Experimental analysis of electrical discharge coating characteristics of magnesium alloy using response surface methodology

Elaiyarasan, U.; Satheeshkumar, V.; Senthilkumar, C.

doi:10.1088/2053-1591/aad11f

Cited by 23 publications

(14 citation statements)

References 20 publications

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“…Besides that, it can be seen that also the coating layer thickness increased significantly when a higher pulse on time was used. These results agree with those obtained by Chakraborty et al [5] and Elaiyarasan et al [19]. At a low pulse on-time value, the material deposition was lower due to the smaller plasma channel diameter.…”

Section: Effect Of Peak Current and Pulse On Time On The Coating Layer Thicknesssupporting

confidence: 93%

Effect of Peak Current and Pulse On Time on the Coating Layer Thickness using Electrical Discharge Coating

Zainudin

Jun

Yap

et al. 2021

MJCSM

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The present study focused on the surface modification of aluminum 6061 by using electrical discharge coating (EDC) with powder suspension. The effects of peak current (Ip) and pulse on time (Ton) on the coating layer thickness were investigated. This study used Tungsten powder as an additive and mixed it with the kerosene oil and surfactant Span 83. The results indicated that peak current and pulse on-time significantly affected the coating layer thickness. The thinnest coating layer was observed at 3A, 150 µs, while the thickest coating layer with an average value of 17.239 µm was obtained at parameter 4A and 250 µs. In conclusion, the high value of peak current and longer pulse duration on time increased the thickness of the coating layer.

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Section: Effect Of Peak Current and Pulse On Time On The Coating Layer Thicknesssupporting

confidence: 93%

Effect of Peak Current and Pulse On Time on the Coating Layer Thickness using Electrical Discharge Coating

Zainudin

Jun

Yap

et al. 2021

MJCSM

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“…Uniform deposition was observed at electrode prepared with high compaction load full sintered electrode as depicted in Figure 4(a-b) and small craters also identified in the surface, which shows the smooth surface. Figure 4(c-d) shows the SEM image of bulk deposition and bigger craters, formed at low compaction load partial sintered electrode, which provides the poorer surface finish [13]. The values of MH are high at low compaction load partially sintered electrode than filly sintered condition because hard deposition is formed in this condition, therefore MH is high.…”

Section: Effect Of Compaction Load On Mmr and Mhmentioning

confidence: 99%

Effect of sintered electrode on microhardness and microstructure in electro discharge deposition of magnesium alloy

Elaiyarasan

Satheeshkumar²,

Senthilkumar³

2020

Journal of the Mechanical Behavior of Materials

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In this study, an endeavour have been made to depositing the electrode materials over the surface of the magnesium alloy using electrical discharge machining (EDM) with WC-Cu powder compacted sintered electrode. Various process parameters such as compaction load, discharge current and pulse on time are selected to carry out the experiment in order to attain the maximum material migration rate (MMR) or deposition rate and microhardness (MH). It was concluded that the MMR and MH increased with increase in discharge current and pulse on time at low compacted electrode but it is decreased at lower discharge current and pulse on time. Highest MMR and MH were attained successfully at partial sintered low compaction load electrode. Microstructure evaluation has been carried out on deposited surface using scanning electron microscopy (SEM) and presence of electrode element in the deposited surface was confirmed by energy dispersive spectroscopy (EDS). Defects mechanism such as globules and craters are formed during EDC with high current and pulse on time respectively, which diminishes the surface roughness. It was observed that the compaction load is the influence parameter on the MMR and MH.

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“…The ANOVA table for the quadratic model for DR and EWR are given in Tables 4 and 5. The standard F distribution percentage point for confidence level limits for 95% and 99% are 4.06 and 7.87 respectively [9]. From the ANOVA tables, the F point for lack fit is 3.68 and 3.25 respectively which is smaller than the standard F value, thus the developed models are adequate.…”

Section: Mathematical Modeling Of Dr and Ewrmentioning

confidence: 87%

Parametric effect on electrical discharge treatment of magnesium alloy with powder composite electrode

Elaiyarasan

Satheeshkumar²,

Senthilkumar³

2020

SN Appl. Sci.

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In this present investigation, an attempt has been made to deposit the composite coating on ZE41A magnesium alloy using tungsten carbide and Nickel powder metallurgy electrode by electro discharge deposition. The experiment is conducted using ordinary EDM and EDM oil as dielectric fluid. Compaction load, current and pulse on time are selected as the input parameters that influences the characteristics such as deposition rate (DR) and electrode wear rate (EWR). Micro hardness of the deposited is evaluated using vicker hardness tester. Mathematical models are developed to study the effect of process parameters on the responses. It is revealed that the DR and EWR increases with increase in current and pulse on time at low compaction load, but it decreases at high compaction load. Maximum DR and EWR are achieved at compaction load (150 MPa), current (4 A) and pulse on time (90 µs). Maximum hardness values (772 HV) is achieved at surface deposited with low compaction and high current and pulse on time. Scanning electron microscope and Energy dispersive spectroscope are carried out in the deposited workpiece to study microstructural and confirm the presence of electrode materials respectively.

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Experimental analysis of electrical discharge coating characteristics of magnesium alloy using response surface methodology

Cited by 23 publications

References 20 publications

Effect of Peak Current and Pulse On Time on the Coating Layer Thickness using Electrical Discharge Coating

Effect of Peak Current and Pulse On Time on the Coating Layer Thickness using Electrical Discharge Coating

Effect of sintered electrode on microhardness and microstructure in electro discharge deposition of magnesium alloy

Parametric effect on electrical discharge treatment of magnesium alloy with powder composite electrode

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