Turning by electrical discharge machining: A review

Gohil, Vikas; Puri, Y. M.

doi:10.1177/0954405415590560

Cited by 43 publications

(14 citation statements)

References 93 publications

(115 reference statements)

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“…The process variants in die-sinking EDM can be fine-tuned to generate free-form cylindrical geometries on difficult-to-cut materials at both macro- and micro levels. Gohil and Puri 89,90 carried out work in the area of ED turning for the improvement of MRR, surface integrity and roundness. In this review, various techniques reported by EDM researchers on turning have been categorized in different EDM variants.…”

Section: Current Development Trend In Micro-edmmentioning

confidence: 99%

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Micro-electrical discharge machining of difficult-to-machine materials: A review

Prakash

Kumar

Singh

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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Electrical discharge machining has emerged as one of the most accepted non-traditional machining methods that have the capability of attaining complex shapes and better feature size in difficult-to-machine materials. In this article, an advanced review of conventional electrical discharge machining and micro–electrical discharge machining of difficult-to-machine materials, such as nickel and its alloys, titanium alloys, stainless steel (SUS 304) and advanced ceramics, has been presented. The review begins with an introduction to the conventional electrical discharge machining and micro–electrical discharge machining processes, followed by classifications and a brief discussion on different aspects of micro-manufacturing methods. The current research trends and developments, research gaps and challenges of the conventional electrical discharge machining and micro–electrical discharge machining of nickel and its alloys, titanium alloys (Ti6Al4V), stainless steel and advanced ceramics are also discussed in depth. A brief note on future research trends, based on the available literature, has been included in the last section.

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Section: Current Development Trend In Micro-edmmentioning

confidence: 99%

“…Different techniques adopted for EDM turning process. 89 Research gaps and challenges in the micro-EDM of difficult-to-machine materials (Ti6Al4V, nickel sheet and stainless steel)…”

Section: Current Development Trend In Micro-edmmentioning

confidence: 99%

Micro-electrical discharge machining of difficult-to-machine materials: A review

Prakash

Kumar

Singh

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…24 Based on the type of the response characteristics, Taguchi categorized response characteristics into three special types, such as the-higher-the-better (HB), the-nominal-the-better (NB) and the-lower-the-better (LB). In this study, HB is considered to maximize the MRR and LB is considered to minimize the surface roughness, and for such class, S/N ratio is expressed as in equations (5) and (6), respectively (HB)h = À 10 log 1 n…”

Section: S/n Ratio Analysismentioning

confidence: 99%

“…4 One of the main industrial applications of die sinking EDM machine is especially in turning aerospace honey-comb seals where the internal and external seals are machined to a bur-free finish with the internal and external diameters from 300 to 1400 mm. 5 Example of a machined part using EDT method is shown in Figure 3.…”

Section: Introductionmentioning

confidence: 99%

Statistical analysis of material removal rate and surface roughness in electrical discharge turning of titanium alloy (Ti-6Al-4V)

Gohil

Puri

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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Electrical discharge turning is a unique form of electrical discharge machining process, which is being especially developed to generate cylindrical forms and helical profiles on the difficult-to-machine materials at both macro and micro levels. A precise submerged rotating spindle as a work holding system was designed and added to a conventional electrical discharge machine to rotate the workpiece. A conductive preshaped strip of copper as a forming tool is fed (reciprocate) continuously against the rotating workpiece; thus, mirror image of the tool is formed on the circumference of the workpiece. The machining performance of electrical discharge turning process is defined and influenced by its machining parameters, which directly affects the quality of the machined component. This study presents an investigation on the effects of the machining parameters, namely, pulse-on time, peak current, gap voltage, spindle speed and flushing pressure, on the material removal rate (MRR) and surface roughness (Ra) in electrical discharge turning of titanium alloy Ti-6Al-4V. This has been done by means of Taguchi's design of experiment technique. Analysis of variance as well as regression analysis is performed on the experimental data. The signal-to-noise ratio analysis is employed to find the optimal condition. The experimental results indicate that peak current, gap voltage and pulse-on time are the most significant influencing parameters that contribute more than 90% to material removal rate. In the context of Ra, peak current and pulse-on time come up with more than 82% of contribution. Finally, the obtained predicted optimal results were verified experimentally. It was shown that the error values are all less than 6%, confirming the feasibility and effectiveness of the adopted approach.

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“…2 shows a precise rotary spindle setup which was added to the conventional EDM machine to give rotary motion to the workpiece. A die-sinking EDM machine is widely used for turning aerospace honey-comb seals where internal and external seals are machined to a burr-free finish with internal or external diameters from 300mm-1400mm [3][4][5][6]. An example of a machined part produced by the EDT method is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Surface Roughness in Electrical Discharge Turning of Ti-6Al-4V Alloy

Gohil

Puri

2016

T FAMENA

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SummaryThis study presents a novel EDM turning process specially designed and developed to generate precise cylindrical forms on hard and difficult-to-machine materials. For this purpose, a specially designed turning spindle is used. The spindle was mounted on a conventional die-sinking EDM machine to rotate the workpiece. Axially symmetric parts can be manufactured by feeding the shaped tool into the rotating workpiece. In this way an axisymmetric workpiece can be made with small tools at both macro and micro levels. Effects of machining parameters, such as the current, pulse-on time, rotational speed, flushing pressure, and duty factor, on the surface roughness of Ti-6Al-4V alloy in electrical discharge turning were investigated. Taguchi's design of experiment technique was used. Analysis of variance and regression analysis were performed on experimental data. The signal-to-noise ratio analysis was employed to find the optimal condition.

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Turning by electrical discharge machining: A review

Cited by 43 publications

References 93 publications

Micro-electrical discharge machining of difficult-to-machine materials: A review

Micro-electrical discharge machining of difficult-to-machine materials: A review

Statistical analysis of material removal rate and surface roughness in electrical discharge turning of titanium alloy (Ti-6Al-4V)

Experimental Investigation on Surface Roughness in Electrical Discharge Turning of Ti-6Al-4V Alloy

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