Enhanced dry machinability of honeycomb‐reinforced ablative thermal protection composites by longitudinal ultrasonic‐assisted milling DOI

Zhanli Shi,

Zhiyong Yang, Bo Hou

и другие.

Polymer Composites, Год журнала: 2024, Номер unknown

Опубликована: Сен. 22, 2024

Abstract Honeycomb‐reinforced ablation thermal protection (HRATP) composites are widely used in aircraft systems as one of the most effective methods. The conventional milling (CM) method renders it susceptible to various processing damages, which directly affects bonding strength whole component. Aiming at poor surface quality caused by large cutting force process, a longitudinal ultrasonic‐assisted (LUAM) was proposed, realized periodic separation multi‐edge micro‐tooth cutter and workpiece, effectively reduced improved quality. A motion trajectory model for developed, an experimental study LUAM conducted. effects different tools ultrasonic characterization parameters on force, temperature, were compared analyzed. results comparison between four indicate that exhibits highest machining Compared with CM, applying vibration reduces inlet burr length 33.3%, chip mainly removed small particle manner. Highlights established HRATP composites. Sensitivity analysis temperature. temperature 12.4% 33.3%. significantly enhanced CM.

Язык: Английский

Carbon Fiber Reinforced Thermoplastics: From Materials to Manufacturing and Applications DOI Creative Commons
Howard Wang, Siqi Huo, Venkata S. Chevali

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 22, 2025

Abstract Carbon fiber reinforced thermoplastics (CFRTs) have witnessed a resurgence in recent times since their first industrial use over five decades ago, with revitalized interest from aerospace companies and other key sectors including energy automotive sectors. CFRTs are increasingly gaining footholds high volume rapid manufacturing nonaerospace owing to inherent recyclability. However, there has been lack of contemporary critical review on this topic so far. This work aims the advances emphasis performance thermoplastics. Both continuous discontinuous forms tape, organosheet short/long architectures discussed, processing postprocessing methods reviewed, state‐of‐the‐art welding techniques. Typical applications industry examined, fuselage, pressure vessel, components. Finally, insights provided into ongoing challenges, future development, roadmap for expediting development high‐performance CFRTs.

Язык: Английский

Процитировано

3

Performance improvement of carbon fiber‐reinforced ABS composites by introducing fullerene nanoparticles DOI Creative Commons

Alinda Öykü Akar,

Ümit Hakan Yıldız, Seha Tirkeş

и другие.

Polymer International, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Abstract Recently, polymer composites have been extensively researched in industrial fields such as electrical conductance, ohmic heating, electromagnetic shielding and electrostatic discharge, particularly engineering polymers reinforced with carbonaceous additions. Herein, fullerene (C60) short carbon fiber ( CF ) were incorporated acrylonitrile–butadiene–styrene copolymer (ABS) using melt‐compounding followed by an injection‐molding process. Composite samples produced contents of 20 wt% besides 0.1, 0.5 1.0 C60. Tensile, impact, hardness wear tests, conductive atomic force microscopy, dynamic mechanical analysis, thermogravimetric melt flow index tests scanning electron microscopy (SEM) performed to characterize mechanical, electrical, thermomechanical, thermal, melt‐flow structural behaviors ABS‐based involving Based on the test findings obtained for developed composites, comprising tensile impact results, C60 additions contributed a significant rise strength resistance ‐reinforced ABS 20% increase being achieved introduction into ABS/ structure. addition enhanced efficiency 50% terms modulus. Electrical conductivity measurements confirmed that nanoparticles exhibited synergy. The optimum synergistic ratio C60/ was 0.5/20. path composite system established incorporating different loading amounts. SEM micrographs demonstrated dispersed homogeneously matrix lower amounts © 2025 Author(s). Polymer International published John Wiley & Sons Ltd behalf Society Chemical Industry.

Язык: Английский

Процитировано

1

A comparative study on drilling characteristics of unidirectional thermosetting CF/epoxy and thermoplastic CF/PEEK composites DOI
Zhijian Meng, Shunuan Liu, Shiming Liang

и другие.

Composite Structures, Год журнала: 2024, Номер unknown, С. 118764 - 118764

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

5

Influence of rivet structure on the bonding mechanism and mechanical properties of carbon fiber reinforced polyphenylene sulfide‐AA7075 friction stir blind riveted joint DOI
Zijian Zhang, Hao Li, Yunpeng Liu

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Янв. 3, 2025

Abstract This paper reports an experimental investigation into joining mechanism and mechanical properties of carbon fiber reinforced polyphenylene sulfide (CF/PPS)‐AA7075 friction stir blind riveting (FSBR) joints made different structure rivets. Four types rivets were obtained by second machining the commercial rivet, corresponding FSBR test conducted. Penetration forces temperatures during penetration process collected. The joint quality, tensile shear strength, failure mode four compared. results demonstrated that quality behavior highly related with rivet tip structure. Compared original rectangular or triangular slots at can increase cutting proportion process, which will reduce material damage, force, flash gap between two workpieces. premature mandrel breakage caused be effectively avoided introducing tip. Rivet grooves was most effective, force 14.9%, strength 10.9% increasing fatigue life up to five times rivet. Highlights technology is firstly applied aluminum alloy CFRTP. Rectangular are machined tips Forming evaluated. Probability reduced. Joint has increased times.

Язык: Английский

Процитировано

0

Evaluation of slot milling processes on carbon fiber reinforced polyetheretherketone thermoplastic composite utilizing nanofluid-enhanced minimum quantity lubrication technique DOI
Mutlu Özcan,

Kemal Vahapoğlu,

Görkem ÖZTÜRK

и другие.

Journal of Thermoplastic Composite Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Sanctions aimed at reducing carbon emissions promote the adoption of sustainable materials, such as fiber-reinforced polyetheretherketone (CF/PEEK) thermoplastic composites, in aerospace sector due to their distinctive characteristics. The application secondary machining used production functional components from CF/PEEK composite material dry and wet cutting conditions causes performance efficiency loss on process. Therefore, this study, minimum quantity lubrication (MQL) MQL using multi-walled nanotube-reinforced nanofluid (N-MQL) techniques were utilized for first time milling CF/PEEK, was evaluated terms force, feed temperature, surface roughness, topography, burr height, dimensional error. In comparison cutting, N-MQL method achieved maximum improvements 77.5%, 71.8%, 67.5%, 49.4%, 74.1%, 90.4% these outputs, respectively. Then, optimum parameters considering all responses selected TOPSIS, VIKOR, CoCoSo, MOORA multi-criteria decision-making (MCDM) methods. MCDM results showed that obtain machining, condition should be well low/average speed low values.

Язык: Английский

Процитировано

0

Investigation on Hole Quality and Tool Wear of CFRP Drilling With Cryogenic‐Minimal Quantity Lubrication DOI
Tao Wang, Shunuan Liu, Zhijian Meng

и другие.

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

ABSTRACT Carbon fiber reinforced polymer (CFRP) is extensively utilized in various fields, including aerospace and automotive industries, where drilling serves as a common method for mechanical assembly. However, the inherent anisotropy inhomogeneity of CFRP, combined with its sensitivity to temperature, often result significant damage during drilling; finally, it leads component scrap. This study aims explore hole quality tool wear CFRP utilizing cryogenic‐minimal quantity lubrication (CMQL), investigating influence on cooling friction reduction by comparing dry (Dry), liquid nitrogen (Cryo), minimal (MQL). The results show that CMQL significantly relieves terms entrance damage, exit burrs, delamination, wall damage. Although does not perform excellently hole's roundness error, can effectively maintain accuracy diameters under different parameters. Notably, there high‐viscosity chip sludge formed combination lubricating oil chips cutting zone. It intensifies squeezing scraping interactions at tool‐workpiece interface, resulting severe frictional wear. MQL has more pronounced impact rounding edges than Cryo condition. Observations secondary flank face corroborate protective role oil, which mitigates burn. In summary, application only enhances surface integrity but also holds promise extending lifespan tools.

Язык: Английский

Процитировано

0

Enhanced dry machinability of honeycomb‐reinforced ablative thermal protection composites by longitudinal ultrasonic‐assisted milling DOI

Zhanli Shi,

Zhiyong Yang, Bo Hou

и другие.

Polymer Composites, Год журнала: 2024, Номер unknown

Опубликована: Сен. 22, 2024

Abstract Honeycomb‐reinforced ablation thermal protection (HRATP) composites are widely used in aircraft systems as one of the most effective methods. The conventional milling (CM) method renders it susceptible to various processing damages, which directly affects bonding strength whole component. Aiming at poor surface quality caused by large cutting force process, a longitudinal ultrasonic‐assisted (LUAM) was proposed, realized periodic separation multi‐edge micro‐tooth cutter and workpiece, effectively reduced improved quality. A motion trajectory model for developed, an experimental study LUAM conducted. effects different tools ultrasonic characterization parameters on force, temperature, were compared analyzed. results comparison between four indicate that exhibits highest machining Compared with CM, applying vibration reduces inlet burr length 33.3%, chip mainly removed small particle manner. Highlights established HRATP composites. Sensitivity analysis temperature. temperature 12.4% 33.3%. significantly enhanced CM.

Язык: Английский

Процитировано

1