Experimental Investigation on Micro-Electrical Discharge Machining process for heat treated Nickel-based Nimonic 80A

Pant, Piyush; Bharti, Pushpendra S.

doi:10.1080/10426914.2022.2105889

Cited by 9 publications

(2 citation statements)

References 26 publications

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“…Moreover, Nimonic 80A boasts an impressive creep rupture strength at elevated temperatures, with values surpassing 300 MPa at 650 • C. Additionally, its oxidation resistance is notable, with a protective oxide layer forming on its surface, allowing it to withstand temperatures exceeding 700 • C in oxidizing environments. This alloy derives its superior mechanical properties from a balanced composition of nickel, chromium, and titanium, along with traces of aluminum and carbon [6,7]. Such a composition provides excellent resistance to corrosion [8,9], thermal stability, and mechanical strength, making Nimonic 80A an ideal material for components subjected to extreme operating conditions [10].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Surface Topography of Microfinishing Abrasive Films in Relation to Their Machining Capability of Nimonic 80A Superalloy

Tandecka,

Kacalak,

Szafraniec

et al. 2024

Materials

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This study investigates the surface topography of microfinishing abrasive films and their machining capability on the Nimonic 80A superalloy, a high-performance nickel-based alloy commonly used in aerospace and gas turbine engine applications. Surface analysis was conducted on three abrasive films with nominal grain sizes of 30, 15, and 9 μm, exploring wear patterns, contact frequency, and distribution. To assess the distribution of grain apexes, Voronoi cells were employed. Results revealed distinct wear mechanisms, including torn abrasive grains and cracked bond surfaces, highlighting the importance of efficient chip removal mechanisms in microfinishing processes. Larger grain sizes exhibited fewer contacts with the workpiece but provided more storage space for machining products, while smaller grain sizes facilitated smoother surface finishes. The research demonstrated the effectiveness of microfinishing abrasive films in reducing surface irregularities. Additionally, surface analysis of worn abrasive tools provided insights into wear mechanisms and chip formation, with the segmentation of microchips contributing to efficient chip removal. These findings underscore the significance of selecting appropriate abrasive films and implementing effective chip removal mechanisms to optimize microfinishing processes and improve surface finishing quality in advanced material machining applications. It is worth emphasizing that no prior research has investigated the microfinishing of components crafted from Nimonic 80A utilizing abrasive films, rendering this study truly unique in its contribution to the field.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Surface Topography of Microfinishing Abrasive Films in Relation to Their Machining Capability of Nimonic 80A Superalloy

Tandecka,

Kacalak,

Szafraniec

et al. 2024

Materials

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“…Surface roughness was quantified using a surface roughness tester, circularity was measured using Quick Image, and the microstructure and chemical content were examined using FESEM and EDS. Pant et al [15,16] studied the machining of heat-treated Nimonic 80A alloy using the electric discharge machining process to understand the impact of machining parameters on superalloy materials. Singh et al [17] utilized WEDM (Wire Electric Discharge Machining) to machine Nimonic 80A superalloy and investigated various process parameters.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Parametric Optimization of Micro-Electro Discharge Machining of Hastelloy C276 Super Alloy Using Response Surface Methodology and Particle Swarm Optimization

Parthiban,

Harinath,

Krishaanth

et al. 2024

AMM

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The need for the application of superalloys in aerospace industries in recent years has increased owing to its benefits such as extensive load-bearing capability under high temperatures. Hastelloy is one such superalloy that is extensively utilized in the aerospace sector because of its good corrosion and heat resistance among the other nickel-based superalloys. In this work, the investigation is conducted to understand the effects of input process parameters such as voltage, pulse off time (Toff), and pulse on time (Ton) on the response variables, namely Material removal rate (MRR), Tool wear rate (TWR), Overcut (OC), and Taper Ratio (TR) during micro-EDM of Hastelloy C276. For micro drilling the Hastelloy C276 material, a copper electrode with a diameter of 0.5 mm is utilized. To investigate the connections between the input and output characteristics, a technique known as the Response Surface Methodology (RSM), which is a collection of mathematical and statistical methodologies, is applied. The experimental runs are carried out with the help of the RSM-based Box-Behnken design (BBD). The experimental outcomes were computed, and ANOVA was used to identify the most influential variables. In addition, particle swarm optimization (PSO) was utilized to optimize the results, which were compared to the Response surface methodology approach. The outcomes of the PSO-optimized results revealed a strong correlation between expected and experimental outcomes over the RSM approach.

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Experiments and optimization of the hole EDM electrode’s parameters

Nguyen

Van

et al. 2023

Int J Adv Manuf Technol

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Experimental Investigation on Micro-Electrical Discharge Machining process for heat treated Nickel-based Nimonic 80A

Cited by 9 publications

References 26 publications

Evaluation of the Surface Topography of Microfinishing Abrasive Films in Relation to Their Machining Capability of Nimonic 80A Superalloy

Evaluation of the Surface Topography of Microfinishing Abrasive Films in Relation to Their Machining Capability of Nimonic 80A Superalloy

Multi-Objective Parametric Optimization of Micro-Electro Discharge Machining of Hastelloy C276 Super Alloy Using Response Surface Methodology and Particle Swarm Optimization

Experiments and optimization of the hole EDM electrode’s parameters

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