Parametric Investigation into Alumina Nanopowder Mixed EDM of Inconel 825 Alloy Using RSM

Sahu, Deepti Ranjan; Kumar, Amit; Roy, Biplab; Mandal, Amitava

doi:10.1007/978-981-13-6412-9_16

Cited by 8 publications

(7 citation statements)

References 7 publications

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“…This effect reduces as the voltage is reduced. These results agree with previous studies in which alumina has been shown to improve the MRR in transistor circuits at high peak voltages [ 22 , 32 ]. However, in fine-finishing micro-EDM using RC circuits, such as this study, the improvement in the MRR is not significant.…”

Section: Resultssupporting

confidence: 93%

“…Liew et al [ 21 ] have used carbon nanofiber-assisted EDM of reaction-bonded silicon carbide and have significantly improved material removal and electrode wear rates. Sahu et al [ 22 ] and Jahan et al [ 23 ] have used nano-alumina powder in the EDM of Inconel and tungsten carbide, respectively. They have shown an increase in the material removal rate and a decrease in the surface roughness for specific parametric values.…”

Section: Introductionmentioning

confidence: 99%

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Micro Electrical Discharge Machining of Ultrafine Particle Type Tungsten Carbide Using Dielectrics Mixed with Various Powders

Gattu

Yan

2022

Micromachines

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Electrical discharge machining (EDM) is widely used to machine hard materials, such as tungsten carbide; however, the machining rate and surface quality are low. In this research, the effects of mixing electrically conductive carbon nanofiber (CnF), semiconductive silicon (Si) powder, and insulative alumina powder (Al2O3) at different concentrations in a dielectric fluid were studied by observing single discharge craters and hole machining performance in the EDM of ultrafine particle type tungsten carbide. Craters obtained using carbon nanofiber and alumina were much smaller than in oil-only conditions. In contrast, The results show that adding CnF significantly improved the material removal rate under all conditions. Si and Al2O3 powders only improved the machining performance at a high discharge energy of 110 V. Furthermore, improvement in surface roughness was observed prominently at high voltages for all the powders. Among the three powders, alumina was found to improve the surface roughness the most.

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Micro Electrical Discharge Machining of Ultrafine Particle Type Tungsten Carbide Using Dielectrics Mixed with Various Powders

Gattu

Yan

2022

Micromachines

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“…The confirmatory experiments showed strong confidence, with only an 8.65% deviation. Sahu et al 162 implemented the Box-Behnken approach of response surface methodology and utilized a lesser number of trials, the experiment was designed. It was concluded that all the input parameters considered were consequential.…”

Section: Significant Results Elucidated By Different Researchmentioning

confidence: 99%

“…The increase in tool wear rate was increased by 58% and 37% when aluminium and graphite powders were added respectively. Sahu et al 162 utilized ANOVA to analyse the trend in the MRR and SR with input parameters. MRR increased with pulse duration up to a certain, and then it decreased.…”

Section: Parametric Optimizationmentioning

confidence: 99%

An insight on Powder Mixed Electric Discharge Machining: A state of the art review

Srivastava¹,

Vishnoi²,

Gangadhar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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Electrical discharge machining (EDM) is an exigent focus of interest for researchers since its inception. EDM has a wide range of applications due to its non-contact machining process based on the spark erosion method. EDM is a non-conventional machining process with high potential in the recent industrial era. Due to the few limitations of EDM, many hybrid techniques are evolved in recent years. The present review paper elucidates the in-depth mechanism of the material removal process in EDM. Hybrid EDM processes are also reviewed with special attention on powder mixed electrical discharge machining (PMEDM). A detailed comparison between the EDM and PMEDM is presented with a meticulous portrayal of the advancement and evolution of PMEDM. The emphasis is given on significant performance parameters, namely tool wear rate, material removal rate and surface roughness, besides other parameters. In addition, the study also includes different modelling, optimization, and surface analysis techniques on EDM. The paper concludes with the future scope of PMEDM in the fields of manufacturing along with its applications.

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“…Multi-objective optimization was carried out using GRA to determine maximum MRR and minium SR. Ramesh and Jenarthanan (2018) tried addition of Al powder in EDM oil to machine the Nimonic 75 through EDM process and found improvement in SR and TWR. Sahu et al (2019) reported increase in MRR and improvement in SR by 19% and 11%, respectively on machining of Inconel 825 with alumina powder suspended in EDM oil through EDM process. Surface morphology shown in Fig.…”

Section: Pm-edm Of Othersmentioning

confidence: 96%

Study on Powder Mixed Elecrtical Discharge Machining Process: A Review

Rouniyar¹,

Shandilya²

2019

DAAAM International Scientific Book 2019

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Powder mixed electric discharge machining (PM-EDM) process is a hybrid machining process by which the required profile is attained using thermal energy of sparks between tool and workpiece with addition of powder in dielectric fluid at low pulse energy. PM-EDM process enhances the capabilities of EDM process on machining of difficult to cut materials. This chapter explores the findings of research work carried out so far in the domain of PM-EDM of different hard and conductive materials. The effect of aided conductive powder into the dielectric fluid, electrical and non-electrical EDM process parameters on performance characteristics for machining various advanced materials has been studied under this chapter. This chapter also reviewed the industrial and academic work performed by various researchers from the origin to development of PM-EDM over the past decades. The research findings with major challenges along with the future scope have also been paved out.

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Parametric Investigation into Alumina Nanopowder Mixed EDM of Inconel 825 Alloy Using RSM

Cited by 8 publications

References 7 publications

Micro Electrical Discharge Machining of Ultrafine Particle Type Tungsten Carbide Using Dielectrics Mixed with Various Powders

Micro Electrical Discharge Machining of Ultrafine Particle Type Tungsten Carbide Using Dielectrics Mixed with Various Powders

An insight on Powder Mixed Electric Discharge Machining: A state of the art review

Study on Powder Mixed Elecrtical Discharge Machining Process: A Review

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