GA-based optimisation using RSM in WEDM of Nimonic-90: a nickel-based super alloy

Kumar, Vinod; Jangra, Kamal Kumar; Kumar, Vikas; Sharma, Neeraj

doi:10.1504/ijise.2018.10009176

IJISE

2018

DOI: 10.1504/ijise.2018.10009176

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GA-based optimisation using RSM in WEDM of Nimonic-90: a nickel-based super alloy

Vinod Kumar

Kamal Kumar Jangra

Vikas Kumar

et al.

Abstract: The present research work is focused on optimisation of WEDM process parameters for machining of Nimonic-90. It is a nickel-based alloy possessing creep resistance and high rupture strength at high temperature (up to 950°C). Genetic algorithm (GA) and response surface methodology (RSM) incorporated with each other to optimise the process parameters. Four input process parameters viz. discharge current (Ip), pulse-off time (Toff), pulse-on time (Ton), and servo voltage (SV) have been investigated and modelled f… Show more

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Cited by 2 publications

References 25 publications

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A review on conventional and nonconventional machining of Nickel-based Nimonic superalloy

Prasad

G.S

2023

Manufacturing Rev.

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Superalloys have gained prominence in recent years in various sectors, namely, spacecraft, marine, power, defense, vehicular and others, due to their ability to withstand high temperatures of up to 980 °C without deformation. Nimonics are Nickel-based superalloys usually known to be hard-to-machine materials due to their high strength at high temperatures, higher hardness, low thermal conductivity, and tendency to react with tool material. All these factors increase the level of difficulties in the machining of Nimonic superalloys. Numerous studies have examined various facets of machining of Nimonic alloys. This article summarizes the observation from 152 research articles to offer a reasonable engineering overview of the study of Nimonic alloys. An overview of Nimonic superalloys and their applications is given first. Then, various conventional and non-conventional machining processes, problems associated with multiple machining processes and methods to rectify the issues concerning the machining process have been reported. Thus, this summary will certainly help industrialists and academic researchers for further research work in machining Nimonic alloys.

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A review on conventional and nonconventional machining of Nickel-based Nimonic superalloy

Prasad

G.S

2023

Manufacturing Rev.

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Investigations of the Effect of Parameters on the CR and SR during Al6063/SiC/Ti at WEDM

Khanna

Sharma

Gupta

2019

AMM

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Wire electric discharge machine (WEDM) is a non-conventional machining process used to machine the hard to cut materials. WEDM has wide applications in die and punch industries, automobile, aerospace and medical industries. In this process the material is processed with the help of a wire electrode. In present work, Al6063/SiC/Ti composite was processed with the help of WEDM. As this spark-erosion machine tool have number of input process parameters, so to process any material it became mandatory to investigate the range of the machining parameters in which machine tool operate successfully. Every material represents its unique material characteristics due to which it can be machined successfully in a limited range of the parameters. Above and below this range the wire will break abruptly. So, in this present work an attempt has been made to investigate the range of the process parameters in which WEDM can process Al6063/SiC/Ti composite efficiently. The input parameters considered for the present work are pulse on-time, pulse off-time, servo voltage, peak current, wire feed and wire tension. After the experiments it was found that the pulse on-time, pulse off-time, servo voltage and wire-feed were the significant process parameters in the investigations of cutting rate and surface roughness.

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GA-based optimisation using RSM in WEDM of Nimonic-90: a nickel-based super alloy

Cited by 2 publications

References 25 publications

A review on conventional and nonconventional machining of Nickel-based Nimonic superalloy

A review on conventional and nonconventional machining of Nickel-based Nimonic superalloy

Investigations of the Effect of Parameters on the CR and SR during Al6063/SiC/Ti at WEDM

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