2013
DOI: 10.1080/10426914.2013.763955
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Machining Performance of Cryogenically Treated Electrodes in Microelectric Discharge Machining: A Comparative Experimental Study

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Cited by 79 publications
(44 citation statements)
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“…From the experimental study, it was observed that, there is significant reduction in TWR. The following interesting results were obtained due to cryogenic treatment: TWR decreased by 58% for tungsten, 51% for brass, and 35% for copper electrodes; MRR decreased by 55% for tungsten, 39% for brass, and 34% for copper electrodes; Electrical resistance decreased by 17.95% for tungsten, 10.4% for copper, and 4.5% for brass electrodes; Micro hardness values increased by 120% for tungsten, 93% for brass, and 17% for copper electrodes; The average crystallite size is reduced by 29% for brass, 12% for copper, and 5% for tungsten electrodes [7]. Y. Yildiz et.al in this study, beryllium-copper alloy was subjected to around -150° F for cold treatment and to around -300° F for cryogenic treatment and the effects of these cold and cryogenic treatments on the machinability of beryllium-copper workpieces in electro discharge machining have been investigated.…”
Section: Review On Cryogenic Treatmentmentioning
confidence: 93%
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“…From the experimental study, it was observed that, there is significant reduction in TWR. The following interesting results were obtained due to cryogenic treatment: TWR decreased by 58% for tungsten, 51% for brass, and 35% for copper electrodes; MRR decreased by 55% for tungsten, 39% for brass, and 34% for copper electrodes; Electrical resistance decreased by 17.95% for tungsten, 10.4% for copper, and 4.5% for brass electrodes; Micro hardness values increased by 120% for tungsten, 93% for brass, and 17% for copper electrodes; The average crystallite size is reduced by 29% for brass, 12% for copper, and 5% for tungsten electrodes [7]. Y. Yildiz et.al in this study, beryllium-copper alloy was subjected to around -150° F for cold treatment and to around -300° F for cryogenic treatment and the effects of these cold and cryogenic treatments on the machinability of beryllium-copper workpieces in electro discharge machining have been investigated.…”
Section: Review On Cryogenic Treatmentmentioning
confidence: 93%
“…Owing to the complex nature of the process involving the physics of series of spark discharges, it is difficult to observe the process experimentally and necessitates suitable parametric setting to improve the machining efficiency. Thus, low machining efficiency, poor surface finish and dimensional accuracy of the machined surface are the major concerns for tool engineers working on EDM In recent times, cryogenic treatment has been successfully applied to non-convention machining processes resulting in fruitful application in EDM and wire EDM through treatment of electrodes and wires which are used for machining of toughened and low conductive materials [7]. Cryogenic treatment brings some remarkable improvements to the mechanical properties like increasing the wear resistance, thermal conductivity, hardness and refining the microstructure of the material [10].…”
Section: Introductionmentioning
confidence: 99%
“…Besides, thermal conductivity, one of the most important parameters to increase the efficiency of an EDM process, increases with increasing EC according to Wiedmann-Franz-Lorenz law. An increase in thermal conductivity leads to lesser local temperature and thus, lesser tool wear [19,20]. Therefore, when considering the effect of CT on EC of CuCrZr electrode, it can be said that CT decreased the wear rate of CuCrZr electrodes due to their increasing electrical and thermal conductivity.…”
Section: Measurements Of Performance Characteristicsmentioning
confidence: 99%
“…Investigation of machining performance of cryogenically treated electrodes in electric discharge machining was carried out. From the study, it was observed that there is a significant reduction in tool wear rate of cryogenic treated tool electrode [3][4]. Yildiz et al investigated the effect of cold and cryogenic treatments on the machinability of Berylliumcopper alloy.…”
Section: Introductionmentioning
confidence: 99%