Investigation on Cr, MRR and Sr of Wire Electrical Discharge Machining (Wedm) on High Carbon Steel S50c

Abdullah, Bulan; Nordin, Mohammad Faezeen Mad; Basir, Muhamad Hafizuddin Mohamad

doi:10.11113/jt.v76.5701

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…The 3D models were used to measure Ra , consistent with other studies. 1 , 100 Ra was measured along the lengths of the reconstructed images in both the longitudinal direction of the artery, Ra L , and across the circumference of the artery, Ra CU , (Fig. 1 b).…”

Section: Methodsmentioning

confidence: 99%

Dynamic Viscoelasticity and Surface Properties of Porcine Left Anterior Descending Coronary Arteries

Burton

Freij

Espino

2016

Cardiovasc Eng Tech

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The aim of this study was, for the first time, to measure and compare quantitatively the viscoelastic properties and surface roughness of coronary arteries. Porcine left anterior descending coronary arteries were dissected ex vivo. Viscoelastic properties were measured longitudinally using dynamic mechanical analysis, for a range of frequencies from 0.5 to 10 Hz. Surface roughness was calculated following three-dimensional reconstructed of surface images obtained using an optical microscope. Storage modulus ranged from 14.47 to 25.82 MPa, and was found to be frequency-dependent, decreasing as the frequency increased. Storage was greater than the loss modulus, with the latter found to be frequency-independent with a mean value of 2.10 ± 0.33 MPa. The circumferential surface roughness was significantly greater (p < 0.05) than the longitudinal surface roughness, ranging from 0.73 to 2.83 and 0.35 to 0.92 µm, respectively. However, if surface roughness values were corrected for shrinkage during processing, circumferential and longitudinal surface roughness were not significantly different (1.04 ± 0.47, 0.89 ± 0.27 µm, respectively; p > 0.05). No correlation was found between the viscoelastic properties and surface roughness. It is feasible to quantitatively measure the viscoelastic properties of coronary arteries and the roughness of their endothelial surface.

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Section: Methodsmentioning

confidence: 99%

Dynamic Viscoelasticity and Surface Properties of Porcine Left Anterior Descending Coronary Arteries

Burton

Freij

Espino

2016

Cardiovasc Eng Tech

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“…Duong et al [2] used a regression optimizer to create a regression model for the surface roughness of the S50C steel component throughout the grinding process. Abdullah et al [3] surveyed the cutting ratio, material removal rate and surface roughness of S50C steel during wire electrical discharge machining (WEDM). Meanwhile, Masmiati et al [4] optimized the cutting conditions for minimal residual stress, shear force and surface roughness when milling S50C steel.…”

Section: Introductionmentioning

confidence: 99%

Multi-Response Optimization of Milling Process of Hardened S50C Steel Using SVM-GA Based Method

Nguyen

Dung

Nguyen

et al. 2023

Metals

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This study aims to find the optimized parameters for surveying the milling process of S50C steel in a minimum quantity lubrication (MQL) environment using a support vector machine-genetic algorithm (SVM-GA). Based on the experimental matrix designed by the Taguchi method, surface roughness and cutting force data were collected corresponding to each experiment with changes in input parameters such as cutting speed, tooth feed rate, and axial depth of cut, along with changes in two parameters of the minimum lubrication system: flow rates and injection pressure. Through analysis by the SVR-NSGAII method, the study obtained the optimal parameters of cutting and lubricating conditions when prioritizing either surface roughness or focusing on the cutting force; however, the most comprehensive result is believed to be achieved by balancing these two factors. So, when striving for the neutral value of both output parameters, which are surface roughness (µm) and cutting force (N), the optimum parameters including injection pressure (MPa), flow rates (mL/h), cutting speed (m/min), feed rate (mm/tooth), and axial depth of cut (mm) are proposed.

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“…In WEDM, a conductive wire is used as tool electrode, which produces discrete sparks to remove the material from the work piece immersed in dielectric fluid (Dabade and Karidkar, 2016; Sharma et al , 2013). Proper selection of the machining parameters can result in a higher material removal rate (MRR) and better surface finish (Abdullah et al , 2015; Lodhi and Agarwal, 2014). Sivaraman et al (2015) analyzed the effect of various process parameters during WEDM of titanium.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of wire electrical discharge machining of 20MnCr5 alloy steel

Kumar

Goyal

2020

WJE

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Purpose Wire electric discharge machining (WEDM) is a non-conventional machining process, which is used to provide difficult and intricate shapes. The purpose of this research work is to apply Taguchi’s technique to optimize the process parameters in WEDM. Alloy steel 20MnCr5 has been selected as base material for experimentation. The effects of the input process parameters such as wire type, pulse-on time, pulse-off time, peak current, wire feed rate and servo voltage have been calculated on the material removal rate (MRR) and surface roughness (Ra) in WEDM operation. Design/methodology/approach In the research work, Taguchi's technique is applied to optimize the process parameters in WEDM. Findings ANOVA indicated that pulse-off time was the most significant factor for the MRR, and servo voltage was the most significant factor for surface roughness (SR). As a part of the project, 20MnCr5 was machined in wire electric discharge machine, and the optimal control parameters were found to get higher MRR and better SR using Taguchi’s technique. Originality/value To the best of authors’ knowledge, after reviewing the literature, materials including alloys of metals such as 16MnCr5 and 20MnCr5 have not been investigated so far, and research regarding machining of these materials is limited. Therefore, 20MnCr5 material has been selected for this research work to generate WEDM data.

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Investigation on Cr, MRR and Sr of Wire Electrical Discharge Machining (Wedm) on High Carbon Steel S50c

Cited by 5 publications

References 8 publications

Dynamic Viscoelasticity and Surface Properties of Porcine Left Anterior Descending Coronary Arteries

Dynamic Viscoelasticity and Surface Properties of Porcine Left Anterior Descending Coronary Arteries

Multi-Response Optimization of Milling Process of Hardened S50C Steel Using SVM-GA Based Method

Multi-objective optimization of wire electrical discharge machining of 20MnCr5 alloy steel

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