Utilisation of Vegetable Oil, Solid Lubricant, Mist Lubrication, Minimum Quantity Lubrication (MQL) in Machining

Hsien, Willey Liew Yun

doi:10.1007/978-981-287-266-1_3

Cited by 4 publications

(1 citation statement)

References 69 publications

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“…Thus, a plenty of investigations have been conducted, focusing on replacement of mineralbased coolant for lubrication with ecological and sustainable coolant with higher efficiency and smaller cost. Methods proposed in these former investigations include cryogenic method, compressed air and MQL [17,18]. E.Kilickap et al [19] investigated how the cutting variables affect surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Investigation on cutting performance in ultrasonic assisted helical milling of Ti6Al4V alloy by various parameters and cooling strategies

Zou

Guo

et al. 2023

Int J Adv Manuf Technol

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Ti6Al4V alloy is the typical difficult-to-machine materials and often result in rapid tool wear, leading to poor machining quality in aircraft assembling. Compared to conventional helical milling, the ultrasonic assistant helical milling (UAHM) process has indicated its superior performance, however it is still a great challenge to improve the hole surface quality and accuracy. In addition, few studies has been conducted on the effect of different variables and cooling strategies on the hole-making performance in longitudinal-torsional ultrasonic assisted helical milling (LT-UAHM). This work mainly aims to investigate the surface finish and accuracy of the holes machined in LT-UAHM of Ti6Al4V alloy. The design approach of Taguchi experiment was employed to study how major variables such as the cutting speed, tangential feed, axial feed and the workpiece hardness influence the dimensional and geometrical tolerances and surface roughness. This paper also discussed the effect of three cooling strategies, i.e. dry condition, air coolant and minimum quantity lubrication (MQL) in LT-UAHM. Theoretical analysis demonstrated that the MQL coolant can be nebulized into hyper-fine droplets owing to the resonant cavitation phenomenon. Combined with the penetrating action caused by the separate-cutting principles of LT-UAHM, the cooling and lubrication performance of MQL was further enhanced. As a result, MQL<-UAHM had the most positive effect on circularity, cylindricity, nominal diameter and surface roughness, contributing to 34%, 32%, 39% and 40%, respectively. The second important machining factor was the cutting speed, contributing to 31%, 29%, 36% and 22%, respectively. The tangential feed and workpiece hardness have the negative effect on geometrical accuracy, respectively.

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Section: Introductionmentioning

confidence: 99%

Investigation on cutting performance in ultrasonic assisted helical milling of Ti6Al4V alloy by various parameters and cooling strategies

Zou

Guo

et al. 2023

Int J Adv Manuf Technol

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Chemical and rheological assessment of produced biolubricants from different vegetable oils

Attia

El-Mekkawi

El-Ardy

et al. 2020

Fuel

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Effect of CuO Nanoparticles on Rheological Behavior of ISO VG46, Jatropha Oil, and Their Blend

Katpatal

Andhare

Padole

2019

Journal of Testing and Evaluation

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This article presents experimental results on the mixing of CuO nanoparticles in ISO VG 46 oil, Jatropha oil, and a blend of the two oils. Initially, blend oil was prepared by mixing ISO VG46 and Jatropha oil in a fixed proportion. This blending caused a reduction in the viscosity of the oil mix as compared to the ISO VG46 oil. Therefore, to bring the viscosity of the blend oil to the level of the ISO VG46 oil, various concentrations of CuO nanoparticles were added to the blend to prepare stable nano-blend oils. The stability of the blend oil, ISO VG46, and Jatropha oil-based nano-lubricants was checked by measuring viscosity at regular intervals of time, and it is observed that stability decreases with the increase of CuO loading in base fluid. Viscosity values of nano-blend oils for various concentrations of CuO ranging from 0 to 3 wt. % were measured. These values were compared to the viscosity values of ISO VG46 and Jatropha oil-based nano-lubricants with the same CuO concentrations. About 19, 17, and 20 % enhancement in viscosity was observed in the blend oil, ISO VG46 oil, and Jatropha oil-based nano-lubricants, respectively, for 3 wt. % concentrations of CuO at 30°C. The nano-blend oil showed inferior performance up to 2 wt. % concentration of CuO in the entire temperature range (30 to 60°C). The viscosity of the nano-blend oil dispersing with 3 wt. % concentration matched well with the viscosity of ISO VG46 mineral oil. Furthermore, the experimental viscosity data of all the types of nano-lubricants are compared to the different viscosity models, and it is observed that the viscosity of the nano-lubricants closely matched with a viscosity model available in the literature. It is observed from viscosity sensitivity analysis that viscosity is more sensitive to greater concentration. The studies on the effects of nanoparticles’ concentration on density and friction coefficients revealed that the addition of nanoparticles in base oils had a small impact on pumping power.

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Utilisation of Vegetable Oil, Solid Lubricant, Mist Lubrication, Minimum Quantity Lubrication (MQL) in Machining

Cited by 4 publications

References 69 publications

Investigation on cutting performance in ultrasonic assisted helical milling of Ti6Al4V alloy by various parameters and cooling strategies

Investigation on cutting performance in ultrasonic assisted helical milling of Ti6Al4V alloy by various parameters and cooling strategies

Chemical and rheological assessment of produced biolubricants from different vegetable oils

Effect of CuO Nanoparticles on Rheological Behavior of ISO VG46, Jatropha Oil, and Their Blend

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