Optimizing the machining variables in CNC turning of aluminum based hybrid metal matrix composites

Butola, Ravi; Kanwar, Susheem; Tyagi, Lakshay; Singari, Ranganath M.; Tyagi, Mohit

doi:10.1007/s42452-020-3155-8

Cited by 29 publications

(15 citation statements)

References 26 publications

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“…There are a variety of techniques available for fabricating composites out of them all; one technique that is finding the interest of researchers is stir casting. Stir casting is a method of fabrication of composite material in a liquid state; it is a simple, cost-effective and flexible method for fabricating composite materials in the liquid state (Butola et al , 2019a; Butola et al , 2020c).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of microhardness and wear properties of Al 6063 composite reinforced with yttrium oxide using stir casting process

Butola

Yuvaraj

Singh

et al. 2021

WJE

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Purpose This study aims to analyse the changes in mechanical and wear performance of aluminium alloy when yttrium oxide particles are incorporated. The microstructures are studied to analyse the change in the grain structures. Worn surfaces are observed via scanning electron microscope to study the wear mechanism in detail. Design/methodology/approach Stir casting is used to incorporate varying composition of yttrium particles, having an average particle size of 25 micrometer, in aluminium alloy 6063 matrix. Wear testing is carried out by DUCOM manufactured high temperature rotatory tribometer, and an indentation test is used for analysing the microhardness of the fabricated samples. Findings Microhardness of the material is increased with the increasing content of particulate addition. With the increasing content of reinforcement, more refined grains are produced. The load is transferred from the matrix to more rigid yttrium oxide particles. These factors contributed to escalated microhardness of the reinforced samples. Particulate addition enhanced the wear performance of the material; this might be attributed to increased microhardness and formation of an oxide layer. Originality/value Aluminium composites are finding wide applications in various industries, and there is always a requirement of material with enhanced tribological properties. Yttrium oxide particles exhibit improved mechanical properties, and their interaction with the aluminium matrix has not been studied much in the past. So, in this work, yttrium oxide incorporated aluminium matrix is studied.

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Section: Introductionmentioning

confidence: 99%

Evaluation of microhardness and wear properties of Al 6063 composite reinforced with yttrium oxide using stir casting process

Butola

Yuvaraj

Singh

et al. 2021

WJE

Self Cite

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“…In basic pH conditions, OH − anions plus H 2 O assaults the SiO 2 lavished glass matrix persuading the depolymerization cycle at the glass conformation. Hence, ceaseless disintegration can bring about dissolving the silicate matrix, with the consequent vanishing of the unique glass surface (Varshneya, 2013;Butola et al,2019Butola et al, , 2020Butola et al, , 2021. Previous in vitro studies suggested that surface erosion is a function of time, temperature, and pH (Xia et al, 2014;Bernhardt, 1941;Oyafuso et al, 2008;Gale and Darvell, 1999).…”

Section: Discussionmentioning

confidence: 99%

Influence of thermal and pH cycles on surface characteristics lithium disilicate glass-ceramic dental crowns milled with CAD/CAM process

Singh

Gulati

2021

WJE

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Purpose The paper aims to evaluate the influence of thermo-chemical cycles of oral fluids on the surface attributes (roughness and microhardness) of lithium disilicate glass-ceramic (LDC) crown restorations manufactured with CAD/CAM technology. Design/methodology/approach There have been 24 LDC crowns manufactured using the CAD/CAM process for their respective preparation dies ply methyl methacrylate (PMMA) of mandibular left second premolar tooth (n = 8 each group). The standard procedure was used to glaze 16 crown samples (Groups 2 and 3).Samples of Group 3 were aged with thermal (563°C and 5563°C) and pH (2–14) cycles. All 24 samples were tested with a Profilometer and a Vicker hardness tester was used for their surface roughness and hardness measurement, respectively. Findings In statistical examination on SPSS Statistics 20 (IBM) software, of surface roughness values (Ra) and Vicker hardness values from different groups, Tukey HSD test was executed in one-way ANOVA (a = 0.05). The means Ra for groups were accordingly Group 3 > Group1 > Group 2 (p < 0.001). Similarly, micro-hardness was in order of Group 2 > Group 1 > Group 3 (p < 0.001). Research limitations/implications The research work does not have any limitations. Originality/value Surrounding temperature and pH significantly impact the surface characteristics of lithium disilicate crown restoration. The study also reveals the inverse relationship between surface roughness and surface hardness parameters. The observed results and facts revealed well in agreement with the past research studies.

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“…EDM with respect to economic aspects was discussed, keeping in view the input and output parameters [ 19 ]. Peak current has been found to be the most important influencing factor for surface roughness for EN 31 die steel [ 20 , 21 ]. An initial speedy rise in surface roughness (SR) with a rise in pulse-off time was found for an aluminium-7075 metal matrix, with the SR slowly decreasing as the pulse-off time rose further.…”

Section: Introductionmentioning

confidence: 99%

Parametric Optimization for Quality of Electric Discharge Machined Profile by Using Multi-Shape Electrode

et al. 2022

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The electrical discharge machining (EDM) process is one of the most efficient non-conventional precise material removal processes. It is a smart process used to intricately shape hard metals by creating spark erosion in electroconductive materials. Sparking occurs in the gap between the tool and workpiece. This erosion removes the material from the workpiece by melting and vaporizing the metal in the presence of dielectric fluid. In recent years, EDM has evolved widely on the basis of its electrical and non-electrical parameters. Recent research has sought to investigate the optimal machining parameters for EDM in order to make intricate shapes with greater accuracy and better finishes. Every method employed in the EDM process has intended to enhance the capability of machining performance by adopting better working conditions and developing techniques to machine new materials with more refinement. This new research aims to optimize EDM’s electrical parameters on the basis of multi-shaped electrodes in order to obtain a good surface finish and high dimensional accuracy and to improve the post-machining hardness in order to improve the overall quality of the machined profile. The optimization of electrical parameters, i.e., spark voltage, current, pulse-on time and depth of cut, has been achieved by conducting the experimentation on die steel D2 with a specifically designed multi-shaped copper electrode. An experimental design is generated using a statistical tool, and actual machining is performed to observe the surface roughness, variations on the surface hardness and dimensional stability. A full factorial design of experiment (DOE) approach has been followed (as there are more than two process parameters) to prepare the samples via EDM. Regression analysis and analysis of variance (ANOVA) for the interpretation and optimization of results has been carried out using Minitab as a statistical tool. The validation of experimental findings with statistical ones confirms the significance of each operating parameter on the output parameters. Hence, the most optimized relationships were found and presented in the current study.

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Optimizing the machining variables in CNC turning of aluminum based hybrid metal matrix composites

Cited by 29 publications

References 26 publications

Evaluation of microhardness and wear properties of Al 6063 composite reinforced with yttrium oxide using stir casting process

Evaluation of microhardness and wear properties of Al 6063 composite reinforced with yttrium oxide using stir casting process

Influence of thermal and pH cycles on surface characteristics lithium disilicate glass-ceramic dental crowns milled with CAD/CAM process

Parametric Optimization for Quality of Electric Discharge Machined Profile by Using Multi-Shape Electrode

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