A review of performance optimization and current research in PMEDM

Jawahar, M.; Reddy, Ch. Sridhar; Srinivas, Ch.

doi:10.1016/j.matpr.2019.08.122

Cited by 20 publications

(8 citation statements)

References 15 publications

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“…[14][15][16][17][18][19][20][21] These process parameters influenced the performance parameter, primarily Material Removal Rate, Tool Wear Rate, Surface Roughness, Overcut and Electrode Wear Rate, to name a few. [22][23][24][25][26] Machining mechanism of EDM and its working EDM is a derivative of spark machining and is characterized by its non-contact machining process. It removes materials by bombarding the workpiece with consecutive, rapid spark discharges from the electric pulse generators and flushes debris with the dielectric fluid flowing between electrode gaps.…”

Section: Essential Parameters In Electric Discharge Machiningmentioning

confidence: 99%

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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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Section: Essential Parameters In Electric Discharge Machiningmentioning

confidence: 99%

“…14–21 These process parameters influenced the performance parameter, primarily Material Removal Rate, Tool Wear Rate, Surface Roughness, Overcut and Electrode Wear Rate, to name a few. 22–26…”

Section: Introductionmentioning

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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“…Therefore, the presence of the nanoparticles cause to enhances the discharge frequency [7], accelerates the spark ignition and increases the overall MRR [8]. An important remark is that different powders generate different effects on the EDM performance [9]. These effects include improving on the surface quality and material removal rate, inhibiting or signi cantly reducing the formation of micro-sized cracks on the surface and reducing tool wear rate (TWR).…”

Section: Introductionmentioning

confidence: 99%

Influence of Zno nanoparticle addition and Spark Peak Current on EDM Process of AISI 1045, AISI 4140, and AISI D3: MRR, Surface Roughness, and Surface Texture

Pour¹,

Sm²,

El³

2021

Preprint

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In the recent studies, the effects of different metal oxide nanoparticles addition in different dielectrics of EDM process has been thoroughly investigated, showing that adding the nanoparticles improves the material removal rate and surface roughness. The results illustrate that the parameters such as density, particle size, particle concentration, and electrical and thermal conductivity of the nanoparticles can affect the process performance. Compared to the other metal oxides, ZnO has lower thermal and higher electrical resistance which makes it distinct from other nanoparticles used in EDM process in terms of physical properties. In this paper, the effects of the variation of peak current,and ZnO particle mass on MRR, surface roughness, and thermal conductivity of AISI1045، AISI4140, and AISID3 in EDM process are investigated. The results illustrate that 4 grams of the ZnO nanoparticle mass increase the MRR up to 10.71%, 50%, and 45.55%, for rough machining of AISI1045, AISI4140, and AISID3, respectively. In finish machining, they show that the surface roughness can be improved 16.66%, 29.41%, and 56.25%, respectively. It is observed that the amount of deposited particles on AISID3 is maximum followed by AISI 1045 and AISI4140. Therefore, in AISID3 both significant improvement of surface roughness and ZnO deposition can be achieved.

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“…Improving the machining efficiency of micro EDM is often at the cost of sacrificing the machined surface quality, resulting in the machined surface being too rough to meet the surface quality requirements of key structures of aeroengineering [7][8][9]. In order to further improve the machining efficiency on the premise of ensuring the machined surface quality of micro EDM, particle mixed electrical discharge machining (PMEDM) technology has been studied by lots of scholars [10][11][12]. It has been indicated that the discharge state during EDM can be changed by adding Al, Si, and other micro powders into the liquid dielectric, thus, the machining efficiency is improved and the surface roughness is reduced.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Processing TC4 with Nano Particle Surfactant Mixed Micro EDM

Liu

Chen³

et al. 2021

Materials

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Micro electrical discharge machining (micro EDM) is able to remove conductive material by non-contact instantaneous high temperature, which is more suitable for machining titanium and its alloys compared with traditional machining methods. To further improve the machining efficiency and machined surface quality of micro EDM, the nano particle surfactant mixed micro EDM method is put forward in this paper. Experiments were conducted to explore the effect of nano particle surfactant on the micro EDM performance of titanium alloy. The results show that the material removal rate of micro EDM in dielectric mixed with TiO2 is the highest when open-circuit voltage is 100 V, followed by Al2O3 and ZrO2. Lower tool wear rate can be produced by using dielectric mixed with nano particle surfactant. The taper ratio of micro EDM in dielectric mixed with nano particle surfactant is higher than that in deionized water. The surface roughness Ra of micro EDM in dielectric mixed with TiO2 can be 50% lower than that in deionized water. It is helpful to improve the machining performance by adding surface surfactant in the dielectric of micro EDM.

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A review of performance optimization and current research in PMEDM

Cited by 20 publications

References 15 publications

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

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

Influence of Zno nanoparticle addition and Spark Peak Current on EDM Process of AISI 1045, AISI 4140, and AISI D3: MRR, Surface Roughness, and Surface Texture

An Experimental Study on Processing TC4 with Nano Particle Surfactant Mixed Micro EDM

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