, thus laying a foundation for quality control in the laser processing of titanium alloy materials.…”

Section: Introductionmentioning

confidence: 99%

PSO-BP-Based Morphology Prediction Method for DED Remanufactured Deposited Layers

et al. 2023

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Directed energy deposition is a typical laser remanufacturing technology, which can effectively repair failed parts and extend their service life, and has been widely used in aerospace, metallurgy, energy and other high-end equipment key parts remanufacturing. However, the repair quality and performance of the repaired parts have been limited by the morphological and quality control problems of the process because of the formation mechanism and process of the deposition. The main reason is that the coupling of multiple process parameters makes the deposited layer morphology and surface properties difficult to be accurately predicted, which makes it difficult to regulate the process. Thus, the deposited layer forming mechanism and morphological properties of directed energy deposition were systematically analyzed, the height and width of multilayer deposition layers were taken as prediction targets, and a PSO-BP-based model for predicting the morphology of directed energy deposited layers was settled. The weights and thresholds of Back Propagation (BP) neural networks were optimized using a Particle Swarm Optimization (PSO) algorithm, the predicted values of deposited layer morphology for different process parameters were obtained, and the problem of low accuracy of deposited layer morphology prediction due to slow convergence and poor uniformity of the solution set of traditional optimization models was addressed. Remanufacturing experiments were conducted, and the experimental results showed that the deposited layer morphology prediction model proposed in this paper has a high prediction accuracy, with an average prediction error of 1.329% for the layer height and 0.442% for the layer width. The research of the paper provided an effective way to control the morphology and properties of the directed energy deposition process. A valuable contribution is made to the field of laser remanufacturing technology, and significant implications are held for various industries such as aerospace, metallurgy, and energy.

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Section: Introductionmentioning

confidence: 99%

PSO-BP-Based Morphology Prediction Method for DED Remanufactured Deposited Layers

et al. 2023

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“…It was revealed that the shear strength was determined based on chemical bonding rather than mechanical interlocking [21]. Palavra et al studied the effect of laser surface pretreatment parameters on the adhesion strength between a titanium layer and CFCs, including the laser power and pulse energy [22]. In summary, most researchers in this field have primarily focused on the impact of laser treatment on enhancing the adhesion strength between metal layers and CFCs.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Laser Process Parameters on the Adhesion Strength between Electroless Copper and Carbon Fiber Composites Determined Using Response Surface Methodology

Wang,

Liu,

Liu

et al. 2023

Micromachines

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Laser process technology provides a feasible method for directly manufacturing surface-metallized carbon fiber composites (CFCs); however, the laser’s process parameters strongly influence on the adhesion strength between electroless copper and CFCs. Here, a nanosecond ultraviolet laser was used to fabricate electroless copper on the surface of CFCs. In order to achieve good adhesion strength, four key process parameters, namely, the laser power, scanning line interval, scanning speed, and pulse frequency, were optimized experimentally using response surface methodology, and a central composite design was utilized to design the experiments. An analysis of variance was conducted to evaluate the adequacy and significance of the developed regression model. Also, the effect of the process parameters on the adhesion strength was determined. The numerical analysis indicated that the optimized laser power, scanning line interval, scanning speed, and pulse frequency were 5.5 W, 48.2 μm, 834.0 mm/s, and 69.5 kHz, respectively. A validation test confirmed that the predicted results were consistent with the actual values; thus, the developed mathematical model can adequately predict responses within the limits of the laser process parameters being used.

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“…The authors observed that surface energy of CFRP surfaces depends on the increased laser energy and they also observed laser polishing effect in the multiple laser scanning at the same CFRP samples. They reported that wettability of the titanium alloy surfaces did not change significantly with laser energy .…”

Section: Introductionmentioning

confidence: 99%

The Effect of CO₂ Laser‐Induced Microhole Formations on Adhesive Bonding Strength of CFRP/CFRP Joints

et al. 2018

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There are many different techniques to improve the adhesion between carbon fiber‐reinforced plastics (CFRP) which are used in aircraft primary structures. One of the most common techniques is the specific surface structuring of the joining parts in order to obtain mechanical interlocking. In this study, laser‐induced surface structuring effect on adhesion strength of CFRP/CFRP joints was investigated by single lap shear tests. Microholes were created by CO2 laser with different configurations in x and y axis for the best mechanical interlocking effect on adhesive bonding. The effects of microhole numbers (309, 625, and 914) and microhole formations (triangle, inverted triangle, frame, and box) on the adhesive bonding strength of the CFRP/CFRP joints were determined by using single lap shear tests according to ASTM D5868‐01 standard with 60 kN DARTEC universal test machine. Single lap shear tests showed that microhole structuring has a significant effect on mechanical interlocking for adhesive bonding of CFRP/CFRP joints. Results showed that the shear strength of CFRP/CFRP joints improved at 309 microholes and frame type microhole formations. After mechanical tests, damage mechanisms were observed by using the optical microscope. POLYM. COMPOS., 40:2891–2900, 2019. © 2018 Society of Plastics Engineers

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Laser surface treatment for enhanced titanium to carbon fiber-reinforced polymer adhesion

Cited by 13 publications

References 16 publications

PSO-BP-Based Morphology Prediction Method for DED Remanufactured Deposited Layers

PSO-BP-Based Morphology Prediction Method for DED Remanufactured Deposited Layers

The Influence of Laser Process Parameters on the Adhesion Strength between Electroless Copper and Carbon Fiber Composites Determined Using Response Surface Methodology

The Effect of CO₂ Laser‐Induced Microhole Formations on Adhesive Bonding Strength of CFRP/CFRP Joints

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Laser surface treatment for enhanced titanium to carbon fiber-reinforced polymer adhesion

Cited by 13 publications

References 16 publications

PSO-BP-Based Morphology Prediction Method for DED Remanufactured Deposited Layers

PSO-BP-Based Morphology Prediction Method for DED Remanufactured Deposited Layers

The Influence of Laser Process Parameters on the Adhesion Strength between Electroless Copper and Carbon Fiber Composites Determined Using Response Surface Methodology

The Effect of CO2 Laser‐Induced Microhole Formations on Adhesive Bonding Strength of CFRP/CFRP Joints

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The Effect of CO₂ Laser‐Induced Microhole Formations on Adhesive Bonding Strength of CFRP/CFRP Joints