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Surface modification using semi-sintered electrodes on electrical discharge machining

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Abstract

This study investigates how machining characteristics and surface modifications affect low-carbon steel (S15C) during electrical discharge machining (EDM) processes with semi-sintered electrodes. Among the machining characteristics determined, the material removal rate (MRR), surface deposit rate (SDR), and electrode wear rate (EWR) are included. Additionally, exactly how semi-sintered electrodes affect the surface modifications is also evaluated by electron probe microanalyzer (EPMA), micro hardness, and corrosion resistance tests. The experimental results confirmed that the composition of the semi-sintered electrodes is transferred onto the machined surface efficiently and effectively during the EDM process, and that the process is feasible and can easily form a modified layer on the machined surface.

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Abbreviations

EDM:

Electrical discharge machining

MRR:

Material removal rate (g/min)

SDR:

Surface deposit rate (g/min)

EWR:

Electrode wear rate (g/min)

EPMA:

Electron probe microanalyzer

EDA:

Electrical discharge alloying

P/M:

Powder metallurgy

WDS:

Wavelength dispersive spectrometry

I p :

Peak current (A)

τ p :

Pulse duration (μs)

V 0 :

No-load voltage (V)

DF:

Duty factor

WT:

Working time (s)

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Authors and Affiliations

  1. Department of Mechanical Engineering, Nankai Institute of Technology, No. 568, Zhongzheng Rd., Caotun, Nantou County, 542, Taiwan

    Yuan-Feng Chen, Han-Ming Chow, Yan-Cherng Lin & Ching-Tien Lin

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  1. Yuan-Feng Chen
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  2. Han-Ming Chow
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  3. Yan-Cherng Lin
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  4. Ching-Tien Lin
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Correspondence to Yan-Cherng Lin.

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Chen, YF., Chow, HM., Lin, YC. et al. Surface modification using semi-sintered electrodes on electrical discharge machining. Int J Adv Manuf Technol 36, 490–500 (2008). https://doi.org/10.1007/s00170-006-0859-x

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  • DOI: https://doi.org/10.1007/s00170-006-0859-x

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