State of Art on Minimum Quantity Lubrication in Grinding Process

Bhuyan, M.; Sarmah, Ankita; Gajrani, Kishor Kumar; Pandey, Anish; Thulkar, T.G.; Sankar, Mamilla Ravi

doi:10.1016/j.matpr.2018.06.326

Cited by 10 publications

(3 citation statements)

References 56 publications

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“…The air stream swirling around the periphery of the grinding wheel surrounds it, causing deflection and atomization of the emulsion stream, which, as a result, severely restricts the emulsion's access to the grinding zone and hinders its contact with the abrasive grains on the wheel's active surface [18]. Studies indicate that the MQL method provides better penetration of oil particles and allows lubrication at a higher level than the flood method [19]. The use of the MQL method can contribute to reducing wear phenomena on the active cutting tips causing them to retain their sharpness over a longer period of working time with respect to dry grinding and, when grinding hard steels, also with respect to grinding with coolant feed by the flood method.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Influence of the Cooling Method Used During Grinding on the Operating Properties of Ceramic Grinding Wheels Made with Different Abrasives

Stachurski¹,

Dębkowski²,

Rosik³

et al. 2023

Adv. Sci. Technol. Res. J.

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This article presents the results of a study of the performance characteristics of ceramic grinding wheels during peripheral grinding of flat surfaces carried out using different methods of supplying cooling and lubricating fluid (coolant). In the study, T1 type grinding wheels were used, differing in the type of abrasive used in their construction. The abrasive consisted of mixtures with different volume percentages of: 1) grains of conventional white electro-corundum, 2) grains of submicrocrystalline sintered corundum produced by sol-gel technology, 3) microcrystalline sintered ceramic grains with RECERAMAX™ RT microclasters from RECKEL. Specimens made of 145Cr6 tool steel (60±1 HRC) were ground using coolant feeding by flood method and MQL (Minimum Quantity Lubrication) method. During the study, the components of grinding force (F n , F t ), radial loss of the grinding wheel and roughness of the ground surface were measured, which made it possible to determine the volumetric wear of the grinding wheel V s , the total grinding power P, and then calculate the grinding indicators G and K s . The obtained values of the G index indicate that, regardless of the type of grinding wheel used, a higher relative grinding efficiency was obtained during grinding with the delivery of coolant by the MQL method. The highest values of this index were obtained in the case of the grinding process carried out with a grinding wheel containing RECERAMAX™ RT abrasive. The K s index confirmed the best performance of the mentioned grinding wheel. Since its value also depends on the total grinding power P and the surface roughness parameter Ra, the grinding process carried out with this grinding wheel is additionally characterized by a better quality of the obtained surface and lower energy consumption.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Influence of the Cooling Method Used During Grinding on the Operating Properties of Ceramic Grinding Wheels Made with Different Abrasives

Stachurski¹,

Dębkowski²,

Rosik³

et al. 2023

Adv. Sci. Technol. Res. J.

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“…In addition to the type, the effectiveness of the cooling-lubricating medium in the grinding process is decisively influenced by its expenditure and the effectiveness of reaching the contact zone of the active surface of the grinding wheel with the machined surface directly. For many years, intensive research work has been carried out on the development of new methods for the supply of coolants, because of which the following methods have been developed: minimum quantity lubrication MQL [ 19 , 20 , 21 , 22 ]; minimum quantity cooling MQC [ 23 , 24 ]; minimum quantity cooling lubrication MQCL [ 25 , 26 , 27 , 28 ]; cooled air minimum quantity lubrication CAMQL [ 29 , 30 ]; cold air and oil mist CAOM [ 31 , 32 , 33 , 34 ]. …”

Section: Introductionmentioning

confidence: 99%

Effect of Pro-Ecological Cooling and Lubrication Methods on the Sharpening Process of Planar Blades Used in Food Processing

Zieliński¹,

Nadolny

Zawadka

et al. 2022

Materials

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This work presents the results of an experimental study of the sharpening of planar technical blades used in the fish processing industry. Sharpening was carried out in the grinding process using several environmentally friendly methods of cooling and lubricating the machining zone (MQL method, CAG nozzle, hybrid method that is a combination of MQL and CAG methods, as well as WET flooding method as reference). The purpose of the research was to determine the possibility of reducing the negative environmental impact of the sharpening process of technical blades by minimizing the expenditure of coolant. The application of the MQL method and the hybrid MQL + CAG method provided a very good realization of the lubricating function so that the share of friction of dulled cutting vertices against the workpiece surface is reduced, which manifests itself in the reduction of the grinding force and the correlated grinding power. In the case of grinding under cooled compressed air delivery conditions, the average cutting force was as much as 91.6% higher (F = 22.63 N) compared to the result obtained for the most favorable flooding method, demonstrating the insufficient quality of the blade shaped under such conditions. A comprehensive comparison of test results on grinding power gain, cutting force and surface texture suggests that the most favorable sharpening results were obtained using the environmentally friendly MQL method of cooling and lubricating the grinding zone.

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“…Balan et al [22] found that low-temperature MQL-assisted grinding with 50 ~ 65% lower cutting energy than conventional dry grinding could improve the processability of Inconel 751. Many researchers have reviewed sustainable machining of superalloy materials while outlining the latest trends and requirements [23][24][25]. Jia et al [26] proposed a new method of gas-assisted electrostatic atomized minimum quantity lubrication and found that electrostatic atomized minimum quantity lubrication could signi cantly enhance the processing quality of Ni-base superalloy GH4169 compared to pneumatic atomized minimum quantity lubrication.…”

Section: Introductionmentioning

confidence: 99%

Study on machining performance in grinding of Ni-base single crystal superalloy DD5

Cai¹,

Zhu²,

Yan³

et al. 2022

Preprint

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The Ni-base single crystal superalloy DD5 is commonly employed in critical parts of turbine blades and turbine discs in aeronautical engines. To improve the surface machining quality, single-factor experiments were carried out to investigate the changes of grinding force, surface morphology and chip morphology under different grinding conditions (dry, conventional flood, minimum quantity lubrication). The experiments showed that the conventional flood lubrication and minimum quantity lubrication (MQL) could enormously reduce the surface roughness, grinding force, and work-hardened layer thickness of DD5. At the depth of 5~15 μm, the DD5 subsurface microhardness decreased sharply with the increase of depth, and the microhardness under different grinding conditions was in the order of dry grinding, conventional flood, and MQL. However, at the depth of 20~150 μm, the DD5 subsurface microhardness tended to equilibrate and fluctuate around 540 HV. In addition, compared with dry grinding, the degree of chip serration was obvious in flood or MQL environment, and its chip formation frequency fluctuated less and chip formation was stable. Within the experimental parameters, the MQL grinding machining method obtained the lowest surface roughness and the highest surface quality with the lowest associated cost, which is the ideal grinding and cooling lubrication method for the Ni-base single crystal superalloy.

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State of Art on Minimum Quantity Lubrication in Grinding Process

Cited by 10 publications

References 56 publications

Evaluation of the Influence of the Cooling Method Used During Grinding on the Operating Properties of Ceramic Grinding Wheels Made with Different Abrasives

Evaluation of the Influence of the Cooling Method Used During Grinding on the Operating Properties of Ceramic Grinding Wheels Made with Different Abrasives

Effect of Pro-Ecological Cooling and Lubrication Methods on the Sharpening Process of Planar Blades Used in Food Processing

Study on machining performance in grinding of Ni-base single crystal superalloy DD5

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