Experimental evaluation of an eco-friendly grinding process combining minimum quantity lubrication and graphene-enhanced plant-oil-based cutting fluid

Li, Ming; Yu, Tianbiao; Zhang, Rongchuang; Yang, Lin; Ma, Zhelun; Li, Baichun; Wang, Xuezhi; Wang, Wanshan; Zhao, Ji

doi:10.1016/j.jclepro.2019.118747

Cited by 59 publications

(28 citation statements)

References 56 publications

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“…Except for grinding, NEBL milling force of TC4 [135] and Inconel 690 [136] presented the similar results. The employment of concentration 0.1 wt% graphene NEBL obtained the larger CoF reduction of 26.3% and the larger force reduction of 42.7% compared to BMQL [135].…”

Section: Tribological Aspectsupporting

confidence: 53%

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Zhang

et al. 2022

Friction

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152

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To eliminate the negative effect of traditional metal-working fluids and achieve sustainable manufacturing, the usage of nano-enhanced biolubricant (NEBL) is widely researched in minimum quantify lubrication (MQL) machining. It’s improved tool wear and surface integrity have been preliminarily verified by experimental studies. The previous review papers also concluded the major influencing factors of processability including nano-enhancer and lubricant types, NEBL concentration, micro droplet size, and so on. Nevertheless, the complex action of NEBL, from preparation, atomization, infiltration to heat transfer and anti-friction, is indistinct which limits preparation of process specifications and popularity in factories. Especially in the complex machining process, in-depth understanding is difficult and meaningful. To fill this gap, this paper concentrates on the comprehensive quantitative assessment of processability based on tribological, thermal, and machined surface quality aspects for NEBL application in turning, milling, and grinding. Then it attempts to answer mechanisms systematically considering multi-factor influence of molecular structure, physicochemical properties, concentration, and dispersion. Firstly, this paper reveals advanced lubrication and heat transfer mechanisms of NEBL by quantitative comparison with biolubricant-based MQL machining. Secondly, the distinctive filmformation, atomization, and infiltration mechanisms of NEBL, as distinguished from metal-working fluid, are clarified combining with its unique molecular structure and physical properties. Furtherly, the process optimization strategy is concluded based on the synergistic relationship analysis among process variables, physicochemical properties, machining mechanisms, and performance of NEBL. Finally, the future development directions are put forward aiming at current performance limitations of NEBL, which requires improvement on preparation and jet methods respects. This paper will help scientists deeply understand effective mechanism, formulate process specifications, and find future development trend of this technology.

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Section: Tribological Aspectsupporting

confidence: 53%

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Zhang

et al. 2022

Friction

Self Cite

152

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“…Hence, the lubricating action of the cutting fluids at the chip-tool-workpiece interfaces for the reduction of cutting force is evidenced. According to Li et al [29], lubricants with appropriate fluid concentrations are capable of reducing cutting force due to sufficient lubrication action. In the present study, the bio-based nanolubricants with enhanced cooling and lubrication properties have been achieved through designated amounts of CO, SDBS, and CAPB that efficiently penetrate the chip-tool interface, alleviate friction and facilitate material flow on the rake surface of the tool.…”

Section: Cutting Power (P C ) and P Elecmentioning

confidence: 99%

On the effects of bio-based nanolubricants formulation for the turning of Inconel 718

Ali

Azmi

Murad

et al. 2021

J Braz. Soc. Mech. Sci. Eng.

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This study evaluates the effects of new bio-based nanolubricants blend formulation on the machinability improvement during the turning Inconel 718 alloys. Different proportion of coconut oil (CO), sodium dodecylbenzenesulphonate (SDBS), cocoamidopropyl betaine (CAPB) with 0.5% of aluminium oxide (Al 2 O 3 ) nanoparticles were blended according to the mixture-design methodology to form the nanolubricants emulsion. Machining responses of tool wear, surface roughness, cutting power and spindle power were comprehensively assessed. The analyses revealed that a combination of 107.14 g of CO, 22.5 g of SDBS, and 15.36 g of CAPB was an ideal formulation for attaining excellent tribological and machining efficiency in the turning of the aforementioned alloy. Suitability of the formulated bio-based nanolubricants was also confirmed in terms of toxicity, corrosion resistance, and biodegradability.

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“…Furthermore, Alberts et al [ 25 ] incorporated graphite nano-platelet into the cutting fluid and found lower cutting force and improved surface finish. Li et al [ 26 ] indicated that graphene nanoparticle (GPNP) incorporation strengthens the cutting fluid performance, which dramatically enhanced the cooling and lubricating performance during MQL grinding operation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Cooling Strategies on Surface Quality and Power Consumption in Finishing End Milling of Stainless Steel 316

et al. 2021

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In this paper, an experimental investigation into the machinability of AISI 316 alloy during finishing end milling operation under different cooling conditions and with varying process parameters is presented. Three environmental-friendly cooling strategies were utilized, namely, dry, minimal quantity lubrication (MQL) and MQL with nanoparticles (Al2O3), and the variable process parameters were cutting speed and feed rate. Power consumption and surface quality were utilized as the machining responses to characterize the process performance. Surface quality was examined by evaluating the final surface roughness and surface integrity of the machined surface. The results revealed a reduction in power consumption when MQL and MQL + Al2O3 strategies were applied compared to the dry case by averages of 4.7% and 8.6%, respectively. Besides, a considerable reduction in the surface roughness was noticed with average values of 40% and 44% for MQL and MQL + Al2O3 strategies, respectively, when compared to the dry condition. At the same time, the reduction in generated surface roughness obtained by using MQL + Al2O3 condition was marginal (5.9%) compared with using MQL condition. Moreover, the results showed that the improvement obtained in the surface quality when using MQL and MQL + Al2O3 coolants increased at higher cutting speed and feed rate, and thus, higher productivity can be achieved without deteriorating final surface quality, compared to dry conditions. From scanning electron microscope (SEM) analysis, debris, furrows, plastic deformation irregular friction marks, and bores were found in the surface texture when machining under dry conditions. A slight smoother surface with a nano-polishing effect was found in the case of MQL + Al2O3 compared to the MQL and dry cooling strategies. This proves the effectiveness of lubricant with nanoparticles in reducing the friction and thermal damages on the machined surface as the friction marks were still observed when machining with MQL comparable with the case of MQL + Al2O3.

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Experimental evaluation of an eco-friendly grinding process combining minimum quantity lubrication and graphene-enhanced plant-oil-based cutting fluid

Cited by 59 publications

References 56 publications

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

Nano-enhanced biolubricant in sustainable manufacturing: From processability to mechanisms

On the effects of bio-based nanolubricants formulation for the turning of Inconel 718

Effect of Different Cooling Strategies on Surface Quality and Power Consumption in Finishing End Milling of Stainless Steel 316

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