Taguchi analysis on machinability of Inconel 600 using Copper, Brass, and Copper tungsten electrodes in EDM

Pavan, C.; Sateesh, N.; Subbiah, Ram

doi:10.1016/j.matpr.2020.02.113

Cited by 32 publications

(20 citation statements)

References 5 publications

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“…In Figure 7, the high thermal conductivity and thermal conductivity of the electrode led to an increase in the metal removal rate at high arc times in the use of copper electrodes. The electrode wear rate increased and the material removal rate decreased compared to copper electrodes in the use of brass electrodes since the mechanical and physical properties of the brass electrode are lower than that of copper (Pavan et al, 2021). pulse on time.…”

Section: Resultsmentioning

confidence: 99%

“…Electro discharge machining (EDM) is a method of removing metal from the electrically conductive workpiece by thermal effects by using copper, brass or similar electrode material in a dielectric environment (Dhanabalan et al, 2015;Payal et al, 2008;Pavan and Sateesh, 2021). In this method, the workpiece melts and evaporates due to the high temperature created by the rapid electrical discharges that occur between the electrode (cathode) and the workpiece (anode).…”

Section: Introductionmentioning

confidence: 99%

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Bakır ve pirinç elektrot ile EDM yönteminde soğuk iş takım çeliği işlemede MRR, EWR ve KERF Analizi

Ceritbinmez¹,

GÖKKAYA

Kanca

2023

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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In this study, holes were drilled on the Sleipner cold work tool steel with a hardness of 60-62 HRC by copper and brass electrodes using three different current values (50, 25, 12.5 A), pulse on times (3, 6, 9 μs) and pulse off times (4, 6, 8 μs) parameters in the EDM method; the effects of these working parameters on machining times, material removal rate (MRR), electrode wear rate (EWR), the hole inlet-outlet diameters of the machined parts, the kerf on workpiece and electrode were analyzed. As a result of the analyzes made, in the use of copper electrodes, the MRR increased by 311.25% on average compared to the use of brass electrodes, while the EWR and machining time decreased by 42.01% and 38.46%, respectively. The increase in sparking and thermal effects between the workpiece and the electrode resulted in an increase in the MRR and a decrease in the machining time. In the use of copper and brass electrodes with different processing parameters, the inlet diameters of the drilled holes were found to be larger than the outlet diameters as well as an irregular kerf formation was observed due to debris evacuation due to worn electrodes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bakır ve pirinç elektrot ile EDM yönteminde soğuk iş takım çeliği işlemede MRR, EWR ve KERF Analizi

Ceritbinmez¹,

GÖKKAYA

Kanca

2023

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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“…[19]. Literatür çalışmaları göz önüne alındığında EEİ parametrelerinin yanı sıra işlem sırasında kullanılan dielektrik sıvı ve basıncının, elektrot malzemesinin mekanik ve kimyasal özelliklerinin de elektrot aşınmasına etki ettiği görülmektedir [9,16,20]. Elektro erozyon yöntemi termal bir talaş kaldırma yöntemidir [21].…”

Section: Sonuç Ve Tartişma (Conclusion and Discussion)unclassified

The Effects of Cutting Parameters on the Kerf and Surface Roughness on the Electrode in Electro Erosion Process

Ceritbinmez¹,

Kanca

2021

Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji

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During the electro erosion process, which is a thermal chip removal method, heating, melting and evaporation occur between the electrode material and the workpiece due to sparking and thermal effects, in this case both the workpiece and the electrode material are worn. In this study, the kerf angle and the electrode wear rate were analyzed by taking into account the size changes in the erosion areas of the copper electrode, which were eroded as a result of different processing parameters. a) b) Figure A. Kerf Angle Calculation (a) Longitudinal kerf measurement, b) Transverse kerf measurement)Purpose: In this study, electrode wear caused by machining from cold work tool steel with heat treated 60-62 HRC hardness was investigated by using electro erosion method and Cupro MAX CuCrZr electrode.In addition, it is aimed to determine the effects of processing parameters on the surface roughness of each electrode and electrode wear rates by going beyond the usual measurements.Theory and Methods: In this study,erosion process was performed using three different current values (6.25, 12.5, 25 A), three different pulse on times (3, 6, 9 µs) and pulse off times (4, 6, 8 µs), respectively, and the electrode wear rate of these processing parameters, the effects on kerf angle and surface roughness were analyzed by macro and analytical measurements.Surface roughness, kerf measurements and macro images of the electrodes were analyzed using Mitutoyo SJ200surface roughness tester, 0.001 mm precision mitutoyo micrometer and Nikon SMZ 745T microscope, respectively. ResultsThe results have shown that with increasing current, machining time decreased due to increased sparking between workpiece and electrode, but the average surface roughness, kerf angle and wear rate of the electrode increased.Theanalytical measurements and experimental results are presented and compared in Section 3. Conclusion:According to the analytical calculations and macro analysis results obtained as a result of experimental studies, it has been determined that as the pulse on time increases, the electrode wear rate decreases. The reduction in electrode wear resulted from the increase in the strength of the electrode due to the protective layer formed by the adhesion of the dielectric fluid and carbon particles released from the workpiece to the electrode surface. Highlights• Copper erosion.• EDM process.• Kerf measurement.

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“…The chemical composition of the SS316L metal powder is shown in Table 1 . Copper is used as an electrode material with high electro- and thermo-physical properties, which make copper an ideal material for EDM processes [ 20 ]. A 6 mm copper electrode is employed for machining up to a depth of 2 mm.…”

Section: Materials and Methodologymentioning

confidence: 99%

Multi-Objective Optimization of the Process Parameters in Electric Discharge Machining of 316L Porous Stainless Steel Using Metaheuristic Techniques

et al. 2022

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Electric discharge machining is an essential modern manufacturing process employed to machine porous sintered metals. The sintered 316L porous stainless steel (PSS) components are widely used in diverse engineering domains, as interconnected pores are present. The PSS material has excellent lightweight and damping properties and superior mechanical and metallurgical properties. However, conventional machining techniques are not suitable for porous metals machining. Such techniques tend to block the micro-pores, resulting in a decrease in porous materials’ breathability. Thus, the EDM process is an effective technique for porous metal machining. The input process parameters selected in this study are peak current (Ip), pulse on time (Ton), voltage (V), flushing pressure (fp), and porosity. The response parameters selected are material removal rate (MRR) and tool wear rate (TWR). The present work aims to obtain optimum machining process parameters in the EDM of porous sintered SS316L using two meta-heuristic optimization techniques, i.e., Teaching Learning-Based Optimization (TLBO) and Particle Swarm Optimization (PSO) algorithms, to maximize the MRR and minimize the TWR values. In the case of PSS having a 12.60% porosity value, PSO and TLBO algorithms give same optimum machining parameters. However, for PSS having an 18.85% porosity value, the PSO algorithm improves by about 5.25% in MRR and by 5.63% in TWR over the TLBO. In the case of PSS having a 31.11% porosity value, the PSO algorithm improves about 3.73% in MRR and 6.46% in TWR over the TLBO. The PSO algorithm is found to be consistent and to converge more quickly, taking minimal computational time and effort compared to the TLBO algorithm. The present study’s findings contribute valuable information in regulating the EDM performance in machining porous SS316L.

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Taguchi analysis on machinability of Inconel 600 using Copper, Brass, and Copper tungsten electrodes in EDM

Cited by 32 publications

References 5 publications

Bakır ve pirinç elektrot ile EDM yönteminde soğuk iş takım çeliği işlemede MRR, EWR ve KERF Analizi

Bakır ve pirinç elektrot ile EDM yönteminde soğuk iş takım çeliği işlemede MRR, EWR ve KERF Analizi

The Effects of Cutting Parameters on the Kerf and Surface Roughness on the Electrode in Electro Erosion Process

Multi-Objective Optimization of the Process Parameters in Electric Discharge Machining of 316L Porous Stainless Steel Using Metaheuristic Techniques

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