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Multi objective study in powder mixed near dry electric discharge machining by using utility concept

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Title Multi objective study in powder mixed near dry electric discharge machining by using utility concept
 
Creator Sundriyal, Sanjay
Vipin
Walia, R S
 
Subject Electric discharge machining
Powder
Near dry
Material removal rate
Micro-hardness
Residual stress
Surface roughness
Tool wear rate
 
Description 80-91
Powder mixed near dry electric discharge machining is an advanced hybrid form of electric discharge machining method
which makes minimum use of dielectric oil and is quite sustainable in machining terms. In this article an approach has been
made to optimize the variable parameters such as tool type, metallic powder concentration, dielectric mist pressure, and mist
flow rate in order to study their effect along with their range in order to enhancing the machining performance in terms of
increased material removal rate (MRR), improved surface finish, improved micro-hardness, reduction of residual stress and
tool wear rate. Analysis of variance along with Taguchi L9 methodology was utilized for conducting experiments and it was
revealed by the confirmation experiments that by this technique, the optimized results for improved material removal rate,
improvement of surface finish, enhanced micro-hardness, reduced residual stress and tool wear rate were 0.63 (mg/s), 0.79
(μm), 249 (HV), 286 (MPa) and 1.07 (mg/min) respectively. The optimized values were obtained at Tool diameter (3mm),
flow rate of mist (15 ml/min), concentration of metallic powder (8 gm/l) and mist pressure (0.5 MPa) of dielectric medium.
 
Date 2022-04-06T09:46:05Z
2022-04-06T09:46:05Z
2022-02
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscair.res.in/handle/123456789/59468
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.29(1) [February 2022]