Research Developments in Additives Mixed Electrical Discharge Machining (AEDM): A State of Art Review

Kumar, Anil; Maheshwari, Sachin; Sharma, Chander Shekhar; Beri, Naveen

doi:10.1080/10426914.2010.502954

Cited by 105 publications

(55 citation statements)

References 55 publications

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“…The authors of the current study performed a detailed literature survey on EDM of DTM materials [7] as well as powder-mixed electrical discharge machining (PM-EDM) investigation for WC [8], and determined that PM-EDM process is significantly better than the conventional EDM process, which is also supported in literature [9][10][11]. The PM-EDM process helps to improve the machining and surface properties of materials.…”

Section: Introductionmentioning

confidence: 82%

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Singh

Sharma

2016

Front. Mech. Eng.

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Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.

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Section: Introductionmentioning

confidence: 82%

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Singh

Sharma

2016

Front. Mech. Eng.

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“…Electric discharge of metal and composites, ceramics, glass, and semiconductors have been reported by several authors [22][23][24]. Even elements of powder samples also can be identified by making as pallets of the powder by compression and sintering process and use as an electrode [25].…”

Section: Applications Of Electric Dischargementioning

confidence: 99%

Microelectric Discharge Plasma: Characterization and Applications

Subbu

Dhamodaran

Ramkumar

2012

Materials and Manufacturing Processes

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“…With the results obtained after the experimental runs, the preference value for each experimental combination can be achieved using equations (4)(5)(6)(7)(8)(9)(10). The preference value for each alternative can be calculated considering the comparative nearness to the best solution which is computed as the "ratio of negative ideal separation measure divided by the sum of negative ideal separation measure and the positive ideal separation measure" using equation (11).…”

Section: Topsismentioning

confidence: 99%

Multi-attribute optimization of machining process parameters in powder mixed electro-discharge machining using TOPSIS and grey relational analysis

Tripathy

2016

Engineering Science and Technology, an International Journal

134

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Available online Keywords:Powder mixed electric discharge machining H-11 die steel Taguchi Multi-attribute optimization Grey relational analysis TOPSIS A B S T R A C T Powder Mixed Electro-Discharge Machining (PMEDM) is a hybrid machining process where a conductive powder is mixed to the dielectric fluid to facilitate effective machining of advanced material. In the present work application of Taguchi method in combination with Technique for order of preference by similarity to ideal solution (TOPSIS) and Grey Relational Analysis (GRA) have been adopted to evaluate the effectiveness of optimizing multiple performance characteristics for PMEDM of H-11 die steel using copper electrode. The effect of process variables such as powder concentration (Cp), peak current (Ip), pulse on time (Ton), duty cycle (DC) and gap voltage (Vg) on response parameters such as Material Removal Rate (MRR), Tool Wear Rate (TWR), Electrode Wear Ratio (EWR) and Surface Roughness (SR) have been investigated using chromium powder mixed to the dielectric fluid. Analysis of variance (ANOVA) and F-test were performed to determine the significant parameters at a 95% confidence interval. Predicted results have been verified by confirmatory tests which show an improvement of 0.161689 and 0.2593 in the preference values using TOPSIS and GRA respectively. The recommended settings of process parameters is found to be Cp = 6 g/l, Ip = 6Amp, Ton = 100 μs, DC = 90% and Vg = 50 V from TOPSIS and Cp = 6 g/l, Ip = 3Amp, Ton = 150 μs, DC = 70% and Vg = 30 V from GRA. The microstructure analysis has been done for the optimal sample using Scanning Electron Microscope (SEM).

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Research Developments in Additives Mixed Electrical Discharge Machining (AEDM): A State of Art Review

Cited by 105 publications

References 55 publications

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Microelectric Discharge Plasma: Characterization and Applications

Multi-attribute optimization of machining process parameters in powder mixed electro-discharge machining using TOPSIS and grey relational analysis

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