Micro-EDM

Uhlmann, Eckart; Rohner, Markus; Langmack, Malte

doi:10.1016/b978-0-8155-1545-6.00003-x

Cited by 13 publications

(3 citation statements)

References 10 publications

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“…1 Features fabricated through micro-EDM process. Reproduced with permission [5][6][7][8][9] condition for the formation of the next spark [11]. Based on the literature survey, a comprehensive overview of the micro-EDM process and their potentials in altered fields of micromachining is displayed in Fig.…”

Section: Introductionmentioning

confidence: 99%

Recent trends, opportunities and other aspects of micro-EDM for advanced manufacturing: a comprehensive review

Kumar

Singh

Bajpai

2020

J Braz. Soc. Mech. Sci. Eng.

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Micro-electrical discharge machining is an indispensable tool to manufacture the component or parts of components at the micro-level with reasonable accuracy and precision. This article reports a comprehensive overview of micro-EDM along with their recent trends and key challenges. The sparking phenomenon, physical principle of material removal, process capabilities and flexibility with the other machining process are discussed in the initial part of the paper. Major development issues associated with nano-EDM are reviewed, and suggested solutions are proposed. Research and technology gaps enabling the transition from micro-EDM to nano-EDM are examined. The impact of discharge power technology and dielectric circulation is explored. Moreover, this review article explores the sustainability of the system (micro-EDM) through green manufacturing. A state-of-the-art has been studied in various aspects of micro-EDM. The promising future research scope is also noted in micro-EDM as well as in nano-EDM based on the electrical discharge.

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Section: Introductionmentioning

confidence: 99%

Recent trends, opportunities and other aspects of micro-EDM for advanced manufacturing: a comprehensive review

Kumar

Singh

Bajpai

2020

J Braz. Soc. Mech. Sci. Eng.

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“…The discharge energy delivered at µEDM is characterized through very low level, 10 -9 … 10 -5 J, justifying the term of micro. Thus it can be removed small amounts of material with volumes of 0.05 -500 µm 3 , using even single discharges [2].…”

Section: Introductionmentioning

confidence: 99%

On Correlation of Pulses and Tool Elongations at Micro-Electrical Discharge Machining Aided by Ultrasonics

Ghiculescu

Marinescu

Klepka

et al. 2015

AMM

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The paper deals with Finite Element Method (FEM) of thermal and mechanical-hydraulic components of material removal mechanism at micro-electrical discharge machining aided by ultrasonics (μEDM+US), due to EDM and US contribution. The dimensions of craters produced by single discharges under μEDM+US conditions are determined with different pulse durations in order to establish a machining strategy with correlation of pulses and tool elongations.

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“…Smaller dimensions for electrodes down to 2.5 µm are also available [1]. Special clamping systems also made from cemented carbide or ceramics are needed for the exact guiding and positioning of the electrode [4]. The longitudinal ultrasonic vibration of electrode during microEDM (µEDM+US) under some optimization conditions of working parameters contributed to significantly improve machining rate, surface quality and relative volumetric wear.…”

Section: Introductionmentioning

confidence: 99%

Aspects of Finite Element Analysis of Microdrilling by Ultrasonically Aided EDM and Related Knowledge Management

Ghiculescu

Marinescu

Ghiculescu³

et al. 2013

AMM

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Ultrasonic vibrations of electrode-tool and workpiece were applied successfully in specific cases to increase some parameters at micro-EDM, this working mode being characterized through machining instability due to vary narrow working gap. Our researches proved that all main technological parameters of micro-EDM can be improved by ultrasonic aiding (μEDM+US) in terms of machining rate, volumetric relative wear and surface roughness if some optimization conditions of working parameters are fulfilled. A multiphysics Finite Element Analysis (FEA) of material removal mechanism was achieved using two time dependent modules of Comsol 4.2 in order to attain the working parameters optimization. The FEA results compared to experimental data aiming at model validation led to some useful measures to optimize the working parameters. The knowledge management process was approached in order to suggest how human resource from an organization that uses μEDM+US can apply and improve the research results. Our EDM+US strategy is based on relative long pulse time with very low current overlapped on collective bubbles implosion occurring at the final of a liquid ultrasonic stretching semiperiod, and relative low consumed power on ultrasonic chain, contributing to increase the main output technological parameters mentioned above.

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Micro-EDM

Cited by 13 publications

References 10 publications

Recent trends, opportunities and other aspects of micro-EDM for advanced manufacturing: a comprehensive review

Recent trends, opportunities and other aspects of micro-EDM for advanced manufacturing: a comprehensive review

On Correlation of Pulses and Tool Elongations at Micro-Electrical Discharge Machining Aided by Ultrasonics

Aspects of Finite Element Analysis of Microdrilling by Ultrasonically Aided EDM and Related Knowledge Management

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