Sustainable materials and technologies, Год журнала: 2025, Номер unknown, С. e01268 - e01268
Опубликована: Янв. 1, 2025
Язык: Английский
International Journal of Extreme Manufacturing, Год журнала: 2023, Номер 6(2), С. 022007 - 022007
Опубликована: Дек. 19, 2023
Abstract The aerospace community widely uses difficult-to-cut materials, such as titanium alloys, high-temperature metal/ceramic/polymer matrix composites, hard and brittle geometrically complex components, thin-walled structures, microchannels, surfaces. Mechanical machining is the main material removal process for vast majority of components. However, many problems exist, including severe rapid tool wear, low efficiency, poor surface integrity. Nontraditional energy-assisted mechanical a hybrid that nontraditional energies (vibration, laser, electricity, etc) to improve machinability local materials decrease burden machining. This provides feasible promising method rate quality, reduce forces, prolong life. systematic reviews this technology are lacking with respect current research status development direction. paper recent progress in components community. In addition, focuses on processing principles, responses under energy, resultant forces temperatures, mechanisms, applications these processes, vibration-, laser-, electric-, magnetic-, chemical-, advanced coolant-, Finally, comprehensive summary advantages, limitations each provided, future perspectives forward design, device development, sustainability processes discussed.
Язык: Английский
Процитировано
135
Chinese Journal of Mechanical Engineering, Год журнала: 2023, Номер 36(1)
Опубликована: Июнь 30, 2023
Abstract Cutting fluid is crucial in ensuring surface quality and machining accuracy during machining. However, traditional mineral oil-based cutting fluids no longer meet modern machining’s health environmental protection requirements. As a renewable, pollution-free alternative with excellent processing characteristics, vegetable oil has become an inevitable replacement. lacks oxidation stability, extreme pressure, antiwear properties, which are essential for The physicochemical characteristics of oils the improved methods’ application mechanism not fully understood. This study aims to investigate effects viscosity, tension, molecular structure on cooling lubricating properties. mechanisms autoxidation high-temperature based also discussed. further investigates performance chemical modification antioxidant additives. shows that propionic ester methyl hydroxy-oleate obtained by epoxidation initial temperature 175 ℃. pressure conventional additives nanoparticle were investigated solve problem insufficient resistance nanobiological lubricants. Finally, discusses future prospects addition. provides theoretical guidance technical support industrial scientific research field lubrication cooling. It expected promote sustainable development manufacturing industry.
Язык: Английский
Процитировано
90
Journal of Molecular Liquids, Год журнала: 2023, Номер 382, С. 121853 - 121853
Опубликована: Апрель 18, 2023
The heat dissipation problem that arises when machining difficult to cut materials can be mitigated by using nano-cutting fluids, which have a much higher thermal conductivity value than the basic lubricants. Since carrying capacity of Minimum Quantity Lubrication (MQL) system is significantly lower other coolants, number nano-additives are used increase its cooling effectiveness. Therefore, this study firstly focuses on assessment fluids and their significant efficacy in operation nickel-based alloys. Multi-walled carbon nanotube (MWCNT) suspended vegetable oil compared with distinct environmental conditions namely, dry, MQL cryogenic dioxide (CO2). novelty work different volume fractions 0.2 – 1 wt% MWCNT were dispersed contact angle, viscosity prepared molecular liquid then, potential evaluate outcomes surface roughness (Ra), cutting temperature (CT) tool wear (Vb) while Monel 400 alloy. affirmed employing nano operations resulted mean reduction about 65% evolved concerning no coolant condition. Additionally, use nanoparticles leads an improved finish abridged wear.
Язык: Английский
Процитировано
57
Advances in Colloid and Interface Science, Год журнала: 2024, Номер 325, С. 103112 - 103112
Опубликована: Фев. 16, 2024
Thermal management is a critical challenge in advanced systems such as electric vehicles (EVs), electronic components, and photoelectric modules. alleviation carried out through the cooling which coolant heat exchangers are key components. The study examines recent literature on nanofluids exchanger tubes along with state-of-the-art concepts being tested for transfer intensification. performance of several common tubes' geometries/configurations effectiveness novel augmentation mechanisms presented. Promising results have been reported, showing improved parameters use intensification like turbulators, fins, grooves, variations temperature flow velocity. These enhance dispersion stability, achieve more uniform distribution, reduce boundary layer thickness, resulting lower tube wall temperatures. Moreover, introducing pulsations magnetic effects further enhances particle mobility exchange. However, there limitations, increased frictional losses pressure drop due to effects. combination nanofluids, geometries, turbulators holds great promise highly efficient future. also presents bibliometric analysis that offers valuable insights into impact visibility research integration systems. aid identifying emerging trends advancing field towards compact systems, paving way future advancements.
Язык: Английский
Процитировано
39
Intelligent and sustainable manufacturing, Год журнала: 2024, Номер 1(1), С. 10006 - 10006
Опубликована: Янв. 1, 2024
Nickel-based alloys has important application value in modern industrial field, but there are a lot of problems that difficult to solve traditional processing, and it is typical difficult-to-process material. In order improve the machinability nickel-based alloys, scholars try use variety non-traditional processing methods explore study alloys. these studies, ultrasonic vibration assisted technology minimum quantity lubrication (MQL) can achieve remarkable results. The intermittent separation cutting characteristics quality by changing tool path, while effect cutting, combining MQL leverages benefits both methods, resulting improved expanded Summarize current research status on machining mechanism micro lubrication, anticipate its developmental trends. This provides reference for future efficient mechanisms practical applications
Язык: Английский
Процитировано
26
Composite Structures, Год журнала: 2024, Номер 346, С. 118433 - 118433
Опубликована: Июль 31, 2024
Язык: Английский
Процитировано
22
Chemical Engineering and Processing - Process Intensification, Год журнала: 2024, Номер 202, С. 109849 - 109849
Опубликована: Июнь 7, 2024
Язык: Английский
Процитировано
21
Frontiers in Materials, Год журнала: 2024, Номер 11
Опубликована: Март 7, 2024
Introduction: Among alloys of medium-carbon and high-strength steel, EN 24 steel is characterised by its nickel-chromium-molybdenum composition. highly suitable for application in heavy-duty projects due to notable resilience damage, especially when exposed low temperatures. With the objective minimising surface irregularities, this research endeavours enhance milling process employing coated tungsten carbide (WC) tool inserts. Methods: Feed rate, cutting speed, depth cut, fluid are all crucial factors experimental investigation. Four distinct levels applied each factor. The utilises Design Experiments (DOE)-based Central Composite Response Surface Methodology. To predict output parameters, mathematical models developed utilising analysis variance (ANOVA) optimisation purposes. Results discussions: Through utilisation multi-objective optimisation, optimal combination inserts was determined, which provided irregularities 0.301 µm. Cutting speed (CS) 149.507 m/min, feed rate (FR) 340.27 mm/min, cut (DOC) 0.599 mm, (CF) 12.50 L/min parameters. morphologies machined workpiece at particular parameter values can be discerned through scanning electron microscope (SEM) analysis, yielding significant insights. parameters that have been identified provide practical recommendations improving method utilised. Understanding entirety facilitated SEM microstructures under conditions. morphology evaluated using profilometry, provides additional insight into integrity. discourse investigates potential applications implications results, as well suggests directions further study concerning enhancement processes similar alloys.
Язык: Английский
Процитировано
20
Chinese Journal of Mechanical Engineering, Год журнала: 2024, Номер 37(1)
Опубликована: Март 14, 2024
Abstract Minimum quantity Lubrication (MQL) is a sustainable lubrication system that famous in many machining systems. It involve the spray of an infinitesimal amount mist-like lubricants during processes. The MQL affirmed to exhibit excellent performance, and it highly economical. nanofluids are understood lubricity heat evacuation capability, compared pure oil-based system. Studies have shown surface quality energy expended grinding operations can be reduced considerably due positive effect these nanofluids. This work presents experimental study on tribological performance SiO 2 nanofluid Si 3 N 4 ceramic. different modes systems operation was also analyzed. Different concentrations manufactured using canola, corn sunflower oils. quantitative evaluation process done based forces, specific energy, frictional coefficient, integrity. found canola oil exhibits optimal oil, traditional Additionally, introduction ultrasonic vibrations with reduce normal tangential roughness by 65%, 57%, 18% respectively. Finally, regression analysis used obtain optimum parameter combinations. observations from this will aid smooth transition towards ecofriendly engineering ceramics.
Язык: Английский
Процитировано
18
ACS Omega, Год журнала: 2025, Номер 10(6), С. 5251 - 5282
Опубликована: Фев. 3, 2025
Nanofluids, an advanced class of heat transfer fluids, have gained significant attention due to their superior thermophysical properties, making them highly effective for various engineering applications. This review explores the impact nanoparticle integration on thermal conductivity, viscosity, and overall performance base highlighting improvements in systems, such as exchangers, electronics cooling, PV/T CSP technologies, geothermal recovery. Key mechanisms nanolayer formation, Brownian motion, aggregation are discussed, with a focus hybrid nanofluids that show enhanced conductivity. The increase viscosity poses trade-off, necessitating careful control properties optimize while reducing energy consumption. Empirical data up 123% convective coefficients, demonstrating tangible benefits efficiency system miniaturization. also considers environmental impacts nanofluid use, potential toxicity challenges sustainable production disposal. Future research directions include developing specific integrating phase change materials, exploring new nanomaterials metal chalcogenides enhance sustainability management systems.
Язык: Английский
Процитировано
4