Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijmachtools.2013.03.008
DC FieldValue
dc.titleTransitions of micro-EDM/SEDCM/micro-ECM milling in low-resistivity deionized water
dc.contributor.authorNguyen, M.D.
dc.contributor.authorRahman, M.
dc.contributor.authorWong, Y.S.
dc.date.accessioned2014-10-07T09:12:24Z
dc.date.available2014-10-07T09:12:24Z
dc.date.issued2013
dc.identifier.citationNguyen, M.D., Rahman, M., Wong, Y.S. (2013). Transitions of micro-EDM/SEDCM/micro-ECM milling in low-resistivity deionized water. International Journal of Machine Tools and Manufacture 69 : 48-56. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijmachtools.2013.03.008
dc.identifier.issn08906955
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/85803
dc.description.abstractOwing to its slight conductivity, deionized water has been used as a bi-characteristic fluid to combine micro-EDM and micro-ECM milling in a unique machining process which has been named as SEDCM milling. To attain both electrical discharge and electrochemical reaction during machining, selection of machining parameters such as feedrate and layer depth has been empirically observed to be of prime importance. This paper presents an analytical model to identify the critical conditions for transitions of material removal mechanisms in this hybrid machining process. The criteria for three distinct machining modes micro-EDM/SEDCM/micro-ECM milling are determined based on the thickness of material layer that electrochemical reaction could dissolve when the electrode scans over the surface. The critical feedrate for transitions of material removal mechanisms are then predicted using double layer theory, Butler-Volmer equation and Faraday's law of electrolysis. Experimental tests were also performed to validate the proposed model. It has been established that the SEDCM milling is only attained at moderate feedrate. For high feedrate, machining mode is changed to micro-EDM milling alone when the thickness of material layer that electrochemical reaction could dissolve is smaller than the roughness of micro-EDMed surface. On the contrary, for low feedrate, material removal mechanism is converted to pure micro-ECM when the thickness of layer dissolved by electrochemical reaction is higher than the preset layer depth. In addition, it is also found that lower feedrate is required for SEDCM milling when higher layer depth is used because more material needs to be removed by the sparks in every feed. © 2013 Elsevier Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.ijmachtools.2013.03.008
dc.sourceScopus
dc.subjectDeionized water
dc.subjectFeedrate
dc.subjectMicro-ECM
dc.subjectMicro-EDM
dc.subjectRemoval mechanism
dc.subjectTransition
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.ijmachtools.2013.03.008
dc.description.sourcetitleInternational Journal of Machine Tools and Manufacture
dc.description.volume69
dc.description.page48-56
dc.description.codenIMTME
dc.identifier.isiut000319547700006
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

22
checked on Nov 24, 2020

WEB OF SCIENCETM
Citations

21
checked on Nov 24, 2020

Page view(s)

88
checked on Nov 22, 2020

Google ScholarTM

Check

Altmetric


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