An analysis of centrifugal MQL supply system potential in the internal cylindrical grinding process

Nadolny, Krzysztof; Wojtewicz, M.; Sienicki, W.; Herman, Daniela

doi:10.1016/j.acme.2014.08.009

Cited by 26 publications

(12 citation statements)

References 10 publications

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“…Albeit possible, using the abovepresented methods during internal cylindrical grinding is problematic because of the grinding wheel's small dimensions and limited workspace. This is also possible by using the internal delivery grinding fluids system [25,26]. This system enables the coolant to go directly through the arbor and the intergranular free spaces into the grinding zone [23].…”

Section: Pure Demineralized Watermentioning

confidence: 99%

“…The aim to solve this problem led the authors here to work out an innovative MQL method of delivering grinding fluid into the grinding zone in internal cylindrical grinding. The authors of the work [26] showed that usage of the method they proposed is able to achieve better results, comparing to the traditional MQL method, in the nickel alloy internal cylindrical grinding process.…”

Section: Pure Demineralized Watermentioning

confidence: 99%

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Experimental studies using minimum quantity cooling (MQC) with molybdenum disulfide and graphite-based microfluids in grinding of Inconel® alloy 718

Wojtewicz

Nadolny

Kapłonek

et al. 2018

Int J Adv Manuf Technol

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In the paper, the results of experimental studies related with determination of the influence of the supply of a grinding fluid (GF) doped with powdered graphite and MoS 2 into the machining zone with the minimum quantity cooling (MQC) method on the course and results of the reciprocating internal cylindrical grinding of rings made from Inconel® alloy 718 have been presented. As a grinding fluid, water aerosols were used. The aerosols delivered the following into the grinding zone: water slurry MoS 2 with a concentration of 30 g/dm 3 , water slurry of graphite with a concentration of 30 g/dm 3 , 5% water solution of Syntilo RHS oil and pure demineralized water. The obtained results of carried out experiments showed that the most favorable conditions of grinding wheel operation were obtained when MQC-based delivering an aerosol of water slurry made from demineralized water doped with MoS 2 and graphite with a minimum flow rate and when delivering an aerosol of 5% water slurry of Syntilo RHS oil. It was proved that doping GF with powdered MoS 2 and graphite, with delivery in the form of an aerosol with a minimum flow rate, has a substantial influence on the intensity of clogging grinding wheel active surface (GWAS). Additionally, it has been demonstrated that the solid grease MoS 2 and graphite particles reached the area of contact of the GWAS and the machined surface effectively, actively influencing its tribological conditions of the grinding process.

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Section: Pure Demineralized Watermentioning

confidence: 99%

Section: Pure Demineralized Watermentioning

confidence: 99%

Experimental studies using minimum quantity cooling (MQC) with molybdenum disulfide and graphite-based microfluids in grinding of Inconel® alloy 718

Wojtewicz

Nadolny

Kapłonek

et al. 2018

Int J Adv Manuf Technol

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“…Cooling and lubrication fluids are used in cutting processes to improve the tribological properties of the processes which always occur on the contact surface between the tool point and the machined object. Different methods for introducing fluids into contact zone can be used, particularly the minimum quantity cooling lubricant (MQCL) or the minimum quantity lubricant (MQL) methods as an alternative to flood lubricating system [6,7,12]. To compensate low cooling ability, i.e.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Conditions of Emulsion Mist Formation on the Surface Roughness of Aisi 1045 Steel After Finish Turning

Feldshtein

Jóźwik

Legutko

2016

Adv. Sci. Technol. Res. J.

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The processes of machining have vital influence on the operating properties of machine parts because they ensure the formation of the required geometrical structure of the working surfaces and the condition of the top layer. In this paper the influence of emulsion mist parameters on Ra, Rz and RSm surface roughness parameters is described when finishing the turning of C45 carbon steel. It was found that cutting parameters have considerably greater influence on roughness parameters in comparison with emulsion mist conditions. When increasing cutting speed from 100 to 300 m/min Ra and Rz values decrease nearly 2 times, but RSm value does not depend on speed. When increasing feed rate from 0.1 to 0.2 mm/rev Ra, Rz and RSm values increase more than twice. Changes of emulsion mass flow and compressed air flow affect roughness parameters reach 9-15% of maximum. It was shown that Parameter Space Investigation method can be used efficiently for quick analysis of tested parameters and optimization of their values.

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“…The histogram shows that the minimum values of Espec can be achieved with the simultaneous use of chromium diiodide impregnated grinding wheel and the cooling lubricant, which consists of 5% aqueous solution of emulsion "Ukrinol-14" with the addition of 20 g/l of chromium diiodide. Apparently in this case, chromium diiodide, which is a part of lubricating and cooling technology, not only reduces the coefficient of friction in the area of contact of the abrasive grain with the processed material, but also contributes to the permanent restoration of chromium diiodide in the impregnated wheel [24][25][26][27][28][29][30][31].…”

Section: The Analysis Of Spectrogramsmentioning

confidence: 99%

Method for Improving the Quality of the Product Obtained by Abrasive Treatment with Impregnated Tools

Butenko¹,

Gusakova²,

Durov³

et al. 2020

Adv. sci. technol. eng. syst. j.

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The article describes a way to increase the efficiency of an abrasive tool by its impregnation in an aqueous solution of chromium diiodide. The device scheme for impregnating the instrument is proposed. Research results of durability of tools impregnated with chromium diiodide and structural condition of material of a surface layer of details after processing are resulted. Within of the researches presented in the article the grinding processing a shafts made from various iron-carbon steels with prepared abrasive tools was conducted. As a result of the machining the scattering fields of the batch sizes of the parts within the grinding wheel resistance were determined. This data for processing with standard grinding wheels and impregnated by chromium diiodide were done. Using data from controlled grinding of workpieces, approximate values of the KΔ coefficient were determined depending on the diameter of the workpiece surface, the required size accuracy of part and the method application of the surfactants. It is shown that regardless of the material being processed, the use of a grinding wheel impregnated with chromium diiodide leads to a reduction in the specific value of the accumulated deformation energy Espec. Taking into account these results it is possible to predict up to twofold reduction of the cost of machining with the abrasive tool of grinding parts, which will reduce the cost of their manufacture by 20-25%. The developed process of impregnating grinding wheels with chromium diiodide can be used without large economic costs in many machine-building company also during repair works.

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An analysis of centrifugal MQL supply system potential in the internal cylindrical grinding process

Cited by 26 publications

References 10 publications

Experimental studies using minimum quantity cooling (MQC) with molybdenum disulfide and graphite-based microfluids in grinding of Inconel® alloy 718

Experimental studies using minimum quantity cooling (MQC) with molybdenum disulfide and graphite-based microfluids in grinding of Inconel® alloy 718

The Influence of the Conditions of Emulsion Mist Formation on the Surface Roughness of Aisi 1045 Steel After Finish Turning

Method for Improving the Quality of the Product Obtained by Abrasive Treatment with Impregnated Tools

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