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Recent developments in the reverse micro-electrical discharge machining in the fabrication of arrayed micro-features

DSpace at IIT Bombay

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Title Recent developments in the reverse micro-electrical discharge machining in the fabrication of arrayed micro-features
 
Creator MASTUD, SA
GARG, M
SINGH, R
JOSHI, SS
 
Subject micromachining
reverse micro-electrical discharge machining
micro-electrical discharge machining
high aspect ratio structures
process mechanics
MICROELECTRODE ARRAY
ASSISTED EDM
VIBRATION
HOLES
ELECTRODES
PARAMETERS
ROTATION
WEAR
RODS
TOOL
 
Description High aspect ratio arrayed micro-structures and textured surfaces are required in diversified applications such as electrical contacts, printing heads, electrodes for micro-batteries, injection nozzles, nano-material delivery systems, biomedical implants, and hydrophobic surfaces. Reverse micro-electrical discharge machining (R-MEDM) process has a capability to fabricate such arrayed features on a variety of workpiece materials irrespective of their mechanical properties. R-MEDM is a variant of micro-electrical discharge machining (MEDM) process, key difference being, extruded arrayed features are fabricated in the R-MEDM process against the micro-cavities that are machined in MEDM. This article highlights the recent advances in process characterization and modelling of mechanics of the R-MEDM process. The focus of discussion is on comparing the process with the other micromachining processes presently available for the fabrication of arrayed micro-features. In addition, R-MEDM process characteristics in the fabrication of arrayed features on 'easy' and 'difficult' to erode materials are presented. It is understood that R-MEDM has comparable or in some cases better performance in the fabrication of arrayed features than the processes like micro-milling, micro-wire EDM, micro-wire electrical discharge grinding (EDG) and block EDG.
 
Publisher SAGE PUBLICATIONS LTD
 
Date 2014-10-15T16:35:11Z
2014-10-15T16:35:11Z
2012
 
Type Article; Proceedings Paper
 
Identifier PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, 226(C2)367-384
http://dx.doi.org/10.1177/0954406211424672
http://dspace.library.iitb.ac.in/jspui/handle/100/15223
 
Language en