Study on the surface modification system with electrical discharge machine in the practical usage

Moro, Toshio; Mohri, Naotake; Otsubo, Hisashi; Goto, Akihiro; Saito, Nagao

doi:10.1016/j.jmatprotec.2003.10.058

Cited by 60 publications

(20 citation statements)

References 3 publications

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“…A higher EWR for the PM electrodes compared to solid electrodes was also reported in other research works. 1,3,7,9,16,26 However, for the TiC-W-Cu PM electrode, a reduction in EWR together with an increase in MRR as compared to alloy Cu-W electrode was reported. 4 In this study, no special effort was spent to reduce the EWR values of the PM/(Cu-B 4 C) electrodes since a high EWR (means more material erosion of the electrode) may play a positive role in the formation of an alloyed layer on the workpiece surface which is the main goal of this research.…”

Section: Edm Performance Outputsmentioning

confidence: 99%

Effect of powder metallurgy Cu-B₄C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Çoğun

Esen

Genç

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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The main aim of this study is to produce new powder metallurgy (PM) Cu-B 4 C composite electrode (PM/(Cu-B 4 C)) capable of alloying the recast workpiece surface layer during electric discharge machining process with boron and other hard intermetallic phases, which eventually yield high hardness and abrasive wear resistance. The surface characteristics of the workpiece machined with a PM/(Cu-B 4 C) electrode consisted of 20 wt% B 4 C powders were compared with those of solid electrolytic copper (E/Cu) and powder metallurgy pure copper (PM/Cu) electrodes. The workpiece surface hardness, surface abrasive wear resistance, depth of the alloyed surface layer and composition of alloyed layers were used as key parameters in the comparison. The workpiece materials, which were machined with PM/(Cu-B 4 C) electrodes, exhibited significantly higher hardness and abrasive wear resistance than those of machined with the E/Cu and PM/Cu. The main reason was the presence of hard intermetallic phases, such as FeB, B 4 C (formed due to the boron in the electrode) and Fe 3 C in the surface layer. The improvement of the surface hardness achieved for steel workpiece when using PM/(Cu-B 4 C) electrodes was significantly higher than that reported in the literature. Moreover, the machining performance outputs (workpiece material removal rate, electrode wear rate and workpiece average surface roughness (R a )) of the electrodes were also considered in this study.

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Section: Edm Performance Outputsmentioning

confidence: 99%

Effect of powder metallurgy Cu-B₄C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Çoğun

Esen

Genç

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…This technique significantly affects the surface characteristics of the modified surface, such as morphological structure and chemical compositional analysis [ 13 ]. Moreover, the surface produced by EDT exhibited superior corrosion-resistance, wear-resistance as compared to the untreated substrate material, and promoted bioactivity [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Corrosion and Wear Resistance of Ti6Al4V Alloy Using CNTs Mixed Electro-Discharge Process

Singh¹,

Ablyaz

Шлыков

et al. 2020

Micromachines

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This paper presents wear and corrosion resistance analysis of carbon nanotubes coated with Ti-6Al-4V alloy processed by electro-discharge treatment. The reported work is carried out using Taguchi’s L18 orthogonal array to design the experimental matrix by varying five input process parameters i.e., dielectric medium (plain dielectric, multi-walled carbon nanotubes (MWCNTs) mixed dielectric), current (1–4 A), pulse-on-time (30–60 µs), pulse-off-time (60–120 µs), and voltage (30–50 V). The output responses are assessed in terms of microhardness and surface roughness of the treated specimen. X-ray diffraction (XRD) spectra of the coated sample reveal the formation of intermetallic compounds, oxides, and carbides, whereas surface morphology is observed using scanning electron microscopy (SEM) analysis. For the purpose of the in-vitro wear behavior of treated samples, the surface with superior microhardness values in plain dielectric and MWCNTs mixed dielectric is compared using a pin-on-disc type wear test. Furthermore, electrochemical corrosion test is also conducted to portray the dominance of treated substrate of Ti-6Al-4V alloy for biomedical applications. It is concluded that the wear-resistant and the corrosion protection efficiency of the MWCNTs treated substrate enhanced to 95%, and 96.63%, respectively.

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“…The fourth way is the EDC technology. In this technology, Ti element released from the electrode and C element decomposed from dielectric oil are combined together to create TiC, which will be coated onto the surface of tooling to prolong the life span of the tool (Moro et al, 2004). Besides, instead of titanium bulk, Ti powder could be used to make the electrode used in EDC technology.…”

Section: Introductionmentioning

confidence: 99%

The coating of TiC layer on the surface of nickel by electric discharge coating (EDC) with a multi-layer electrode

Hwang

Kuo

Hwang

2010

Journal of Materials Processing Technology

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Study on the surface modification system with electrical discharge machine in the practical usage

Cited by 60 publications

References 3 publications

Effect of powder metallurgy Cu-B₄C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Effect of powder metallurgy Cu-B₄C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Enhancing Corrosion and Wear Resistance of Ti6Al4V Alloy Using CNTs Mixed Electro-Discharge Process

The coating of TiC layer on the surface of nickel by electric discharge coating (EDC) with a multi-layer electrode

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Study on the surface modification system with electrical discharge machine in the practical usage

Cited by 60 publications

References 3 publications

Effect of powder metallurgy Cu-B4C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Effect of powder metallurgy Cu-B4C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Enhancing Corrosion and Wear Resistance of Ti6Al4V Alloy Using CNTs Mixed Electro-Discharge Process

The coating of TiC layer on the surface of nickel by electric discharge coating (EDC) with a multi-layer electrode

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Resources

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Effect of powder metallurgy Cu-B₄C electrodes on workpiece surface characteristics and machining performance of electric discharge machining

Effect of powder metallurgy Cu-B₄C electrodes on workpiece surface characteristics and machining performance of electric discharge machining