Feasibility of Jatropha and Rice bran vegetable oils as sustainable EDM dielectrics

Chakraborty, Tapas; Sahu, Deepti Ranjan; Mandal, Amitava; Acherjee, Bappa

doi:10.1080/10426914.2022.2089891

Cited by 10 publications

(7 citation statements)

References 49 publications

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“…A bio-dielectric with relatively higher viscosity produces a sticky adhesive wet surface, which enables a better surface finish to be attained. 36 Moreover, the high viscosity dielectric approaches a high carrying ability of debris and the capability to quickly remove processing residues. 35 This may efficiently clean the machining gap of debris and minimize the amount of residue on the work surface.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

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Comparative performance investigation and sustainability assessment in electrical discharge machining of SS316 using different dielectrics

Sethy,

Rana,

Sharma

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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In electrical discharge machining, the material removal phenomenon is heavily influenced by the breakdown strength of the dielectric fluid and the inter-electrode gap monitoring. This innovative research addresses a comparative performance evaluation and sustainability assessment between biodegradable palm oil and conventional EDM oil during machining of stainless steel (SS-316) using copper electrode. The cutting performance is investigated by comprehensive result analysis of various machinability aspects including material removal rate, surface integrity, tool wear rate, radial overcut of machined components. According to the findings, machining with palm oil dielectric outperformed the usual EDM oil with regards to improved material removal, surface morphology and finish, increased machined surface hardness with minimum surface crack density and hole overcut. Pyrolysis of conventional EDM dielectric oil leads to deposition of thin film carbon on bottom surface of the copper electrode which prevents the quick tool wear due to its higher breakdown voltage. The total machining cost expenditure per component under palm oil (INR383) is reduced by 11% than expenditure in traditional EDM oil (INR426). Compared to EDM oil, machining under biodegradable palm oil as dielectric fluid is better socio-economical viable and environmental conscious to enhance sustainability.

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Section: Discussion Of Resultsmentioning

confidence: 99%

“…Compared to EDM oil, UCOB was shown to have marginally better performance. Chakraborty et al 36 studied the effectiveness of jatropha, rice bran and EDM oil. According to results, the MRR variation patterns for jatropha and rice bran biodiesel were comparable to EDM oil.…”

Section: Introductionmentioning

confidence: 99%

Comparative performance investigation and sustainability assessment in electrical discharge machining of SS316 using different dielectrics

Sethy,

Rana,

Sharma

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…Figures 9-11 confirms that the crater size is reduced with graphene particles mixed coconut biodiesel under-considered parametric conditions. It is also monitored from the figures 9-12 that the crater size increases with an increase in particles concentration at considered machining condition [28]. When the particles concentration increases, the possibility of agglomeration of particles leads to non-uniform distribution of thermal energy and deposition of debris on crater boundary resulting in a broader crater.…”

Section: Impact Of Parameters On Crater Sizementioning

confidence: 91%

“…The MWCNT particles mixed Kusum oil improved the interelectrode gap distance and sparking frequency that yields a smooth surface compared to synthetic oil [27]. An investigation on viability of rice bran BD was assessed and demonstrated that the rice bran BD can be a alternative for mineral oil interms of MRR and SR [28]. Feasibility of different bio-dielectrics namely Pongamia and Jatropha oil were analyzed during machining of die steel.…”

Section: Introductionmentioning

confidence: 99%

Effect of graphene dispersed coconut biodiesel on the Micro ED milling characteristics of Inconel 718 alloy

Arun Pillai,

Saravana Kumar

2023

Surf. Topogr.: Metrol. Prop.

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Micro Electrical discharge milling is a familiar micromachining process for machining of complex microstructures using a cylindrical tool. In this research work, the influence of process parameters namely capacitance, voltage, threshold on response indicators during machining of Inconel 718 with coconut biodiesel and graphene nano powder dispersed coconut biodiesel is investigated in detail. Further, surface-topography of the machined surface was critically examined using scanning electron microscopy and three-dimensional non-contact roughness tester. Graphene nano powder concentration (0.3g/l) increased the MRR around 68 % compared to coconut biodiesel (BD). A medium order of capacitance (10nF) offered a maximum MRR irrespective of dielectric used. With higher order capacitance, the minimum TWR is obtained due to longer pulse off duration. High surface finish is achieved with graphene nano powder dispersed coconut BD due to uniformly distributed of craters on the machined surface. Recast layer thickness is 3.08 μm, 1.62 μm and 2.34 μm with coconut biodiesel, 0.3 g/L and 0.6 g/L graphene particles mixed coconut biodiesel, respectively. Minimum recast layer is observed with graphene particles mixed coconut biodiesel under considered parametric conditions due to lesser eroded particle deposition. EDS results confirm that the sedimentation of graphene nano powder (increase in carbon %) on work surface results in increase in hardness. Crater size, voids and cracks were reduced with graphene nano powder dispersed coconut BD due to uniform distribution of heat energy over machining region. Results showed that the graphene nano powder mixed coconut biodiesel can be the substitute for mineral oil

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“…An investigation on sustainability of vegetable oils namely Jatropha BD and Rice bran BD at various machining condition was conducted. It was found that the jatropha BD produced higher metal erosion rate and good surface finish compared to rice bran oil at considered parametric settings [12]. Machinability of Inconel 718 in EDM with castor oil and mineral oil under different parametric condition was assessed.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on micro ED milling of inconel alloy with SiC nano powder mixed Pongamia BD at different parametric condition

K V

2023

Surf. Topogr.: Metrol. Prop.

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µED-milling is an excellent micro machining process for machining of complex micro structures on conducting materials. In this paper, the feasibility of SiC nano powder mixed Pongamia BD as a dielectric medium while µED-milling of Inconel 718 alloy at different parametric settings namely capacitance (10 nf, 100 nf, 400 nf), powder concentration (0 g/L,0.1 g/L ,0.3g/L) and voltage (120v, 130v, 140v) is analysed. Further, the craters dimensions are correlated with the 3D roughness parameters (Spk, Sk and Svk) in this investigation. Lower settings of capacitance (10nF) offered a maximum MRR (601767.1µm3/s) compared to intermediate (398080.62 µm3/s) and higher (273498.29 µm3/s ) settings of capacitance. MRR is increased around 1.3 times with Pongamia BD compared to SiC nano powder mixed Pongamia BD at considered parametric settings. Crater diameter is decreased by 24.1% with SiC nano powder mixed Pongamia BD due to lesser amount heat transfer to workpiece. Droplet angle of machined surface with SiC nano powder mixed Pongamia BD is 20% higher than Pongamia BD at considered parametric settings. Capacitance and voltage have the significant influence on crater diameter and roughness. Maximum MRR (1034239.41 µm3/s) is achieved with machining condition (10nF, 120V,0g/L) for considered biodiesels. RLT appears to be higher around 27% with the processed surface of SiC nano powder mixed Pongamia BD as compared to Pongamia BD due to reaction of powder particles with work material. 3D roughness parameters (Spk, Sk and Svk) were greatly reduced due to inclusion of powder in biodiesels

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Feasibility of Jatropha and Rice bran vegetable oils as sustainable EDM dielectrics

Cited by 10 publications

References 49 publications

Comparative performance investigation and sustainability assessment in electrical discharge machining of SS316 using different dielectrics

Comparative performance investigation and sustainability assessment in electrical discharge machining of SS316 using different dielectrics

Effect of graphene dispersed coconut biodiesel on the Micro ED milling characteristics of Inconel 718 alloy

Experimental investigation on micro ED milling of inconel alloy with SiC nano powder mixed Pongamia BD at different parametric condition

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