DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/5018

Title: Modeling of surface roughness and the role of debris in micro-EDM
Authors: KIRAN, MPSK
JOSHI, SS
Keywords: material removal
machining process
discharge
Issue Date: 2007
Publisher: ASME-AMER SOC MECHANICAL ENG
Citation: JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 129(2), 265-273
Abstract: Surface roughness is one of the important quality characteristic of a micromachined component. This paper presents a model to predict surface roughness of micro-EDmachined surfaces. The model is based on the configuration of a single-spark cavity formed as a function of process parameters. Assuming the normal distribution of surface heights, the mu and sigma (R-q) of the surface profile arc evaluated after every spark. The model was further extended to capture the role of debt-is in inicro-EDM in changing electric potential at the micropeaks on the cathode surfaces. The chemical kinetics approach was used to evaluate the change in plasma enthalpy and composition as a result of debris inclusion in the dielectric. The corresponding energy distribution between the electrodes was used to predict configuration of the single-spark cavity and the consequent surface roughness using the earlier surface roughness model. The modeling results were found to agree well with the inicro-EDM validation experiments performed without and with the inclusion of artificial debris (iron particles) in the dielectric.
URI: http://dx.doi.org/10.1115/1.2540683
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5018
http://hdl.handle.net/10054/5018
ISSN: 1087-1357
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback