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machinability 2

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damage-tolerant titanium alloy 1

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grinding force 1

grinding temperature 1

hydrophilization effect 1

low-temperature plasma 1

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nanoparticle jet mist cooling (NJMC) 1

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Machinability of damage-tolerant titanium alloy in orthogonal turn-milling

Tao SUN, Lufang QIN, Junming HOU, Yucan FU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 504-515 doi: 10.1007/s11465-020-0586-2

Abstract: In this study, the machinability of TC21 in orthogonal turn-milling is investigated experimentally toThis study provides strong guidance for exploring the machinability of difficult-to-cut-materials in

Keywords： orthogonal turn-milling damage-tolerant titanium alloy tool life and failure machined surface integrity machinability

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A review of low-temperature plasma-assisted machining: from mechanism to application

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0734-y

Abstract: However, the poor machinability of these materials leads to large cutting forces, high cutting temperaturesproperties, including hardness, strength, ductility, and wettability, significantly improving material machinabilityHot plasma improves material machinability via the thermal softening effect induced by the high temperature

Keywords： low-temperature plasma difficult-to-cut material machinability hydrophilization effect Rehbinder

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Machinability of ultrasonic vibration-assisted micro-grinding in biological bone using nanolubricant

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0717-z

Abstract: Bone grinding is an essential and vital procedure in most surgical operations. Currently, the insufficient cooling capacity of dry grinding, poor visibility of drip irrigation surgery area, and large grinding force leading to high grinding temperature are the technical bottlenecks of micro-grinding. A new micro-grinding process called ultrasonic vibration-assisted nanoparticle jet mist cooling (U-NJMC) is innovatively proposed to solve the technical problem. It combines the advantages of ultrasonic vibration (UV) and nanoparticle jet mist cooling (NJMC). Notwithstanding, the combined effect of multi parameter collaborative of U-NJMC on cooling has not been investigated. The grinding force, friction coefficient, specific grinding energy, and grinding temperature under dry, drip irrigation, UV, minimum quantity lubrication (MQL), NJMC, and U-NJMC micro-grinding were compared and analyzed. Results showed that the minimum normal grinding force and tangential grinding force of U-NJMC micro-grinding were 1.39 and 0.32 N, which were 75.1% and 82.9% less than those in dry grinding, respectively. The minimum friction coefficient and specific grinding energy were achieved using U-NJMC. Compared with dry, drip, UV, MQL, and NJMC grinding, the friction coefficient of U-NJMC was decreased by 31.3%, 17.0%, 19.0%, 9.8%, and 12.5%, respectively, and the specific grinding energy was decreased by 83.0%, 72.7%, 77.8%, 52.3%, and 64.7%, respectively. Compared with UV or NJMC alone, the grinding temperature of U-NJMC was decreased by 33.5% and 10.0%, respectively. These results showed that U-NJMC provides a novel approach for clinical surgical micro-grinding of biological bone.

Keywords： micro-grinding biological bone ultrasonic vibration (UV) nanoparticle jet mist cooling (NJMC) grinding force grinding temperature