Thermal and Fluid Field Simulation of Single Pulse Discharge in Dry EDM

Wang, Tong; Jiang, Zhe; Zhang, Y. Q.; Li, Y. L.; Wen, X. R.

doi:10.1016/j.procir.2013.03.032

Cited by 18 publications

(15 citation statements)

References 3 publications

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“…The wire-work piece sticking, discrete sparks, insufficient heat energy, and unstable cutting problems are significant problems observed during the dry WEDM process. The surface roughness of the dry WEDM is higher than the near-dry WEDM process due to the above-mentioned problems [53]. However, SR of dry WEDM is better than conventional WEDM due to the small depth of crater caused by air [53].…”

Section: Preliminary Experiments Comparative Analysismentioning

confidence: 99%

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Experimental Investigation and Multi-Objective Optimization of Cryogenically Cooled Near-Dry Wire-Cut EDM Using TOPSIS Technique

Boopathi¹,

Myilsamy²,

Sukkasamy³

2021

Preprint

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In this research, the mixing of compressed air with the minimum quantity of water is used as a dielectric medium and the cryogenically cooled molybdenum wire is used as a tool in wire-cut electrical discharge machining (WEDM) to encourage the eco-friendly production, called cryogenically cooled near-dry WEDM process. The nitrogen gas-cooled wire tool is utilized to cut the Inconel 718 alloy workpiece to prevent wire breakage and maintain enough electrical conductivity. The preliminary experiments were conducted to compare wet, dry, near-dry, and cryogenically cooled near-dry WEDM processes. It was revealed that cryogenic cooled near-dry WEDM is better performance than dry, near-dry WEDM except for the wet process. The systematic experiments of eco-friendly cryogenically cooled near-dry WEDM have been conducted to analyse the effect of input factors like spark current, pulse-width, pulse-interval, and mixing water flow rate on material removal rate (MRR) and surface roughness (SR) using Box–Behnken method. The fitted models and response surface graphs were developed to analyse the influences of input factors on each response parameter. It was concluded that MRR and SR of cryogenically cooled near-dry WEDM are increased by maximizing spark current, pulse-width, and flow rate, conversely, both responses were decreased by increasing pulse-interval. The technique for order of preference by similarity to ideal solution (TOPSIS) technique has been applied to predict the best combination of input factors for satisfying the optimal values of both responses.

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Section: Preliminary Experiments Comparative Analysismentioning

confidence: 99%

“…The surface roughness of the dry WEDM is higher than the near-dry WEDM process due to the above-mentioned problems [53]. However, SR of dry WEDM is better than conventional WEDM due to the small depth of crater caused by air [53].…”

Section: Preliminary Experiments Comparative Analysismentioning

confidence: 99%

Experimental Investigation and Multi-Objective Optimization of Cryogenically Cooled Near-Dry Wire-Cut EDM Using TOPSIS Technique

Boopathi¹,

Myilsamy²,

Sukkasamy³

2021

Preprint

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“…Characteristics for a rotary EDM model were also analyzed [24]. In addition, temperature and fluid distribution studies of the EDM gap and local area were performed [25,26].…”

Section: Electro-discharge Machining (Edm)mentioning

confidence: 99%

A review of magnetic-assisted machining processes

Peruri

Chaganti

2019

J Braz. Soc. Mech. Sci. Eng.

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There has been an increasing interest in the penetration of magnetic field-assisted machining processes in the industries. Due to the ease of contactless forces, magnetic fields have proved extremely versatile and relatively low cost when considering the potential increase in productivity of existing machining processes that it can provide. In this overview, we review the recent achievements and developments in magnetic field-assisted machining processes and their applications. A wide variety of machining domains are examined including electro-discharge machining (EDM), micro-EDM, electrochemical machining, magnetic-assisted machining and many more. The advantages and limitations of each implementation and potential future research pathways are also discussed.

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“…Dry Wire Electrical Discharge Machining (WEDM) is a recently created innovation that utilized gasses as dielectric and in favor of ecological insurance. Dry finishing of WEDM offers better straightness, lower surface roughness and shorter gape length [46]. Fig.1 shows the proportion of research studies made in Dry EDM.It has been observed that the dry EDM can be applied for EDM, UEDM and WEDM.…”

Section: IVmentioning

confidence: 99%

A Review on Progress in Electrical Discharge Machining and Theoretical Models

Prasanna¹

2017

IJRASET

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Electrical release machining (EDM) is one of the most non-conventional machining forms. EDM process depends on the thermoelectric vitality between the work piece and a cathode. A pulse discharge to happen in a little hole between the work piece and the cathode and expels the undesirable material from the parent metal through liquefying and vaporizing. The electrode and the work piece must have electrical conductivity to generate the spark. There are different sorts of items which can be delivered by EDM such as dies and moulds. The Auto motive industry, Aerospace parts and surgical components are manufactured by EDM process. This paper focuses on dry EDM machining, EDM with powder additives, EDM in water and advanced technique to predict the EDM performance.

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Thermal and Fluid Field Simulation of Single Pulse Discharge in Dry EDM

Cited by 18 publications

References 3 publications

Experimental Investigation and Multi-Objective Optimization of Cryogenically Cooled Near-Dry Wire-Cut EDM Using TOPSIS Technique

Experimental Investigation and Multi-Objective Optimization of Cryogenically Cooled Near-Dry Wire-Cut EDM Using TOPSIS Technique

A review of magnetic-assisted machining processes

A Review on Progress in Electrical Discharge Machining and Theoretical Models

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