Surface modification process by electrical discharge machining with a Ti powder green compact electrode

Wang, Z.L; Fang, Yu; Wu, Pei; Zhao, Weiguang; Cheng, Kai

doi:10.1016/s0924-0136(02)00597-6

Cited by 131 publications

(70 citation statements)

References 1 publication

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“…Through dry EDM, small or zero tool-electrode wear with improved surface quality can be achieved [114]. Aside from material removal capability, EDM process is also considered as surface modification/alloying technique, due to the evidence of material transfer which occurs between the electrodes and the suspended dielectric fluid additives during the process [124][125][126]. The development of smaller (microsize) products widens the applications of EDM to produce microcavities with high-aspect ratio [127], micro molds and dies [128], and micro rotational components [129].…”

Section: Evolution Of Edm Applicationsmentioning

confidence: 99%

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

Aliyu

Rani

Ginta

et al. 2017

Advances in Materials Science and Engineering

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Surface treatment remained a key solution to numerous problems of synthetic hard tissues. The basic methods of implant surface modification include various physical and chemical deposition techniques. However, most of these techniques have several drawbacks such as excessive cost and surface cracks and require very high sintering temperature. Additive mixed-electric discharge machining (AM-EDM) is an emerging technology which simultaneously acts as a machining and surface modification technique. Aside from the mere molds, dies, and tool fabrication, AM-EDM is materializing to finishing of automobiles and aerospace, nuclear, and biomedical components, through the concept of material migrations. The mechanism of material transfer by AM-EDM resembles electrophoretic deposition, whereby the additives in the AM-EDM dielectric fluids are melted and migrate to the machined surface, forming a mirror-like finishing characterized by extremely hard, nanostructured, and nanoporous layers. These layers promote the bone in-growth and strengthen the cell adhesion. Implant shaping and surface treatment through AM-EDM are becoming a key research focus in recent years. This paper reports and summarizes the current advancement of AM-EDM as a potential tool for orthopedic and dental implant fabrication. Towards the end of this paper, the current challenges and future research trends are highlighted.

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Section: Evolution Of Edm Applicationsmentioning

confidence: 99%

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

Aliyu

Rani

Ginta

et al. 2017

Advances in Materials Science and Engineering

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“…It was also found that under certain processing and operating conditions, P/M electrodes could cause net material addition instead of material removal. Wang et al (2002) suggested the application of this method to surface repairing and strengthening of cutting tools and moulds and have called it "electrical discharge coating (EDC)". They conducted experiments on carbon steel with titanium powder compact electrodes using negative polarity of the tool and a machining time of 18 min.…”

Section: Surface Modification By Powder Metallurgy Electrodesmentioning

confidence: 99%

Surface modification by electrical discharge machining: A review

Kumar

Singh

et al. 2009

Journal of Materials Processing Technology

419

165

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“…[36] For obtaining a hard, wear proof and corrosion resistant surface, many publications report a successful application of sinking EDM in a hydrocarbon dielectric with green compact or partially sintered electrodes made of WC-Co, TiC, or Ti powder. [9,24,25,31,34,33,43] The purpose is to create a coating of …”

Section: Compacted Powder Electrodesmentioning

confidence: 99%

Surface and Sub‐Surface Quality of Steel after EDM

et al. 2006

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This paper deals with the influence of electrical discharge machining (EDM) on surface and sub‐surface quality in the manufacturing of mould and tool steel. The thermal nature of material removal by EDM yields a thermally affected zone at the surface of the manufactured part. This zone consists of a molten and resolidified layer, and a heat affected zone, showing properties that differ considerably from the base material. Based on experimental investigations with three types of EDM processes (sinking EDM, wire EDM and milling EDM), the influence of process parameters on surface and sub‐surface properties is discussed. These include surface roughness, sub‐surface micro‐structure and composition, micro‐hardness and residual stresses. Attention goes to the dangers of surface degradation, yet also to the opportunities to use the EDM process for surface improvement.

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Surface modification process by electrical discharge machining with a Ti powder green compact electrode

Cited by 131 publications

References 1 publication

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

A Review of Additive Mixed-Electric Discharge Machining: Current Status and Future Perspectives for Surface Modification of Biomedical Implants

Surface modification by electrical discharge machining: A review

Surface and Sub‐Surface Quality of Steel after EDM

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