INVESTIGATING THE EFFECTS OF EDM PARAMETERS ON SURFACE INTEGRITY, MRR AND TWR IN MACHINING OF Ti–6Al–4V

Jabbaripour, Behzad; Sadeghi, M. H.; Faridvand, Sh.; Shabgard, Mohammad Reza

doi:10.1080/10910344.2012.698971

Cited by 134 publications

(78 citation statements)

References 14 publications

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“…Soft abrasive cleaning followed by air pressured cleaning was performed on the circular profile before immersion in dielectric for free of unwanted surface particles. [3]. Divided profile and polished surface High-Quality brass electrode was necessary figure 2 due to depth appearance corrosion of tool electrode and workpiece machined surface.…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…Parameters that are likely to affect SR and also cause surface changes on the recast layers were identified using a study from the reported results in the literature [1,4,3]. Three repetitions for each surface roughness measurement were conducted.…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…by Namicon Company, with analysing 0.8 µm length of surface each. The surface obtained after each EDM process was photo taken using metallurgical microscope IMM 901 by Metkon Company with the 200x amplification factor shown in figures [3][4][5].…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…Investigate the effects of cooling time due to pulse off time as prime factor, and peak current intensity as a second factor, of fine machining without using other cooling options, like cryogenically treatment before or in time of processing [1] which provided smooth surface appearance, the cold effect is provided only from the speed and direction of dielectric fluid in the gap area. Regardless of pulse on time which is one of the main factors in MRR (Material Remove Rate), the surface roughness quality is based on efficiency of recasting time of layers [3].…”

Section: Introductionmentioning

confidence: 99%

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Efficient dielectric fluid approach in electrodischarge finish machining on the material surface roughness of titanium alloy Ti-621/0.8

Mihai

Brabie

2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This study was developed to reveal the correlation between current intensity and pulse off time with surface roughness of Ti-621/0.8 in fine EDM machining, in a unique manner of dielectric fluid approach. Depth of cut was taken in consideration to be not as high 1 µm due to the fact that good results were taken for more less heights before. In the case of Ti alloy (Ti-621/0.8) bar, EDM machining with low parameters (limited 110 V) is a delicate process, in which reaching SR under 1 µm is a challenge. Cooper and Graphite electrodes were used, die sinker oil dielectric from machine manufacture was used, without thermal modification to workpiece or electrode, just active dielectric compensatory fluid pumping solution with 0.5 MPa. IntroductionThe machining of Ti-621/0.8 with conventional machining processes is very difficult because of high toughness and low thermal conductivity. Investigate the effects of cooling time due to pulse off time as prime factor, and peak current intensity as a second factor, of fine machining without using other cooling options, like cryogenically treatment before or in time of processing [1] which provided smooth surface appearance, the cold effect is provided only from the speed and direction of dielectric fluid in the gap area. Regardless of pulse on time which is one of the main factors in MRR (Material Remove Rate), the surface roughness quality is based on efficiency of recasting time of layers [3]. Controlling the thermal proprieties of the Ti-621/0.8 is capital when we have a process in which cooling is allowed less time than heating up on a regime of finish EDM machining with spark temperatures around melting temperature of Ti alloy.Optimizing input parameters or other means like dielectric approach, is allowing a larger area of applicability in the industry of Ti-621/0.8.The influence of the workpiece after solidifying and before machining conditions, were made just for reducing the unwanted deforming lines in the workpiece profile, reducing thermal modifications [2] due to classical machining of fabrication in the pre-process of EDM.Presented experiments are applicable on the workpiece models that will have a distinct simple geometrical surface to be machined on, and a very good dielectric gap circulation.

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Section: Experimental Conditionsmentioning

confidence: 99%

Section: Experimental Conditionsmentioning

confidence: 99%

Section: Experimental Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Efficient dielectric fluid approach in electrodischarge finish machining on the material surface roughness of titanium alloy Ti-621/0.8

Mihai

Brabie

2015

IOP Conf. Ser.: Mater. Sci. Eng.

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“…In the past, many researchers have attempted to machine different kinds of 'difficult-to-cut' materials using spark machining-based technologies [1][2][3][4][5][6][7][8][9]. The endeavors primarily involved optimization of the processing conditions in macro electrical discharge machining [1,[4][5][6][7], micro-electrical discharge machining [2], green electrical discharge machining [3] and other hybrid processes using the spark machining principles [8,9]. A few researchers [10][11][12] have focused their attention on using alternate methods for increasing the material removal rate through chemical and mechanical actions using application of powders or surfactants.…”

Section: Introductionmentioning

confidence: 99%

An Influence of Parameters of Micro-electrical Discharge Machining on Wear of Tool Electrode

Puthumana¹

2017

Archive of Mechanical Engineering

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To achieve better precision of features generated using the micro-electrical discharge machining (micro-EDM), there is a necessity to minimize the wear of the tool electrode, because a change in the dimensions of the electrode is reflected directly or indirectly on the feature. This paper presents a novel modeling and analysis approach of the tool wear in micro-EDM using a systematic statistical method exemplifying the influences of capacitance, feed rate and voltage on the tool wear ratio. The association between tool wear ratio and the input factors is comprehended by using main effect plots, interaction effects and regression analysis. A maximum variation of four-fold in the tool wear ratio have been observed which indicated that the tool wear ratio varies significantly over the trials. As the capacitance increases from 1 to 10 nF, the increase in tool wear ratio is by 33%. An increase in voltage as well as capacitance would lead to an increase in the number of charged particles, the number of collisions among them, which further enhances the transfer of the proportion of heat energy to the tool surface. Furthermore, to model the tool wear phenomenon, a regression relationship between tool wear ratio and the process inputs has been developed.

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A Study on Optimization Techniques of Electro Discharge Machining

Biswas

Singh

Mukherjee

2020

Intelligent Manufacturing

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INVESTIGATING THE EFFECTS OF EDM PARAMETERS ON SURFACE INTEGRITY, MRR AND TWR IN MACHINING OF Ti–6Al–4V

Cited by 134 publications

References 14 publications

Efficient dielectric fluid approach in electrodischarge finish machining on the material surface roughness of titanium alloy Ti-621/0.8

Efficient dielectric fluid approach in electrodischarge finish machining on the material surface roughness of titanium alloy Ti-621/0.8

An Influence of Parameters of Micro-electrical Discharge Machining on Wear of Tool Electrode

A Study on Optimization Techniques of Electro Discharge Machining

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