Surface Modification Process by Electrical Discharge Machining with TiC Semi-sintered Electrode.

Moro, Toshio; Goto, Akihiro; Mohri, Naotake; Saito, Nagao; Matsukawa, Kanji; Miyake, H.

doi:10.2493/jjspe.67.114

Cited by 16 publications

(9 citation statements)

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“…Maximum value of micro-hardness was achieved at 2.2 A discharge current and 2 s pulse duration. Other studies with Ti powder compact electrodes have reported improvement in working life of the die by three to seven times (Moro et al, 2001). Adhesive strength and tribological properties of such surfaces were also found to be better (Miyake et al, 1998).…”

Section: Surface Modification By Powder Metallurgy Electrodesmentioning

confidence: 93%

Surface modification by electrical discharge machining: A review

Kumar

Singh

et al. 2009

Journal of Materials Processing Technology

423

165

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Section: Surface Modification By Powder Metallurgy Electrodesmentioning

confidence: 93%

Surface modification by electrical discharge machining: A review

Kumar

Singh

et al. 2009

Journal of Materials Processing Technology

423

165

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“…The researcher implemented the experimental investigation to study the effects of composite electrodes on die life in EDM and Ti was used as an electrode material. They showed that the hardness of the layer containing TiC is much higher than that of base material which lead to improve wear resistance of die surface by a factor of three to seven times [5]. Surface modification during EDM is one of the many methods for improving a workpiece's surface properties [6] and represents a future direction for EDM and surface modification research.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Surface Layers of Hot – Forging Dies of Skd61 Steel Fabricated by Die – Sinking Electrical Discharge Machining Using Copper and Titanium Electrodes

Phan¹

2018

JST

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Electrical discharge machining (EDM) is a popular unconventional method for manufacturing tools, molds, and dies. Currently, the surface layer of the hot die after EDM needed to be polished to remove the layer of » 50 mm. This is accepted according to practical experience and the lack of scientific basis because of limited research on the surface layer quality of the products after EDM and the study is focused on the evaluation of the product quality in the final processing. This study is aimed at the investigation of performance and structure of the surface layer in hot-forging die following die-sinking EDM. The machining conditions included the use of copper (Cu) and titanium (Ti) as electrode materials. A cross-sectional micrographic and hardness analysis was performed, as well as surface roughness measurements, in order to study the thermally affected zones of the hot-forging die surface layer of the SKD61 steel after EDM using oil as the dielectric fluid. The results showed that the performance of the die was reduced due to changes in the hardness and the chemical composition of the workpiece surface. The surface quality of hot-forging die after EDM with Ti or Cu electrode are similar. In this case, EDM using Ti electrode to improve the quality of hot die surface layer was unreasonable.

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“…This method is restricted to small size items only. There are risks associated with the use of harmful, corrosive and flammable gases [9,17]. The process requires sophisticated reactor which restricts its application in industries [9].…”

Section: Chemical Vapor Depositionmentioning

confidence: 99%

A Framework for Surface Modification by Electrical Discharge Coating using Variable Density Electrodes

2021

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Surface modification is the process of altering physical or chemical characteristics of the work-piece surface. In this paper, various surface modification techniques have been discussed. One of the most appropriate surface modification technique is electrical discharge coating (EDC), in which the hard material is made to deposit onto the work-piece in a state of reverse polarity condition. Different mechanisms of carrying out EDC are presented. Deliberate material transfer takes place by using electrodes or by dispersant of metal powders into the di-electric. A detailed review of the literature on the theme of surface modification through the EDC has been conducted. In last, a framework for conducting surface modification by EDC employing using density electrodes of same material is presented.

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Surface Modification Process by Electrical Discharge Machining with TiC Semi-sintered Electrode.

Cited by 16 publications

References 0 publications

Surface modification by electrical discharge machining: A review

Surface modification by electrical discharge machining: A review

Analysis of Surface Layers of Hot – Forging Dies of Skd61 Steel Fabricated by Die – Sinking Electrical Discharge Machining Using Copper and Titanium Electrodes

A Framework for Surface Modification by Electrical Discharge Coating using Variable Density Electrodes

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