Peculiarity of the Tool-Electrode Wear Mechanism during Surface Machining with Electric Discharges in Pulse

Abstract:

The paper presents the results of experimental research on the wear mechanism of the tool-electrode as a result of machining metal materials by applying electric discharges in pulse. It examines several phenomena noticed on the tool - electrode surface, exactly, the oxide layer formation and the modification of the micro geometry of the tungsten tool electrode surface. The paper presents the experimental results on the behavior of the tool electrode made of stainless steel after the metal parts have been machined. It also presents the phases of mass transfer in the gap between electrodes.

• Periodical: Advanced Materials Research (Volume 1036)
• Pages: 470-475
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1036.470
• Online since: October 2014
• Authors: Pavel Topala*, Natalia Pinzaru, Dorin Guzgan, Alexandr Ojegov, Vitalie Besliu
• Keywords: Electrode Stain, Erosion, Roughness, Tool-Electrode, Wave, Wear

References

[1] Laurentiu, Slatineanu, Gheorghe, Nagit, Oana, Dodun, Margareta, Coteata, Francisco, Chinesta, Antonio, Goncalves-Coelo, Jorge, Pamies Teixeira, Manuel, San Juan, Loredana, Santo and Francisco, Santos. Non-traditional manufacturing processes, Chisinau, Tehnica Info, 2004, 300 pg.

[2] Gavrilas I., Marinescu N., Visan A. Modern technologies in machine-building, Bucharest, Politechnics Institute, (1997).

[3] Topala, Pavel. Fundamental and applicative study of the electro-erosion effects in non-conventional technologies. Doctor Habilitat Thesis in Technique. Technical University of Moldova. Chişinău, (2008).

[4] Topala, Pavel; Stoicev, Petru. Technologies of processing conductible materials by applying electric discharges in impulse. Chisinau, Technica Info, 2008, 265 pg.

[5] Topala, Pavel; Laurenţiu, Slatineanu; Stoicev, Petru. Physical and chemical processes during the machining by means of the electro-erosive method. Nonconventional technologies review, 2010, No. 1, pp.50-54.

[6] P. Topala; V. Rusnac; V. Beşliu; A. Ojegov; N. Pînzaru. Physical and chemical effects of EDI processing. Internet Journal of Engineering and Technology, 2011, Vol. 2, no. 2, issue 1. http: /www. i-jet. eu/journal-ijet/c-p-ijet 112. pdf.

[7] Topala, Pavel, Rusnac, Vladislav, Guzgan, Dorin. Increasing the thermoelectric capacity of emission in cathodes by modifying their surface microgeometry. The 16th International Conference Inventica 2012, June 13-15, 2012, Iasi, Romania. Edition Performantica, National Institute of Invents, Iasi. pp.623-624.

[8] Topala P. Electro-spark alloying of metallic surfaces in the under-tension regime/All-Union school-seminar Electro-physical methods and technologies of influencing over structure and properties of metallic materials, /All-Union scientific-technical society, Leningrad, 1980, pp.90-91.

[9] Pavel, Topala; Sergiu, Mazuru; Vitalie, Besliu; Pavel, Cosovschii; Petru, Stoicev. Increasing the durability of glass molding forms applying graphite pellicles. Proceedings of The 14th International Conference ModTech 2010, Modern Technologies, Quality and Innovation, pp.635-638.