INFLUENCE OF WC ELECTRODE COATING MATERIAL ON QUALITY INDICATORS IN MICRO-EDM FOR Ti-6Al-4V

Abstract

Limitations of micro-EDM include low machining productivity, poor surface
quality, and continuous electrode wear throughout the machining process. Using
coated electrodes in micro-EDM is a technical solution, it has been attracting the
attention of technical experts. This technical solution can bring high economic and
technical efficiency. In this study, the authors will investigate the influence of
several types of electrode coating materials on MRR, TWR and OVC in micro-EDM,
it aims to improve the efficiency of micro-EDM machining. AlCrN, TiN and carbon
coating materials are used to coat the WC electrode surface.