Performance investigation of variant polymer graphite electrodes used in electrochemical micromachining of ASTM A240 grade 304

Pradeep, N.; Sundaram, K. Shanmuga; Kumar, M. Pradeep

doi:10.1080/10426914.2019.1697445

Cited by 23 publications

(12 citation statements)

References 29 publications

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“…The order of precedence of factors is tabulated in Table 4. The methodology availed for TOPSIS evaluation is depicted in Figure 6, for whose statistical complexity is minimal in correlation to other multicriteria methods [13]. The TOPSIS data for the ball milling experiment is tabulated in Table 5.…”

Section: Decision Making Methods (Multicriteria Analysis) For the Ball Milling Operationmentioning

confidence: 99%

“…Scientists and researchers have performed various cutting operations availing mechanical erosion (abrasive water jet and ultrasonic erosion) [5][6][7], thermal erosion (electrical discharge machining, wire electrical discharge machining, and electron beam melting, laser cutting) [8][9][10][11], and chemical erosion (chemical erosion and electrochemical cutting) [12,13] for composites of varied natures. Though each of them are significant in achieving desired results, wire-electrical discharge machining (WEDM) [14] supersedes in the aspects of achieving high quality cutting and keeping it economical in perspective of cutting operation costs.…”

Section: Introductionmentioning

confidence: 99%

“…Out of which multiattribute selection, Grey relational analysis (GREY), ELimination Et Choice Translation REality (ELECTRE), Vlse Kriterijumska Optimizacija Kompromisno Resenje (VIKOR), technique for the order of preference by similarity to the ideal solution Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), Multi-Objective Optimization on the basis of Ratio Analysis (MOORA), etc., found large applications in the manufacturing and industrial sector to resolve an optimized vector plane with minimal complexity. Out of which TOPSIS found its footing owing to less complexity and establishment of the Euclidean distance from the ideal solution [13].…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Murari¹,

Selvakumar

Sastry

2020

Metals

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The application of metal matrix composites (Al-SiC-TiC) in aerospace and defense industries have surged in the areas of hull safety, aviation fins, and closure units. The close to ideal solution for generating powdered mixture availing ball milling, for processing of a metal matrix composite of size 24 × 24 × 5.95 cm3 and composition of 75% Al, 10% SiC, and 10% TiC weight composition is 10:1 ball weight ratio, ball size of 8 mm, rotation speed of 250 rpm, and milling time of 4 h. The powdered mixture is compressed to pellet, sintered for two hours, and further silver coated in a physical vapor deposition setup to surge its electrical conductivity for ease of material removal. To obtain a perfect fit and finish, wire electrical discharge machining cycle has been carried out to machine the component under deionized water and oil + wax + paraffin dielectric mediums in 8 A peak current, 0.45 µs pulse on time, and 45 pulse off time as close to ideal solution, obtained by the technique for the order of preference by similarity to the ideal solution (TOPSIS) analysis. A surge is ascertained in kerf width, material removal rate, and surface roughness in oil + wax + paraffin environment in correlation with deionized water by 0.99–12.78%, 0.18–33.97%, and 2.15–36.86% respectively. The surface morphological study indicates a 32.28%, 42.57%, and 45.73% surge in residual compressive stress, surface roughness and corrosion resistance in oil + wax + paraffin dielectric medium in correlation to deionized water.

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Section: Decision Making Methods (Multicriteria Analysis) For the Ball Milling Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Murari¹,

Selvakumar

Sastry

2020

Metals

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“…The uniform current flow and distribution, in machining zone due to the vibration of workpiece contributes for high precision micro hole. Pradeep et al [15] investigated the process parameters of EMM with graphite electrode for SS 304 work material.…”

Section: Introductionmentioning

confidence: 99%

Enhancing MRR and accuracy with magnetized graphite tool in electrochemical micromachining of copper

Palaniswamy¹,

Seeniappan²,

Thanigaivelan

et al. 2023

CI&CEQ

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Micro hole is the fundamental feature found in any device/components. Hence this paper aims to produces the micro holes using electrochemical micromachining (EMM). The existing machining techniques in EMM for creating micro holes are associated with more overcut (OC). Hence, it is very essential to reduce OC and enhance the machining rate (MR). This paper aspires to investigate the effect of graphite electrode with magnetic force on copper plate. Four different tools namely electromagnetic graphite tool (EMGT), permanent magnet graphite tool (PMGT), graphite tool and stainless steel (SS) tool are employed for these experiments. The major influencing factors are machining voltage in volts, duty cycle in % and electrolyte concentration in g/l was considered on MR and OC. The results exposed that EMGT, PMGT and graphite electrodes produce MR of 106.4%, 74.6 % and 44.5 % over SS tool at parameter level of 23 g/l, 15 V, and 85% respectively. Graphite and EMGT electrode resulting in 11.9% and 3.41 % reduced OC respectively than SS tool at parameter level of 8V, 95% and 28 g/l. Additionally, scanning electron microscope (SEM) picture examination is conducted to identify the magnetic field effect on the work surface.

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“…An application of micro features such as micro square holes, micro grooves, taper surfaces, slots, micro holes and micro slits were increasing enormously in micro electromechanical systems (MEMS). Also due to the miniaturizations of electronic, medical, biomedical and automobile devices the micro machining plays significant role in manufacturing [1][2][3][4].The documented knowledge in EMM for generation micro features is archived for micro holes .In line with that, Pradeep et al [5] studied the performance of EMM using cryogenic treated graphite electrodes on SS 304. The use cryogenic treated tool shows good stray current protection and improves the accuracy of the micro-hole.…”

Section: Introductionmentioning

confidence: 99%

Performance study of electrochemical micromachining using square composite electrode for copper

T¹,

Perumal

Thanigaivelan³

2022

CI&CEQ

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The use of micro components is increasing day by day in the industries such as aviation, power circuit boards, inkjet nozzle and biomedical. Among various non-traditional micromachining methods, electrochemical micromachining (EMM) shows unique characteristics such as no tool wear, no residual stress and high accuracy. In this research EMM is considered to study the effect of square shaped stainless steel (SS) and aluminum metal matrix composite (AMC) tool on square hole generation. The significant process parameters such as machining voltage, duty cycle and aqueous sodium nitrate (NaNO3) electrolyte of varying concentration is considered for the study. The performances of EMM process are evaluated in terms of machining rate (MR) and Overcut (OC). The AMC tool shows 43.22 % lesser OC than the SS tool at the parameter combinations of 8V, 85% and 23 g/l. Also, for the same parameter combination MR for SS tool is 71.6 % higher than the AMC tool. Field emission scanning electron microscope image (FESEM) analysis shows that the micro square hole generated using composite electrode shows micro-pits on the circumference of the square hole. The energy dispersive X-ray spectroscopy (EDAX) analysis is conducted to verify presence and distributions of reinforcement in AMC tool.

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Performance investigation of variant polymer graphite electrodes used in electrochemical micromachining of ASTM A240 grade 304

Cited by 23 publications

References 29 publications

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Experimental Investigation of Wire-EDM Machining of Low Conductive Al-SiC-TiC Metal Matrix Composite

Enhancing MRR and accuracy with magnetized graphite tool in electrochemical micromachining of copper

Performance study of electrochemical micromachining using square composite electrode for copper

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