Experimental investigation on the performance of nanoboric acid suspensions in SAE-40 and coconut oil during turning of AISI 1040 steel

Krishna, P. Radha; Srikant, R. R.; Rao, D. Nageswara

doi:10.1016/j.ijmachtools.2010.06.001

Cited by 212 publications

(75 citation statements)

References 21 publications

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“…The results revealed that the cooling and lubrication characteristics of nanofluids, improve the lubrication and wetting characteristics at the rake and flank regions, and accordingly provide better heat dissipation as has been discussed in a previous study [25]. Thus, better average surface roughness values were noticed compared to the cutting tests done without any nano-additives, and these findings confirm the effectiveness of nano-fluids usage in improving the cutting processes performance, as discussed in some previous studies [22,26,27]. Additionally, it should be stated that the lowest feed rate offers the optimal level in terms of the induced surface roughness, while no significant effect has been noticed for the cutting speed.…”

Section: Resultssupporting

confidence: 85%

Towards Sustainable Machining of Inconel 718 Using Nano-Fluid Minimum Quantity Lubrication

Hegab

Kishawy

2018

JMMP

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Difficult-to-cut materials have been widely employed in many engineering applications, including automotive and aeronautical designs because of their effective properties. However, other characteristics; for example, high hardness and low thermal conductivity has negatively affected the induced surface quality and tool life, and consequently the overall machinability of such materials. Inconel 718, is widely used in many industries including aerospace; however, the high temperature generated during machining is negatively affecting its machinability. Flood cooling is a commonly used remedy to improve machinability problems; however, government regulation has called for further alternatives to reduce the environmental and health impacts of flood cooling. This work aimed to investigate the influence of dispersed multi-wall carbon nanotubes (MWCNTs) and aluminum oxide (Al 2 O 3 ) gamma nanoparticles, on enhancing the minimum quantity lubrication (MQL) technique cooling and lubrication capabilities during turning of Inconel 718. Machining tests were conducted, the generated surfaces were examined, and the energy consumption data were recorded. The study was conducted under different design variables including cutting speed, percentage of added nano-additives (wt.%), and feed velocity. The study revealed that the nano-fluids usage, generally improved the machining performance when cutting Inconel 718. In addition, it was shown that the nanotubes additives provided better improvements than Al 2 O 3 nanoparticles.

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Section: Resultssupporting

confidence: 85%

Towards Sustainable Machining of Inconel 718 Using Nano-Fluid Minimum Quantity Lubrication

Hegab

Kishawy

2018

JMMP

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“…Some research work has been done on application of vegetable oil-based and ester oil-based nanofluids in machining. Krishna et al 11 prepared nanoboric acid particle suspensions in SAE-40 oil and coconut oil and investigated their application in turning of AISI 1040 steel with carbide tool. It was reported that cutting temperature, tool flank wear, and surface roughness were decreased significantly with nanolubricants compared to base oil.…”

Section: Introductionmentioning

confidence: 99%

Dispersion stability and thermophysical properties of environmentally friendly graphite oil–based nanofluids used in machining

Gong

Chen

2016

Advances in Mechanical Engineering

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As environmentally friendly cutting fluids, vegetable-based oil and ester oil are being more and more widely used in metal cutting industry. However, their cooling and lubricating properties are required to be further improved in order to meet more cooling and lubricating challenges in high-efficiency machining. Nanofluids with enhanced heat carrying and lubricating capabilities seem to give a promising solution. In this article, graphite oil-based nanofluids with LB2000 vegetablebased oil and PriEco6000 unsaturated polyol ester as base fluids were prepared by ultrasonically assisted two-step method, and their dispersion stability and thermophysical properties such as viscosity and thermal conductivity were experimentally and theoretically investigated at different ultrasonication times. The results indicate that graphitePriEco6000 nanofluid showed better dispersion stability, higher viscosity, and thermal conductivity than graphite-LB2000 nanofluid, which made it more suitable for application in high-efficiency machining as coolant and lubricant. The theoretical classical models showed good agreement with the thermal conductivity values of graphite oil-based nanofluids measured experimentally. However, the deviation between the experimental values of viscosity and the theoretical models was relatively big. New empirical correlations were proposed for predicting the viscosity of graphite oil-based nanofluids at various ultrasonication times.

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“…Krishna et al [51], carried out machining under different lubrication conditions to assay the suitability of the coconut oil based nano-lubricants. The combined effect of solid lubricant and coconut oil leads to reduction in flank wear with 0.5% nano-boric acid particle suspensions compared to remaining conditions, the particles of solid lubricant flow at the interface with the oil and decrease the plastic contacts, leading to reduction of flank wear ( Figure 13).…”

Section: Tool Wearmentioning

confidence: 99%

Tribological Properties and Machining Performance of Vegetable Oil Based Metal Working Fluids—A Review

Jeevan¹,

Jayaram²

2018

MME

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Lubricants are playing an important role in world industrial and economic development, mainly by reducing friction and wear in mechanical contacts. The outlook for eco-friendly MWFs for the next decade is 15% of global volume share. Due to ever increasing demand for environmentally acceptable products suitable for use as MWFs, vegetable oil-based MWFs are drawing the attention of researchers across the globe. Owing to the desirable properties of vegetable oils as cutting fluids, vegetable oil-based cutting fluids play an important role in conserving the environment by means of sustainability. This paper focuses on various vegetable oil being developed to promote biodegradable MWFs across the world. The performance of vegetable oils with respect to cutting and thrust force, tool wear, temperature, surface roughness in turning, drilling, milling and grinding a wide variety of materials are studied and reported. The review also throws light on the tribological behavior of vegetable oils that influence the lubricity in Metal working process. The review reveals that vegetable oils offer an alternative, eco-friendly and sustainable MFWs for the future of manufacturing.

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Experimental investigation on the performance of nanoboric acid suspensions in SAE-40 and coconut oil during turning of AISI 1040 steel

Cited by 212 publications

References 21 publications

Towards Sustainable Machining of Inconel 718 Using Nano-Fluid Minimum Quantity Lubrication

Towards Sustainable Machining of Inconel 718 Using Nano-Fluid Minimum Quantity Lubrication

Dispersion stability and thermophysical properties of environmentally friendly graphite oil–based nanofluids used in machining

Tribological Properties and Machining Performance of Vegetable Oil Based Metal Working Fluids—A Review

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