ANALYSIS OF TOOL WEAR RATE DURING ELECTRICAL DISCHARGE MACHINING OF NON-CONDUCTIVE MATERIAL

Authors

  • Dragan Rodić University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering
  • Marin Gostimirović University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering
  • Milenko Sekulić University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering
  • Borislav Savković University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering
  • Anđelko Aleksić University of Novi Sad, Faculty of Technical Sciences, Department of Production Engineering

Keywords:

Assisting electrode, Zirconium ceramic, Discharge current, Pulse duration, Graphite powder

Abstract

In contemporary industrial and technical domains, non-conductive ceramic materials have gained significant importance owing to their outstanding properties. However, their inherent brittleness makes their processing a major challenge, rendering conventional methods ineffective. To overcome this problem, electrical discharge machining with an assisting electrode has proven to be effective. The main problem of this innovative machining is the high tool wear compared to conventional EDM. Therefore, this paper analyzes the influence of basic parameters such as discharge current and pulse duration on the tool wear rate when eroding zirconium ceramics. In order to reduce tool wear, graphite powder was added to the dielectric. The discharge current has the greatest influence on the wear rate of the tool and the pulse duration is slightly shorter. The addition of graphite powder to the dielectric has a demonstrably positive effect on the wear rate of the tool.

Downloads

Published

2024-02-18

Issue

Vol. 2 No. 3 (2023)

Section

Articles