Empirical investigations during WEDM of Ni-27Cu-3.15Al-2Fe-1.5Mn based superalloy for high temperature corrosion resistance applications
File(s)
Published version
Author(s)
Aggarwal, Vivek
Singh, Jujhar
Sharma, Shubham
Pimenov, Danil Yurievich
Pruncu, Catalin
Type
Journal Article
Abstract
Monel K-500, a nickel–copper based alloy, is a very hard and tough material. Machining of such hard and tough materials always becomes a challenge for industry and this has been resolved by wire electric discharge machining (WEDM), a popular non-conventional machining method used for machining tough and hard materials having complex shapes. For the first time reported in this present research work is an experimental investigation executed on Ni-27Cu-3.15Al-2Fe-1.5Mn based superalloy using WEDM to model cutting rate (CR) and surface roughness (SR) using response surface methodology (RSM). The process parameters have been selected as pulse-on time, pulse-off time, spark-gap voltage and wire-feed rate. Experiments have been planned according to the central composite design (CCD). The results show that pulse-on time has a direct effect on CR while the pulse-off time has a reverse effect. The CR increases as pulse-on time increases, and decreases as pulse-off time increases. SR increases as pulse-on time increases, and decreases as pulse-off time increases. Furthermore, increase in spark-gap voltage decreases CR and SR both. The wire feed-rate has a negligible effect for both the response parameters. The optimized values of CR and SR achieved through multi-response optimization are 2.48 mm/min and 2.12 µm, respectively.
Date Issued
2020-08-06
Date Acceptance
2020-08-05
Citation
Materials, 2020, 13 (16), pp.1-16
ISSN
1996-1944
Publisher
MDPI
Start Page
1
End Page
16
Journal / Book Title
Materials
Volume
13
Issue
16
Copyright Statement
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://www.mdpi.com/1996-1944/13/16/3470
Subjects
Monel K-500
central composite design (CCD)
response surface methodology (RSM)
surface roughness
wire electric discharge machining (WEDM)
03 Chemical Sciences
09 Engineering
Publication Status
Published
Date Publish Online
2020-08-06