Multi-Criteria Decision of W-Powder Mixed Electro Discharge Drilling Parameters using TOPSIS Approach

Jeevamalar, J.; Ramabalan, S.; Senthilkumar, C.

doi:10.5755/j01.mech.25.1.22883

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…In this machining method, copper, graphite, and brass tools were employed, and the current and pulse duration were both dynamically modified. Carbon was thought to be deposited on the surface of machines that were operated in kerosene environment [30]. When specimens were fabricated in distilled water using a graphite tool, the MRR was larger and the Ra was lower.…”

Section: Introductionmentioning

confidence: 99%

Effect of SiC Particle Incorporated Dielectric Medium on Electrical Discharge Machining Behavior of AA6061/B4Cp/SiCp AMCs

Khajuria¹,

Nagabhooshanam

Sharma

et al. 2022

Advances in Materials Science and Engineering

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In this work, it was observed that using motor oil as the dielectric fluid when producing AA6061/SiCp/B4Cp hybrid composites provided wealth from waste. In these studies, modifications in silicon carbide (SiC) concentration, electrode (copper and brass), current, pulse time, and reinforcing weight percentage were tested. Surface roughness and machined hardness are measured and reported for each removed piece of the material. The bridging effect of silicon carbide particles raised the material removal rate (MRR), while a thorough dielectric fluid flush enhanced the Ra value. On the machined topography, the oil carbon content left dark smudges. Machining performance is superior to that of copper electrode-processed specimens. The MRR, TWR, and Ra all rise as the discharge current and pulse duration increase. Because there is no remelted layer, composites with low machining surface hardness had better finishes. The parameters were optimized using the TOPSIS approach, and it was observed that the efficiency of machining was enhanced by utilizing engine oil by the concentration of 4 gl−1. Moreover, during machining, optimized parameters like pulse on time 36 seconds, current 4 Amps, and also a brass electrode.

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Section: Introductionmentioning

confidence: 99%

Effect of SiC Particle Incorporated Dielectric Medium on Electrical Discharge Machining Behavior of AA6061/B4Cp/SiCp AMCs

Khajuria¹,

Nagabhooshanam

Sharma

et al. 2022

Advances in Materials Science and Engineering

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“…The steps to perform MCDM using the TOPSIS method are as follows: Calculating the normalized values of k ij according to (18); Calculating normalized weighted values l ij according to (19). Then, determining the A + and Avalues of Ra and MRS according to equations (20) and (21).…”

Section: Results Of Multi-criteria Decision Making When Using Techniq...mentioning

confidence: 99%

“…In this study, SR and MRR were selected as the criteria for this problem and a set of optimum input factors was proposed. The choice of the best option when machining Inconel 718 by PMEDM with titanium powder is outlined in [19]. In addition, the criteria given are also RS and MRR and the TOPSIS method was applied for MCDM.…”

Section: Introductionmentioning

confidence: 99%

A study on multi-criteria decision-making in powder mixed electric discharge machining cylindrical shaped parts

Danh

Huy²,

Lam

et al. 2022

Eureka: PE

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In life as well as in engineering, many times, it is necessary to choose the best option among many different options. That will be more difficult when the criteria given for the selection contradict each other. For example, when external cylindrical grinding, the minimum surface roughness requirement necessitates a small depth of cut and feed rate. The material removal rate will be reduced in this case, and this requirement will conflict with the maximum material removal rate requirement. To solve the above problem, a very useful tool is multi-criteria decision-making (MCDM). In this paper, for the first time, MCDM results for powder mixed discharge machining (PMEDM) cylindrical parts of SKD11 tool steel with copper electrodes have been presented. In this work, eighteen experiments with the L18 (16×53) design using the Taguchi method were conducted. Six main input process parameters include the powder concentration, the pulse current, the servo voltage, the pulse on time, and the pulse off time. To select an alternative that simultaneously ensures two criteria including minimum surface roughness (RS) and maximum material removal speed (MRS), four different MCDM methods including MAIRCA (Multi-Attributive Ideal-Real Comparative Analysis), MARCOS (Measurement of Alternatives and Ranking according to Compromise Solution), TOPSIS (Technique for order of preference by similarity to ideal solution), and EAMR (Area-based Method of Ranking) and two methods of criteria weight calculation including MEREC (Method based on the Removal Effects of Criteria) and Entropy methods were selected. The results of MCDM when PMEDM SKD11 tool steel cylindrical parts with two methods for weight determination and four methods for solving MCDM problem were evaluated. In addition, the best alternative to ensure simultaneous minimum RS and maximum MRS was proposed.

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A study on machining performance of wire electric discharge grinding (WEDG) process during machining of tungsten alloy micro-tools

Kumar

Satsangi

2021

Sādhanā

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Multi-Criteria Decision of W-Powder Mixed Electro Discharge Drilling Parameters using TOPSIS Approach

Cited by 8 publications

References 8 publications

Effect of SiC Particle Incorporated Dielectric Medium on Electrical Discharge Machining Behavior of AA6061/B4Cp/SiCp AMCs

Effect of SiC Particle Incorporated Dielectric Medium on Electrical Discharge Machining Behavior of AA6061/B4Cp/SiCp AMCs

A study on multi-criteria decision-making in powder mixed electric discharge machining cylindrical shaped parts

A study on machining performance of wire electric discharge grinding (WEDG) process during machining of tungsten alloy micro-tools

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