Utilization of minimum quantity lubrication (MQL) with water in CBN grinding of steel

Belentani, Rafael de Mello; Júnior, Hamilton Funes; Canarim, Rubens Chinali; Diniz, Anselmo Eduardo; Hassui, Amauri; Aguiar, Paulo Roberto de; Bianchi, Eduardo Carlos

doi:10.1590/s1516-14392013005000165

Cited by 44 publications

(11 citation statements)

References 21 publications

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“…Belentani et al [10] found out that MQL not only improves surface roughness but also helps in disrupting the air barrier formed around the rotating wheel thus lower grinding power obtained. Numerous advantages were found for MQL grinding compared with the conventional technique and dry grinding.…”

Section: Mql Techniques Using Conventional Cutting Fluidmentioning

confidence: 99%

Nanofluid as coolant for grinding process: An overview

Kananathan

Samykano

Sudhakar

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This paper reviews the recent progress and applications of nanoparticles in lubricants as a coolant (cutting fluid) for grinding process. The role of grinding machining in manufacturing and the importance of lubrication fluids during material removal are discussed. In grinding process, coolants are used to improve the surface finish, wheel wear, flush the chips and to reduce the work-piece thermal deformation. The conventional cooling technique, i.e., flood cooling delivers a large amount of fluid and mist which hazardous to the environment and humans. Industries are actively looking for possible ways to reduce the volume of coolants used in metal removing operations due to the economical and ecological impacts. Thus as an alternative, an advanced cooling technique known as Minimum Quantity Lubrication (MQL) has been introduced to the enhance the surface finish, minimize the cost, to reduce the environmental impacts and to reduce the metal cutting fluid consumptions. Nanofluid is a new-fangled class of fluids engineered by dispersing nanometre-size solid particles into base fluids such as water, lubrication oils to further improve the properties of the lubricant or coolant. In addition to advanced cooling technique review, this paper also reviews the application of various nanoparticles and their performance in grinding operations. The performance of nanoparticles related to the cutting forces, surface finish, tool wear, and temperature at the cutting zone are briefly reviewed. The study reveals that the excellent properties of the nanofluid can be beneficial in cooling and lubricating application in the manufacturing process.

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Section: Mql Techniques Using Conventional Cutting Fluidmentioning

confidence: 99%

Nanofluid as coolant for grinding process: An overview

Kananathan

Samykano

Sudhakar

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…9 Grinding power average for each tested condition workpiece. According to Belentani et al [8], the main factors that cause the grinding wheel wear are the thermal degradation and the high mechanical stresses in which the grinding wheel is submitted. The temperature control of the process is vital to keep the hardness of the abrasive grains and the bond strength.…”

Section: Diametrical Grinding Wheel Wearmentioning

confidence: 99%

“…Consequently, the workpiece material did not suffer softening by the heat. As the material hardness did not reduce, the grinding wheel is subject to higher stress and the grinding power increased [8]. In short, as the method presents a better cooling effect, the grinding power increased.…”

Section: Grinding Powermentioning

confidence: 99%

“…The added water evaporates during the process, draining the overage heat [7]. Also, water has specific heat two times higher than pure oil, thereby, water speeds up the absorption rate [8]. The added water plays three important rolls in the process: carry the lubricant, spread the lubricant, and remove the heat [7].…”

Section: Introductionmentioning

confidence: 99%

“…Despite reducing the MQL lubricity, the addition of water improves grinding results. Investigating water influence in MQL during grinding, Belentani et al [8] concluded that MQL with addition of water provides better surface roughness, smaller roundness deviation, and lower diametric wheel wear than MQL with pure oil. Mao et al [9] demonstrated, analyzing cutting forces and temperature, that addition of water in MQL increases cooling effect and decreases the lubricity of the technique.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the effect of the compressed air wheel cleaning in grinding the AISI 4340 steel with CBN and MQL with water

Bianchi

Sato

Sales

et al. 2017

Int J Adv Manuf Technol

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The application of minimum quantity of lubricant (MQL) in grinding process is a challenging task. Once the MQL is considered an environmentally friendly technique, its implementation in grinding process is interesting to achieve cleaner production. On the other hand, its use brings some problems to the process, such as intensification of grinding wheel clogging phenomenon and increase of cutting temperatures, which impairs on the attainment of a good surface quality, together with dimensional and geometrical accuracy. Looking for improving the MQL efficiency in grinding process, two eco-friendly techniques were found: the addition of water in the MQL and the wheel cleaning system with compressed air. The present research seeks to evaluate the improvement of MQL application in grinding using the combination of these techniques. Both techniques MQL + water and wheel cleaning system are innovative, since there are almost no articles in literature citing its use. The experiments were performed in an external cylindrical plunge grinding using a vitrified cubic boron nitrite (CBN) grinding wheel. The workpiece material was a quenched and tempered AISI 4340 steel. The cooling methods employed in the process were a conventional method (flood coolant),

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MQL with water in cylindrical plunge grinding of hardened steels using CBN wheels, with and without wheel cleaning by compressed air

Ruzzi

Belentani

Mello

et al. 2016

Int J Adv Manuf Technol

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Minimum quantity of lubricant (MQL) in grinding is an alternative for reducing abundant fluid flow and both environmental and health hazards when compared with conventional fluid application. In spite of the fact that MQL is considered an innovative cost-effective and environmentally friendly technique, when used in grinding its inadequate application can increase cutting temperature and wheel clogging, worsening surface roughness, and increasing geometric and dimensional errors. The present study aims to evaluate improvements in MQL in grinding using MQL + water (1:1, 1:3, and 1:5 parts of oil per parts of water), when compared to MQL without water and conventional cooling-lubrication technique. Wheel cleaning by compressed air was also tested, aimed for unclogging of the wheel pores. The tests were performed in a plunge cylindrical grinder with CBN wheel and workpieces of AISI 4340 for different feed rates. The ground workpieces were analyzed with respect to the surface roughness, roundness errors, microhardness, and microscopic changes. In addition, tangential cutting force and diametric wheel wear were investigated. The results observed for the MQL plus water in the proportion of 1:5, with wheel cleaning system (at 30° inclination angle of the air nozzle) were the best, when compared to MQL without water, and close to the conventional flood coolant, implying that this technique is a potential alternative for cooling-lubrication when applied properly

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Utilization of minimum quantity lubrication (MQL) with water in CBN grinding of steel

Cited by 44 publications

References 21 publications

Nanofluid as coolant for grinding process: An overview

Nanofluid as coolant for grinding process: An overview

Evaluating the effect of the compressed air wheel cleaning in grinding the AISI 4340 steel with CBN and MQL with water

MQL with water in cylindrical plunge grinding of hardened steels using CBN wheels, with and without wheel cleaning by compressed air

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