Assessment of the impacts of bio-dielectrics on the textural features and recast-layers of EDM-surfaces

Das, Shirsendu; Paul, Swarup; Doloi, B.

doi:10.1080/10426914.2020.1832678

Cited by 23 publications

(5 citation statements)

References 19 publications

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“…According to Arfaoui et al, [33] the white layer's thickness is determined by the cutting edge's chamfer size, radius, heat conductivity, and material hardness. According to recent research by Das et al [34], several investigations have looked into spark EDM's effect on surface quality by using a copper composite electrode. Studies have been conducted on EDMed in terms of surface roughness, microhardness, microstructure, and elemental composition.…”

Section: Introductionmentioning

confidence: 99%

Die-sinking and rotary EDM surface and subsurface analysis of MoSi₂-SiC ceramic composites

Selvarajan,

Rajavel,

Yunus

et al. 2023

Materials Science and Technology

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Rotating EDM and die sinking EDM were used to compare the machinability of MoSi2-SiC composites. Surface flaws such as micro cracks, un melted spherical particles, pores, a recast layer and craters following EDM can be attributed to the high hardness and poor toughness of the MoSi2-SiC. Die sinking EDM and rotary EDM, as shown by a comparison of recast layer thicknesses, produce the most uniformly thin white layers, at 92 and 30 µm respectively. The study found that the area fraction yield for porosity ranged from 8.18% to 12.922% when using rotary EDM, but only from 2.33% to 8.10% when using die-sinking EDM. According to the EDAX, the spongy exterior of a composite is the result of a lot of gas being produced. Although the rotational movement of the tool sweeps the resolidified particles away, Rotary EDM resulted in a thinner and less uniform recast layer while still producing good surfaces.

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Section: Introductionmentioning

confidence: 99%

Die-sinking and rotary EDM surface and subsurface analysis of MoSi₂-SiC ceramic composites

Selvarajan,

Rajavel,

Yunus

et al. 2023

Materials Science and Technology

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“…Influence of flushing pressure of biooil and mineral oil on response measures at different input conditions was studied. Very thin recast layer was seen on machined surface with bio-oil used as dielectric medium due to less deposition of debris particles on work surface [24]. Behavior of polanga oil on output measures at different input 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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“…They had also used cryogenic treated of electrode and proposed that under such experiment, TWR was reduced. Das et al 24 studied the effect of kerosene and transesterified bio-oil on EDM performance of titanium alloy with respect to recast layer thickness, surface integrity, crater overlapping and debris-agglomeration of the machined surface. Authors came to know that the recast layer’s thickness was thinner when bio-dielectric fluids were used.…”

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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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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Assessment of the impacts of bio-dielectrics on the textural features and recast-layers of EDM-surfaces

Cited by 23 publications

References 19 publications

Die-sinking and rotary EDM surface and subsurface analysis of MoSi₂-SiC ceramic composites

Die-sinking and rotary EDM surface and subsurface analysis of MoSi₂-SiC ceramic composites

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

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

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Assessment of the impacts of bio-dielectrics on the textural features and recast-layers of EDM-surfaces

Cited by 23 publications

References 19 publications

Die-sinking and rotary EDM surface and subsurface analysis of MoSi2-SiC ceramic composites

Die-sinking and rotary EDM surface and subsurface analysis of MoSi2-SiC ceramic composites

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

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

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Product

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Die-sinking and rotary EDM surface and subsurface analysis of MoSi₂-SiC ceramic composites

Die-sinking and rotary EDM surface and subsurface analysis of MoSi₂-SiC ceramic composites