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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Печать: 1093-3611
ISSN Онлайн: 1940-4360

Выпуски:
Том 23, 2019 Том 22, 2018 Том 21, 2017 Том 20, 2016 Том 19, 2015 Том 18, 2014 Том 17, 2013 Том 16, 2012 Том 15, 2011 Том 14, 2010 Том 13, 2009 Том 12, 2008 Том 11, 2007 Том 10, 2006 Том 9, 2005 Том 8, 2004 Том 7, 2003 Том 6, 2002 Том 5, 2001 Том 4, 2000 Том 3, 1999 Том 2, 1998 Том 1, 1997

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v3.i2-3.50
pages 193-211

NEW INTERESTING RESULTS ON THE ELECTRO-DISCHARGE MACHINING

A. Miernikiewicz
Cracow University of Technology, Al. Jana Pawla II 37, 31-864 Krakow, Poland
L. Bratasz
Marian Smoluchowski Inst. of Physics, Jagellonian University, ul. Reymonta 4,30-459 Krakow, Poland
Stephane Pellerin
GREMI, CNRS-Universite d'Orleans, BP 6759, 45067 Orleans Cedex 2, France LASEP, Universite d'Orleans - Antenne de Bourges, BP4043, 18028 Bourges, France
N. Pellerin
CEMHTI, 1D avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France; Université d'Orléans, Avenue du Parc Floral, BP6749 Orléans Cedex2, France
K. Musiol
Marian Smoluchowski Inst. of Physics, Jagellonian University, ul. Reymonta 4,30-459 Krakow, Poland
J. Chapelle
LASEP, Centre Universitaire de Bourges, Rue Gaston Berger, BP 4043, 18028 Bourges Cedex, France

Краткое описание

To have a better understanding of processes which play a role in erosion of electrodes caused by electro-discharge machining (EDM) plasmas, including the physical and chemical transformations in electrodes, it is important to know physical characteristics of the plasma and eroded materials. Its observation and their study, by techniques usual in a plasma or material science, have been undertaken. Following results have been obtained: measured plasma channel temperatures reaches values between 8000K and 10000K; craters observed on an electrode melting zone show important surface carbon concentration enrichment on about 20μm depth; mean diameter of the erosion crater on the cathode increases with time of the current impulse; for certain applied conditions, superposition of two current impulses, increased efficiency of our EDM device. Particularly, in the case of the cemented carbide, the improvement of erosion reached few hundred percents.


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