Investigation of near dry EDM compared with wet and dry EDM processes

Gholipoor, Ahad; Baseri, Hamid; Shabgard, Mohammad Reza

doi:10.1007/s12206-015-0441-2

Cited by 49 publications

(21 citation statements)

References 11 publications

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“…After each run, all the workpieces and electrodes were cleaned with acetone to remove dielectric remains. For the calculations of the MRR and EWR, the following equations were employed [30]:…”

Section: Methodsmentioning

confidence: 99%

Experimental Characterization of Electrical Discharge Machining of Aluminum 6061 T6 Alloy using Different Dielectrics

et al. 2019

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Electrical discharge machining is a non-traditional machining method broadly employed in industries for machining of parts that have typical profiles and require great accuracy. This paper investigates the effects of electrical parameters: pulse-on-time and current on three performance measures (material removal rate, microstructures and electrode wear rate), using distilled water and kerosene as dielectrics. A comparison between dielectrics for the machining of aluminum 6061 T6 alloy material in terms of performance measures was performed. Aluminum 6061 T6 alloy material was selected, because of its growing use in the automotive and aerospace industrial sectors. The experimental sequence was designed using Taguchi technique of L 9 orthogonal array by changing three levels of pulse-on-time and current, and test runs were performed separately for each dielectric. The results obtained show that greater electrode wear rate (EWR) and higher material removal rate (MRR) were achieved with distilled water when compared with kerosene. These greater EWR and MRR responses can be attributed to the early breakage of the weak oxide and carbide layers formed on the tool and alloy material surfaces, respectively. The innovative contributions of this study include, but are not limited to, the possibility of machining of aluminum 6061 T6 alloy with graphite electrode to enhance machinability and fast cutting rate employing two different dielectrics.

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Section: Methodsmentioning

confidence: 99%

Experimental Characterization of Electrical Discharge Machining of Aluminum 6061 T6 Alloy using Different Dielectrics

et al. 2019

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“…Lin et al (2008) studied the machining parameters of magnetic assisted EDM and found that it helped to increase the effective discharge forms and produced even surface with increased stability of the process [35,57,54] and then again next yearY.C. Lin et al (2009) optimized the process parameters for machining of SKD 61 using Grey relation and Taguchi approach and found that topography of machined surface improved when machined using magnetic assistance [24,54].…”

Section: Magnetic Field Assisted Edmmentioning

confidence: 99%

“…Tao et al (2008) carried out EDM in a medium of kerosene-nitrogen and achieved a mirror like surface finish and also carried out a comparative investigation of dry and near dry electric discharge milling and suggested near dry EDM is benign for finishing process [34]. Ahad Gholipoor (2015) carried out comparative study of wet, dry and near dry EDM of SPK steel and suggested wet EDM for rough machining and near dry EDM for finishing [57]. Arvind Pattabhiraman et al (2015) studied the near dry EDM using atomized spray of EDM oil and suggested that in spray EDM discharge energy increased by 37% and volume of material removed increased by 78% [60].…”

Section: Binary Phase Dielectric/ Near Dry Edmmentioning

confidence: 99%

Brief Chronological Study of the Evolution of Electrical Discharge Machining

2017

IJSR

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Un-conventional or non-traditional machining methods generally create a phantasm in mind that these are very new. In reality these methods are named so because of the process mechanism in which no shear force is used directly neither there is any contact between tool and workpiece. This does not insinuate that these processes are new because 1694 saw the dawn of EDM when Sir Robert Boyle described the phenomena of electric discharges, 1952 saw the birth of electron beam technology andin the year of 1957 and Gordon Gould designed the first laser device. All these non-traditional processes have developed rapidly in last few decades and are now the state of the art of the present manufacturing technology. Among these EDM has accrued a lot because of its advantages over other non-traditional processes. This accruement is result of various unprecedented ideas those changed the countenance of EDM and made it more efficient and economic process among the non-traditional processes. This paper presents the literature survey to throw light on all those ideas those lead to the current state of the art of EDM.

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“…Modern dry EDM includes liquid and gas as the dual phase dielectric fluid for machining. It increases the MRR and reduces a gap distance during machining [28].The drilling application of dry and near dry EDM process is carried out on SPK steel [29].…”

Section: Dry Edmmentioning

confidence: 99%