Predictive model of convective heat transfer coefficient in bone micro-grinding using nanofluid aerosol cooling

Yang, Min; Li, Changhe; Luo, Lei; Li, Runze; Long, Yun‐Ze

doi:10.1016/j.icheatmasstransfer.2021.105317

Cited by 224 publications

(29 citation statements)

References 47 publications

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“…Then, under the action of highpressure air flow, the nanofluid is atomized and sprayed into the cutting area through the nozzle [199,200]. NMQL effectively improves the heat transfer capacity and lubrication performance of MQL in the grinding area [201][202][203]. Some studies show that NMQL achieves a cooling effect close to flood lubrication.…”

Section: Minimum Quantity Lubricationmentioning

confidence: 99%

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

et al. 2022

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Fiber-reinforced composites have become the preferred material in the fields of aviation and aerospace because of their high-strength performance in unit weight. The composite components are manufactured by near net-shape and only require finishing operations to achieve final dimensional and assembly tolerances. Milling and grinding arise as the preferred choices because of their precision processing. Nevertheless, given their laminated, anisotropic, and heterogeneous nature, these materials are considered difficult-to-machine. As undesirable results and challenging breakthroughs, the surface damage and integrity of these materials is a research hotspot with important engineering significance. This review summarizes an up-to-date progress of the damage formation mechanisms and suppression strategies in milling and grinding for the fiber-reinforced composites reported in the literature. First, the formation mechanisms of milling damage, including delamination, burr, and tear, are analyzed. Second, the grinding mechanisms, covering material removal mechanism, thermal mechanical behavior, surface integrity, and damage, are discussed. Third, suppression strategies are reviewed systematically from the aspects of advanced cutting tools and technologies, including ultrasonic vibration-assisted machining, cryogenic cooling, minimum quantity lubrication (MQL), and tool optimization design. Ultrasonic vibration shows the greatest advantage of restraining machining force, which can be reduced by approximately 60% compared with conventional machining. Cryogenic cooling is the most effective method to reduce temperature with a maximum reduction of approximately 60%. MQL shows its advantages in terms of reducing friction coefficient, force, temperature, and tool wear. Finally, research gaps and future exploration directions are prospected, giving researchers opportunity to deepen specific aspects and explore new area for achieving high precision surface machining of fiber-reinforced composites.

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Section: Minimum Quantity Lubricationmentioning

confidence: 99%

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

et al. 2022

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“…In recent years, different advanced computational approaches have been applied in various fields of study, such as fluid mechanic engineering [20][21][22][23][24][25][26][27][28], chemical engineering [29][30][31][32][33], electrical engineering , computer engineering [60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76], civil engineering [77][78][79], petroleum engineering [80][81][82][83][84][85][86][87][88][89][90][91][92][93][94], energy engineering [95]…”

Section: Rbf Neural Networkmentioning

confidence: 99%

Applying Data Mining and Artificial Intelligence Techniques for High Precision Measuring of the Two-Phase Flow’s Characteristics Independent of the Pipe’s Scale Layer

et al. 2022

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Scale formation inside oil and gas pipelines is always one of the main threats to the efficiency of equipment and their depreciation. In this study, an artificial intelligence method method is presented to provide the flow regime and volume percentage of a two-phase flow while considering the presence of scale inside the test pipe. In this non-invasive method, a dual-energy source of barium-133 and cesium-137 isotopes is irradiated, and the photons are absorbed by a detector as they pass through the test pipe on the other side of the pipe. The Monte Carlo N Particle Code (MCNP) simulates the structure and frequency features, such as the amplitudes of the first, second, third, and fourth dominant frequencies, which are extracted from the data recorded by the detector. These features use radial basis function neural network (RBFNN) inputs, where two neural networks are also trained to accurately determine the volume percentage and correctly classify all flow patterns, independent of scale thickness in the pipe. The advantage of the proposed system in this study compared to the conventional systems is that it has a better measuring precision as well as a simpler structure (using one detector instead of two).

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“…NMQL is a new method of high-efficiency, low-consumption, clean and low-carbon precision machining aimed at the bottleneck problem of MQL applications [79][80][81] NMQL is a processing method in which a certain proportion of nano scale particles is added to a minimum quantity lubricating fluid to be fully mixed to prepare a nano-fluid, which further atomized by compressed gas, and transported to the processing area through a nozzle [82]. Studies have found that nanoparticles can remarkably improve the thermal conductivity, permeability, and antiwear properties of cutting fluids [83][84][85].…”

Section: Mql and Nmqlmentioning

confidence: 99%

Circulating purification of cutting fluid: an overview

Zhou³

et al. 2021

Int J Adv Manuf Technol

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181

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Cutting fluid has cooling and lubricating properties and is an important part of the field of metal machining. Owing to harmful additives, base oils with poor biodegradability, defects in processing methods, and unreasonable emissions of waste cutting fluids, cutting fluids have serious pollution problems, which pose challenges to global carbon emissions laws and regulations. However, the current research on cutting fluid and its circulating purification technique lacks systematic review papers to provide scientific technical guidance for actual production. In this study, the key scientific issues in the research achievements of ecofriendly cutting fluid and waste fluid treatment are clarified. First, the preparation and mechanism of organic additives are summarized, and the influence of the physical and chemical properties of vegetable base oils on lubricating properties is analyzed. Then, the process characteristics of cutting fluid reduction supply methods are systematically evaluated. Second, the treatment of oil mist and miscellaneous oil, the removal mechanism and approach of microorganisms, and the design principles of integrated recycling equipment are outlined. The conclusion is concluded that the synergistic effect of organic additives, biodegradable vegetable base oils and recycling purification effectively reduces the environmental pollution of cutting fluids. Finally, in view of the limitations of the cutting fluid and its circulating purification technique, the prospects of amino acid additive development, self-adapting jet parameter supply system, matching mechanism between processing conditions and cutting fluid are put forward, which provides the basis and support for the engineering application and development of cutting fluid and its circulating purification.

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Predictive model of convective heat transfer coefficient in bone micro-grinding using nanofluid aerosol cooling

Cited by 224 publications

References 47 publications

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Applying Data Mining and Artificial Intelligence Techniques for High Precision Measuring of the Two-Phase Flow’s Characteristics Independent of the Pipe’s Scale Layer

Circulating purification of cutting fluid: an overview

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