Influence of nanofluids application on contact length during hard turning

Khajehzadeh, Mohsen; Moradpour, Javad; Razfar, Mohammad Reza

doi:10.1080/10426914.2018.1532091

Cited by 21 publications

(5 citation statements)

References 10 publications

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“…This can be attributed to the influence of nanoparticle concentration on the thermal characteristics of nanofluids. The thermal conductivity ( k ) and convection coefficient ( h ) of nanofluids increases with higher nanoparticle concentrations 33 , 34 . Hence, additional heat can be effectively transferred away from the cutting zone, thereby reducing adhesive wear.…”

Section: Resultsmentioning

confidence: 99%

Experimental study on the effect of CNT-enriched nanofluid lubrication on the performance of textured cutting tool in the turning of aluminum 7075 alloy

Khani

2023

Sci Rep

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This paper investigates the impact of surface texturing and the use of CNT-enriched nanofluid lubrication on the cutting performance of cemented carbide cutting tools during the turning process of aluminum 7075 alloy. Aluminum 7075 is widely utilized in various industries due to its exceptional properties, including high corrosion resistance, a favorable strength-to-weight ratio, and good formability. However, this alloy tends to excessively adhere to the cutting tool at the tool-chip interface, which negatively affects the machining process. Previous research has proposed different solutions, but the current study focuses on implementing the two most effective approaches to minimize adhesion phenomena. The first approach involves modifying the contact area by creating a pattern on the tool's rake face, while the second approach utilizes CNT-enriched nanofluid lubrication to reduce friction in the tool-chip interface. Various types of surface textures were fabricated on the rake face, and experimental tests were conducted to identify the most effective texture. The findings showed that using textured tools with micro-grooves perpendicular to the chip flow direction, with CNT-enriched nanofluid lubrication, resulted in significant reductions in main cutting force, built-up edge, and surface finish. The decreases were up to 32%, 37%, and 19%, respectively, compared to dry turning conditions.

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Section: Resultsmentioning

confidence: 99%

Experimental study on the effect of CNT-enriched nanofluid lubrication on the performance of textured cutting tool in the turning of aluminum 7075 alloy

Khani

2023

Sci Rep

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“…In addition, nanofluids have excellent penetration capabilities that minimize the formation of jaggies. Khajehzadeh et al [240] used TiO 2 nanofluid in hard turning AISI 4140 to improve heat transfer capability and tribological properties, and obtained the best cutting parameters through simulation and experimental verification. When the concentration of nanofluid was 3.0 wt.%, the tool and cutting contact area length reduced by 35%.…”

Section: Hardened Steelmentioning

confidence: 99%

Nanofluids Minimal Quantity Lubrication Machining: From Mechanisms to Application

Chu,

Li,

Zhou

et al. 2023

Lubricants

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Minimizing the negative effects of the manufacturing process on the environment, employees, and costs while maintaining machining accuracy has long been a pursuit of the manufacturing industry. Currently, the nanofluid minimum quantity lubrication (NMQL) used in cutting and grinding has been studied as a useful technique for enhancing machinability and empowering sustainability. Previous reviews have concluded the beneficial effects of NMQL on the machining process and the factors affecting them, including nanofluid volume fraction and nanoparticle species. Nevertheless, the summary of the machining mechanism and performance evaluation of NMQL in processing different materials is deficient, which limits preparation of process specifications and popularity in factories. To fill this gap, this paper concentrates on the comprehensive assessment of processability based on tribological, thermal, and machined surface quality aspects for nanofluids. The present work attempts to reveal the mechanism of nanofluids in processing different materials from the viewpoint of nanofluids’ physicochemical properties and atomization performance. Firstly, the present study contrasts the distinctions in structure and functional mechanisms between different types of base fluids and nanoparticle molecules, providing a comprehensive and quantitative comparative assessment for the preparation of nanofluids. Secondly, this paper reviews the factors and theoretical models that affect the stability and various thermophysical properties of nanofluids, revealing that nanoparticles endow nanofluids with unique lubrication and heat transfer mechanisms. Finally, the mapping relationship between the parameters of nanofluids and material cutting performance has been analyzed, providing theoretical guidance and technical support for the industrial application and scientific research of nanofluids.

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“…Alongside dry machining, the emergence of modern lubrication techniques (such as high-pressure cooling, MQL, cryogenic cooling, etc.) 5–7 and the development of new cutting fluids (such as nanofluids) 8 have a significant effect on the reduction of force and temperature in cutting zones and, as a result, on the weakening of tool wear mechanisms. 9,10…”

Section: Introductionmentioning

confidence: 99%

“…3,4 Alongside dry machining, the emergence of modern lubrication techniques (such as high-pressure cooling, MQL, cryogenic cooling, etc.) [5][6][7] and the development of new cutting fluids (such as nanofluids) 8 have a significant effect on the reduction of force and temperature in cutting zones and, as a result, on the weakening of tool wear mechanisms. 9,10 Other techniques for reducing cutting forces and temperatures and thus tool wear in machining processes include the development of hybrid machining processes such as ultrasonic assisted machining (UAM); in this method, high-frequency mechanical vibrations with very small amplitudes are applied to the cutting tool tip and makes the cutting tool to have discontinuous contact with the workpiece.…”

Section: Introductionmentioning

confidence: 99%

The influence of ultrasonic elliptical vibration amplitude on cutting tool flank wear

Khajehzadeh

Boostanipour

Amiri

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this article, the effect of vibration amplitude during ultrasonic elliptical vibration–assisted turning on cutting tool flank wear ( VBmax) and tool diffusion wear mechanism has been experimentally studied in machining of AISI 4140 hardened steel. To achieve this goal, an ultrasonic elliptical vibration–assisted turning setup was designed and manufactured. This device was then used in both ultrasonic-assisted tuning and ultrasonic elliptical vibration–assisted turning tests (i.e. one-dimensional and two-dimensional ultrasonic-assisted machining). According to the achieved results, ultrasonic elliptical vibration–assisted turning is more effective than ultrasonic-assisted tuning in reducing tool flank wear; at an amplitude of 13 μm, work velocity of 180 mm/s and feed of 0.09 mm/rev, VBmax were decreased 30.3% and 54.3%, respectively, in case of ultrasonic-assisted tuning and ultrasonic elliptical vibration–assisted turning. It was also observed that increasing the amplitude of ultrasonic vibrations reduces VBmax; at work velocity of 180 mm/s and feed of 0.09 mm/rev, the reduction of VBmax in ultrasonic elliptical vibration–assisted turning with amplitudes of 5 and 13 μm is, respectively, 39.3% and 54.3%, compared with that of conventional machining. The results also show that the application of ultrasonic vibrations weakens the cutting tool diffusion wear mechanism. This attenuation is much higher for ultrasonic elliptical vibration–assisted turning in comparison to ultrasonic-assisted tuning. Besides, the amount of attenuation in cutting tool diffusion wear mechanism decreases with increasing vibration amplitude.

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Influence of nanofluids application on contact length during hard turning

Cited by 21 publications

References 10 publications

Experimental study on the effect of CNT-enriched nanofluid lubrication on the performance of textured cutting tool in the turning of aluminum 7075 alloy

Experimental study on the effect of CNT-enriched nanofluid lubrication on the performance of textured cutting tool in the turning of aluminum 7075 alloy

Nanofluids Minimal Quantity Lubrication Machining: From Mechanisms to Application

The influence of ultrasonic elliptical vibration amplitude on cutting tool flank wear

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