Multi-objective optimization of thermoplastic CF/PEKK drilling through a hybrid method integrating NSGA-II and TOPSIS: an approach towards sustainable manufacturing

Ge, Jia; Zhang, Wenchang; Luo, Ming Ronnier; Catalanotti, G.; Falzon, Brian; Higgins, Colm; Zhang, Dinghua; Jin, Yan; Sun, Dan

doi:10.26434/chemrxiv-2022-3xrg0

Cited by 3 publications

(3 citation statements)

References 46 publications

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“…With a tungsten carbide drill, a cutting speed of 700 rpm and feed rate of 400 mm/min give the highest hole quality and lowest energy consumption. To achieve optimal outcome considering both delamination damage and production efficiency, our group [73] carried out the first multi-objective optimization study on FRTP drilling (see Fig. 13 (c)), where a hybrid optimization algorithm integrating Nondominated Sorting Genetic Algorithm-II (NSGA-II) and Techniques for Order of Preference by Similarity to Ideal Solution (TOPSIS) was proposed.…”

Section: Current Strategies For Drilling Damage Suppressionmentioning

confidence: 99%

Process characteristics, damage mechanisms and challenges in machining of fibre reinforced thermoplastic polymer (FRTP) composites: A review

Luo

Catalanotti

et al. 2023

Preprint

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Fibre reinforced thermoplastic polymer (FRTP) composites have been used for a wide range of engineering applications (e.g. in transport, construction, energy, etc) due to their excellent mechanical properties and ease of repair and recycling. In recent years, FRTP is increasingly deployed as an alternative to conventional thermoset carbon fibre reinforced epoxy (CF/epoxy) composites, for the purpose of reducing the carbon footprint and contributing to a sustainable manufacturing agenda. Machining of FRTP remains an indispensable process to achieve rapid parts assembly whilst meeting stringent geometric tolerances. However, due to the heterogeneous structure and high thermal sensitivity of FRTP, a range of machining-induced damages (such as matrix smearing, thermal degradation, delamination, burr and surface cavity) often occur, leading to concerns on machined parts quality and reliability. To date, composite machining studies have been mostly focused on conventional thermoset CF/epoxy and there is a lack of an up-to-date, in-depth review of the latest advancement concerning the machining of FRTP. This paper provides a state-of-the-art overview on the recent developments in FRTP machining over the past decade, with a particular emphasis on machining characteristics, damage mechanisms as well as the challenges facing such manufacturing process. The purpose is to present the composite manufacturing community with a timely update, which may guide and inspire further research and development for future FRTP manufacturing.

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Section: Current Strategies For Drilling Damage Suppressionmentioning

confidence: 99%

Process characteristics, damage mechanisms and challenges in machining of fibre reinforced thermoplastic polymer (FRTP) composites: A review

Luo

Catalanotti

et al. 2023

Preprint

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“…Manufacturing industry is one of the most significant industries that contribute towards the global socio-economic growth. As the world seeks to reduce carbon emissions to meet the urgent environmental targets, there has been an unprecedented demand for the deployment of high performance/lightweight materials such as carbon fibre reinforced polymer (CFRP) in various manufacturing sectors, including energy [1], automobile [2] and aerospace [3].…”

Section: Introductionmentioning

confidence: 99%

“…Although many CFRTP parts can be moulded into net shapes [9], machining still remains an indispensable process in meeting the stringent dimensional accuracy and achieving reliable joining of dissimilar materials (e.g. CFRTP with Ti or Al alloys ) [3].…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent cutting physics in orthogonal cutting of carbon fibre reinforced thermoplastic (CFRTP) composite

Ge,

Tan,

Ahmad

et al. 2023

Preprint

Self Cite

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The global commitment towards reducing carbon emissions drives the implementation of sustainable carbon-fibre-reinforced-thermoplastic composites (CFRTPs). However, the machining of CFRTPs presents challenges due to the material’s ductile-brittle composition and sensitivity to machining-induced high temperatures. For the first time, we conducted temperature-controlled orthogonal cutting of CFRTP (using CF/PEKK as a demonstrator) to unveil its temperature-dependent cutting physics. Three representative cutting temperatures, 23 ℃ (ambient temperature),100 ℃ (< PEKK’s glass transition temperature (Tg)) and 200 ℃ (> Tg) and four typical fibre cutting orientations (0°, 45°, 90°, and 135°) have been investigated. The evolution of chip microstructural morphology and surface/subsurface damage have been analysed by advanced microscopy to reveal temperature-dependent material removal mechanisms. The experimental results were elucidated through a novel microscale finite-element-analysis (FEA) model considering thermal softening of the matrix and interface. Results show the transition of the cutting physics with increasing temperature is associated to the degradation of the thermoplastic matrix stiffness/ultimate strength and interface bonding strength and fracture toughness, especially when > Tg.

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Study on mechanical performance of carbon fiber reinforced polyetherketoneketone prepreg and its composites prepared by slurry method

Cheng,

Shen,

Chen

et al. 2024

Polymer Composites

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The increasing demand for high‐performance materials in aerospace, automotive, and industrial applications has driven research into carbon fiber reinforced polyetherketoneketone (CF/PEKK) composites. This study introduces a novel slurry method for preparing CF/PEKK prepregs and investigates the impact of fiber surface treatments—desized and non‐desized carbon fibers—on the mechanical properties of the resulting composites. CF/PEKK prepregs were successfully prepared by dispersing PEKK powder in deionized water to create a slurry, which was used to impregnate carbon fibers. After hot‐pressing, mechanical testing revealed that composites with desized fibers outperformed those with non‐desized fibers in tensile strength (3.29%), flexural strength (22.12%), and interlaminar shear strength (18.29%). Furthermore, desized composites exhibited improved impact toughness (24.29%) and reduced fiber pull‐out during tensile testing. Scanning electron microscopy (SEM) analysis confirmed enhanced fiber‐matrix bonding in desized composites, with fewer voids and better fiber dispersion. These findings underscore the effectiveness of the slurry method and fiber desizing in improving the mechanical performance of CF/PEKK composites, offering potential for advanced applications in high‐performance sectors.Highlights Thermoplastic CF/PEKK prepregs successfully developed using slurry method. Novel slurry method enhances prepreg quality in CF/PEKK composites. Desized carbon fibers improve interfacial bonding and strength. Desized composites exhibit reduced fiber pull‐out during tensile testing.

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Multi-objective optimization of thermoplastic CF/PEKK drilling through a hybrid method integrating NSGA-II and TOPSIS: an approach towards sustainable manufacturing

Cited by 3 publications

References 46 publications

Process characteristics, damage mechanisms and challenges in machining of fibre reinforced thermoplastic polymer (FRTP) composites: A review

Process characteristics, damage mechanisms and challenges in machining of fibre reinforced thermoplastic polymer (FRTP) composites: A review

Temperature-dependent cutting physics in orthogonal cutting of carbon fibre reinforced thermoplastic (CFRTP) composite

Study on mechanical performance of carbon fiber reinforced polyetherketoneketone prepreg and its composites prepared by slurry method

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