Nano Archive

Electrical measurements in μ-EDM

Ferri, Carlo and Ivanov, Atanas and Petrelli, Antoine (2008) Electrical measurements in μ-EDM. Journal of Micromechanics and Microengineering, 18 (8). pp. 1-13. ISSN 0960-1317 (Print) ; 1361-6439 (Online) ;

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution No Derivatives.

336Kb
[img]Other (DVI ) - Published Version
Available under License Creative Commons Attribution No Derivatives.

89Kb
[img]
Preview
Postscript - Published Version
Available under License Creative Commons Attribution No Derivatives.

947Kb

Official URL: http://www.iop.org/EJ/abstract/0960-1317/18/8/0850...

Abstract

The phenomena occurring between the electrodes in electric discharge machining when manufacturing features on the micro-metre scale (µ-EDM) is not fully understood. Poor quantitative knowledge of the sources of variability affecting this process hinders the identification of its natural tolerance limits. Moreover, improvements in measuring systems contribute to the acquisition of new information that often conflicts with existent theoretical models of this process. The prime objective of this paper is to advance the experimental knowledge of µ-EDM by providing a measurement framework for the electrical discharges. The effects of the electrodes metallic materials (Ag, Ni, Ti, W) on the electrical measurements defined in the proposed framework are analysed. Linear mixed-effects models are fitted to the experimental data using the restricted maximum likelihood method (REML). The main conclusion drawn is that the discharge current and voltage as defined and measured in this framework do significantly depend on the electrode material even when keeping all the other machining conditions unchanged.

Item Type:Article
Additional Information:This is an author-created, un-copyedited version of an article accepted for publication in Journal of Micromechanics and Microengineering. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at http://dx.doi.org/10.1088/0960-1317/18/8/085007.
Uncontrolled Keywords:micro-EDM, EDM, mixed-effect models, electric discharge machining, electro-discharge machining, μ-EDM
Subjects:Engineering > Nanotechnology applications in mechanical engineering
Material Science > Nanofabrication processes and tools
Analytical Science > Metrology and standards in nanotechnology
Technology > Manufacturing processes for nanotechnology
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Faculty of Engineering, Science and Mathematics > School of Mathematics
ID Code:5013
Deposited By:Carlo Ferri
Deposited On:19 Apr 2009 14:00
Last Modified:19 Apr 2009 14:00

Repository Staff Only: item control page