Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes

Prihandana, Gunawan Setia; Mahardika, Muslim; Hamdi, M.; Wong, Yoke San; Mitsui, Kimiyuki

doi:10.1007/s00170-011-3152-6

Cited by 86 publications

(34 citation statements)

References 9 publications

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“…Nevertheless, it is possible to enhance EDM performance through a number of methods. In this regard, ultrasonic vibration of a silver-tungsten workpiece and using graphite powder-mixed dielectric in EDM appeared to effectively improve surface quality, eliminate micro-cracks as well as reduce machining time by 35% [10]. In another study, tool vibration in EDM yielded higher micro-hardness as well as thinner heataffected zone and recast layer on the machined surface [11].…”

Section: Introductionmentioning

confidence: 95%

Employing Ti nano-powder dielectric to enhance surface characteristics in electrical discharge machining of AISI D2 steel

Marashi

Sarhan

Hamdi

2015

Applied Surface Science

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Section: Introductionmentioning

confidence: 95%

Employing Ti nano-powder dielectric to enhance surface characteristics in electrical discharge machining of AISI D2 steel

Marashi

Sarhan

Hamdi

2015

Applied Surface Science

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“…Suspension of carbon nano-tube (CNT) in the dielectric fluid resulted in reduced micro-cracks and better surface morphology when compared with pure dielectric fluid 7 . Addition of graphite nono-powder (55 nm), the metal removal rate increased by 35%, micro-crack density reduced from 0.03 /cm to 0.004 /cm and surface roughness value reduced from 1.8 µm to 1.4 µm when compared to pure dielectric fluid 8 . Even though addition of metallic powders to oil based dielectric fluids found be advantageous and efficient over EDM, less work is done on powder mixed water-based dielectric fluids.…”

Section: Introductionmentioning

confidence: 98%

Surface Morphology of Die-Steel Machined with Al Powder Mixed Distilled Water and Kerosene in Edm A Comparison

2018

IJCTR

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:In this paper, an attempt has been made to compare the effect of Al powder mixed distilled water and kerosene dielectric fluids with respect to white-layer thickness (WLT) and surface morphology. The work and tool electrode materials used are W300 die-steel and electrolytic copper respectively. Pulse peak current, pulse on-time and concentration of Al powder are taken as the process parameters to study white-layer thickness. The experiments are planned using face centred central composite design procedure (FCCCD). From the experimental results it is found that, better surface morphology obtained at 4 g/l of Al in kerosene at high peak current of 18 A.

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“…The powders that are used till date are aluminium, graphite, copper, chromium, silicon carbide, etc. [15]. The use of powder enhances the EDM process which includes the increase in MRR and improves the surface quality.…”

Section: Introductionmentioning

confidence: 99%

“…With the improvement of nanotechnology, nanoparticles were introduced in the EDM dielectric fluid to improve yet more surface quality and hence eliminating micro-cracks. Moreover, the suspension of nanoparticles produces a high sparking gap [15]. Factors such as particle size, density and concentrations, electrical resistivity and thermal conductivity of powder sustain effectively in improving the surface quality of the EDM processes [16].…”

Section: Introductionmentioning

confidence: 99%

A review on machining of metal matrix composites using nanoparticle mixed dielectric in electro-discharge machining

Mohanty¹,

Routara²

2016

Int. J. Automot. Mech. Eng.

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The growth in the new advanced materials that are harder till date have led to the improvement of technologies used to machine them. Nowadays, new materials have been developed to be used in different sectors where lighter and harder materials are in vast requirement. Moreover, materials machined with high precision machine tools have to provide the greatest surface finish such that it catches the pace with other competitive materials. Research has shown that the electro-discharge machining (EDM) is the only machine tool that has created history in machining hard materials. In the recent years, metal matrix composites (MMCs) have an increasing demand in the industries since they are hard materials to machine and a good finish is required in the aerospace, marine, aircraft, nuclear and other similar industries. Thus, EDM has gained fame in machining MMCs. With due course, the powder mixed electro-discharge machining (PMEDM) has created efficient EDM, with the use of powders in the dielectric. The dielectric mixed EDM has been used for efficient material removal rate (MRR). With the change in technologies, the sizes of powders that have to be added in the dielectric fluid go on decreasing. In this review, studies by numerous researchers on the MMCs that are machined with the use of PMEDM are mentioned. The powders used in the experimentation are of nano size. Furthermore, the optimization technique used by the researchers is discussed in the present study.

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Accuracy improvement in nanographite powder-suspended dielectric fluid for micro-electrical discharge machining processes

Cited by 86 publications

References 9 publications

Employing Ti nano-powder dielectric to enhance surface characteristics in electrical discharge machining of AISI D2 steel

Employing Ti nano-powder dielectric to enhance surface characteristics in electrical discharge machining of AISI D2 steel

Surface Morphology of Die-Steel Machined with Al Powder Mixed Distilled Water and Kerosene in Edm A Comparison

A review on machining of metal matrix composites using nanoparticle mixed dielectric in electro-discharge machining

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