The effect of minimum quantity lubrication under different parameters in the turning of AA7075 and AA2024 aluminium alloys

Çakır, Ali; Yağmur, Selçuk; Kavak, Nergizhan; Küçüktürk, Gökhan; Şeker, Ulvi

doi:10.1007/s00170-015-7878-4

Cited by 46 publications

(29 citation statements)

References 15 publications

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“…The fact that continuous chip formed in some experiments exhibits more uncontrolled behavior with the increase in the cutting speed, and causes deformation on the workpiece surface leads to irregular changes in the values of the surface roughness. 52 While the highest Ra value was attained at 0.5 mm/ rev feed rate and 125 m/min cutting speed, the lowest Ra value was attained at 0.16 mm/rev feed rate and 100 m/min cutting speed. When the graphics in Figures 7 and 8 are examined, it is seen that MQL application reduced Ra values in general compared to dry machining.…”

Section: Surface Roughnessmentioning

confidence: 87%

Optimization and evaluation of dry and minimum quantity lubricating methods on machinability of AISI 4140 using Taguchi design and ANOVA

Gürbüz

Gönülaçar

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this work, it is aimed to study the effects of dry machining and minimum quantity lubrication application on machinability in turning AISI 4140 steel by utilizing different cutting parameters. Also, this study contains effects and optimization of cutting conditions (dry and minimum quantity lubricating), feed rate, and cutting speed on surface roughness (Ra) and main cutting forces (Fc) determined by employing the Taguchi method. At the end of experiments, it was established that compared to dry machining operations, minimum quantity lubricating significantly reduced cutting tool wear, while Fc and Ra decreased in general. Analyses of variance, regression analysis, signal-to-noise ratio, and orthogonal array were employed to analyze the effects and contributions of independent variables on dependent variables. The optimum levels of the dependent variables for reducing Fc and Ra using signal-to-noise rates were established. According to signal-to-noise ratios, minimum quantity lubricating had a more important effect on Fc and Ra than dry machining. The optimal conditions for Fc and Ra were at 0.16 mm/rev feed rate, 125 m/min cutting speed at minimum quantity lubricating. Analysis of variance results demonstrated that the feed rate is the most influential independent variable on Fc (93.976 %) and Ra (89.352 %). Validation test results exhibited that the Taguchi method and regression analysis were highly achieved methods in the optimization of independent variables for dependent variables. Taguchi optimization technique and regression analysis obtained from Fc ([Formula: see text] = 0.972 and [Formula: see text] = 0.997) and Ra ([Formula: see text] = 0.985 and [Formula: see text] = 0.996) measurements match really well with the experimental data.

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Section: Surface Roughnessmentioning

confidence: 87%

Optimization and evaluation of dry and minimum quantity lubricating methods on machinability of AISI 4140 using Taguchi design and ANOVA

Gürbüz

Gönülaçar

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…A. Çakırin reported that increased feed rate and cutting speed had a negative effect on surface quality, while increased flow rate exhibited a positive effect on surface quality [19]. From Figure 3 it is clearly understood that for dry machining (i.e., 0 mL/h) the surface roughness value is relatively high from 3-4 micrometres, but for 100 mL/h rate of flow, the value is 0-2 micrometres only.…”

Section: Effect Of Rate Of Flow On Surface Roughnessmentioning

confidence: 90%

Machinability Study of Developed Composite AA6061-ZrO2 and Analysis of Influence of MQL

James

Annamalai

2018

Metals

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Aluminium metal matrix replaces high melting point and high density conventional materials, thus minimizing the usage of energy and supporting the environment. This work develops a low-weight, high-strength composite material with the help of AA 6061 and ZrO 2 through a stir casting route incorporated with a squeeze casting setup. Machining and machining tools create impacts on clean environments, as they deal with lubricants and power consumption. Having taken this issue into consideration, this research studies the effect of machining parameters on surface roughness, tool wear, and cutting force, while turning the developed metal matrix composite in dry and minimum quantity lubrication conditions. The turning experiment was performed by designing parameters using an L 27 orthogonal array. The turning condition was dry and with minimum quantity lubrication (MQL). The responses obtained in the turning process were analysed using the analysis of variance (ANOVA) technique to find the most influential factor and its percentage contribution. Optimal machining parameters were investigated and tabulated with the help of main effect plots and S/N ratio graphs. Studies prove that there is a linear relationship between MQL versus surface roughness and tool wear, and there was no substantial effect on cutting force.

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“…They analysed surface roughness and tool wear and found that the PCD tool produced a better result in all aspects. Cakir et al [24] machined aluminium at different cutting parameters. They used the Minimum Quantity Liquid (MQL) method to improve machinability.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of cutting parameters on cutting forces and surface roughness in dry turning of Al using PCD and different coated tools

et al. 2019

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Aluminium (Al) is the suitable material for aerospace and automotive industries due its light weight, corrosion resistance, weldability, non-magnetic and mechanical properties. But, machining of Al and its alloy and finding the suitable tool is really a big challenge because of its formation of BUE (Built-up Edge) and BUL (Built-up Layer). This paper presents the influence of cutting parameters (speed, feed and depth of cut) and its effect on the cutting force and the surface finish. Five different advanced cutting tool inserts (SPUN WC, SPGN WC, PCD, WC ? TiN and WC ? Ti(C, N) TiN ? Al 2 O 3 ) at different cutting speed (V c ) ranging between 300 m/min and 700 m/min and feed rate (f) of 0.045, 0.06, 0.09 and 0.125 mm/rev at a depth of cut of 0.2 mm (constant throughout the experiment) were taken for the experiment. Tool inserts were characterized by Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX) analysis. The cutting forces were measured using Kistler force dynamometer. Amongst all tools, PCD provided a better result in all aspects but surprisingly WC tool provided a better surface finish with lesser tool wear. For all cutting conditions, high speed (670 m/min) and low feed rate (0.045 mm/rev) were recommended. adhana(0123456789().,-volV)FT3 ](0123456789().,-volV)

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The effect of minimum quantity lubrication under different parameters in the turning of AA7075 and AA2024 aluminium alloys

Cited by 46 publications

References 15 publications

Optimization and evaluation of dry and minimum quantity lubricating methods on machinability of AISI 4140 using Taguchi design and ANOVA

Optimization and evaluation of dry and minimum quantity lubricating methods on machinability of AISI 4140 using Taguchi design and ANOVA

Machinability Study of Developed Composite AA6061-ZrO2 and Analysis of Influence of MQL

Influence of cutting parameters on cutting forces and surface roughness in dry turning of Al using PCD and different coated tools

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