ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Micro electro discharge machining is an important unconventional metal micromachiningtechnology. The performance of micro EDM depends on the combination of the tool and workmaterials used. In the absence of a comprehensive theoretical model to predict the effect ofelectrode materials on the performance of EDM, experimental investigations as described in thispaper become useful. The work materials studied include ferrous, non-ferrous and exotic material(XW42, Ti6Al4V, WC) and the tool electrode materials include the commonly used EDM toolmaterials namely tungsten, copper and graphite. It is found that in the microgroove machining bymicro EDM using foil electrodes, graphite consistently provides higher material removal rate thantungsten and copper tool electrodes and hence it is useful for the rough machining. On the otherhand tungsten tool electrode is preferable for finish machining as it provides the least surfaceroughness
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/13/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.526.79.pdf
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