Experimental Analysis on Wire Electrical Discharge Machining of Inconel 718 Using Taguchi’s Method

Thejasree, P.; Binoj, J. S.; Krishnamachary, P. C.; Manikandan, N.; Palanisamy, D.

doi:10.1007/978-981-15-4739-3_43

Cited by 17 publications

(4 citation statements)

References 17 publications

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“…(calibration factor 5 was determined empirically) for evaluating the mechanical properties, which takes into account the complex effect of the main components of the alloy. since the dimensional mismatch of the lattice parameters is associated with the degree of concentration solid solution hardening of the γ-and γ′-phases, the efficiency of precipitation hardening of the alloy, the creep rate, and other properties, the Кγ' ratio allows us to associate these properties with multicomponent systems [1][2][3][4][5][6][7][8][9][10].…”

Section: Research Results and Discussionmentioning

confidence: 99%

“…the development of new and optimization of existing alloys for cast parts, namely, the most heavily loaded, such as the working and nozzle blades of a gas turbine engine, is a material science, design and technological task that requires a comprehensive solution [1][2][3][4][5][6]. For modern thermally stressed gas turbine engines, the above-mentioned complex-profile parts are made from multicomponent heat-resistant alloys based on nickel, cobalt and iron by the methods of equiaxed, directional or monocrystalline casting [7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Archives of Metallurgy and Materials

Глотка

Ольшанецкий

2021

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Forecasting the ProPerties oF heat-resistant nickel alloys equalaxial crystallizationAs a result of experimental data processing, the ratio of alloying elements Кγ' was proposed for the first time, which can be used to assess the mechanical properties, taking into account the complex effect of the main alloy components. the regularities of the influence of the composition on the properties of heat-resistant nickel alloys of equiaxial crystallization are established. it is shown that for multicomponent nickel systems it is possible with a high probability to predict a mismatch, which significantly affects the strength characteristics of alloys of this class. A promising and effective direction in solving the problem of predicting the main characteristics of heat-resistant materials based on nickel is shown.

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Section: Research Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Глотка

Ольшанецкий

2021

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“…Ramakrishnan and Karunamoorthy [23] used artificial neural network analysis to find the best parameters and evaluate the effect of each parameter on the quality of the machined surface to cut Inconel 718 material by the WEDM method, reporting that all input parameters used in the study affected the processing quality at different rates. Dabade and Thejasree [24,25] experimented with machining IN718 by WEDM in separate studies considering the variation of process parameters while considering MRR, surface finish, and kerf width by Taguchi technique. They reported that an increase in discharge current increases surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Wire-EDM performance and surface integrity of Inconel 718 with unique microstructural features fabricated by laser powder bed fusion

Gokcekaya,

Günen,

Ceritbinmez

et al. 2024

Int J Adv Manuf Technol

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Inconel 718 alloy is difficult to machine using conventional methods due to its physical properties. Thereby, additive manufacturing (AM) of IN718 components with near-net shapes has been extensively studied. Even though AM processes provide shape and size accuracy, there is still the need for the machining of the AM-processed components to achieve the final shape of a component. Laser powder bed fusion (LPBF) has been successfully utilized to fabricate near-net shape IN718 components; moreover, the microstructure of LPBF-IN718 was unique owing to the AM processing, resulting in differences in grain size, grain boundary characteristics, and grain orientations. Furthermore, these microstructural characteristics are expected to alter the machining performance of IN718. Therefore, this study investigated the wire electro-discharge machining (WEDM) performance of LPBF-718 samples compared to wrought IN718 while focusing on the unique microstructure characteristics of LPBF-IN718 samples (lamella, single-crystal, ploy-crystal). Three different cutting strategies (rough, semi-finish, and finish) were implemented to understand the performance of the multi-pass cutting phenomenon and its effect on the surface of IN718. For all samples, rough (single pass) cutting displayed high roughness, while finish (three passes) cutting exhibited good surface quality. Compositional analyses on the machined surface showed debris formation including Zn and Cu-containing recast material, indicating wire erosion. The surface of single-crystal LPBF-IN718 after the WEDM process was smooth owing to its large grain size and less amount of grain boundary, resulting in slow cutting speed but a good surface finish. Thus, this study, for the first time, investigated the effect of unique microstructural characteristics of LPBF-fabricated IN718 on WEDM performance and machined surface quality.

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“…The action of the ionization allows the material to be easily removed. This process, which is also called spark erosion, can be used to remove various materials, such as those used in the production of complex components [9][10][11][12][13][14]. For making the process sustainable, an uninterrupted machining is needed to reduce the time and energy consumed during the machining.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Machining of Hastelloy Using WEDM by a Multi-Objective Approach

Manikandan¹,

Thejasree²,

Abdullah

et al. 2023

Sustainability

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Superalloys are a much-needed material for abundant engineering fields, such as nuclear-powered reactor components and aeronautics. Owing to their exceptional characteristics, such as higher thermal conductivity, they can be difficult to machine using conventional processes. Modern approaches to machining have evolved to utilize these materials. One of the techniques studied in this project is electrical discharge in a wire machine. This process can help to reduce the energy consumption during machining and negative impact on the environment. In addition, shortening the operation time of the machine can help to minimize its impact on the environment. The duration of the pulse and applied current are independent factors considered in this study. Material removal rate, surface roughness, dimensional deviation, and form/orientation tolerance errors are deemed as performance measures. The goal of this investigation is to reduce the time required to machine and improve the surface finish of components by implementing a Grey-based artificial neural network model. This method is useful in foretelling the conditions of the Wire Electro Discharge Machining (WEDM) process. This paper uses the Taguchi design and Analysis of Variance (ANOVA) framework to analyze the model’s variable inputs. The overall best coefficient of correlation (R = 0.9981) is fetched with an RMSE value of 0.0086. The material removal rate has been increased by decreasing the time taken for removal, which gives the possibility of consuming minimum energy. The finishing of the machined surface also improved. Moreover, this paper shows how to use an Artificial Neural Network (ANN) model with Grey Analysis. The results of the comparative analysis show that the values envisaged are closer with the actual values. The foretelling capacity of the evolved model is confirmed with the performance analysis of the developed model.

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Experimental Analysis on Wire Electrical Discharge Machining of Inconel 718 Using Taguchi’s Method

Cited by 17 publications

References 17 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Wire-EDM performance and surface integrity of Inconel 718 with unique microstructural features fabricated by laser powder bed fusion

Assessment of Machining of Hastelloy Using WEDM by a Multi-Objective Approach

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