Recent Trends and Developments in the Electrical Discharge Machining Industry: A Review

Abstract

Electrical discharge machining (EDM) is a highly precise technology that not only facilitates the machining of components into desired shapes but also enables the alteration of the physical and chemical properties of workpieces. The complexity of the process is due to a number of regulating factors such as the material of the workpiece and tools, dielectric medium, and other process parameters. Based on the material type, electrode shape, and process configuration, various shapes and degrees of accuracy can be generated. The study of erosion is based on research into processing techniques, which are the primary tools for using EDM. Empirical knowledge with subsequent optimization of technological parameters is one of the ways to obtain the required surface quality of the workpiece with defect minimization, as well as mathematical and numerical modeling of the EDM process. This article critically examines all key aspects of EDM, reflecting both the early foundations of electrical erosion and the current state of the industry, noting the current trends towards the transition of EDM to the 5.0 industry zone in terms of safety and minimizing the impact of the process on the environment.

Thermal modeling, simulation, and experimental validation of micro electric discharge machining of tungsten carbide (WC)

“…With the help of advanced algorithms and analytical tools, they have been able to push the boundaries of what is possible and unlock new possibilities for precision manufacturing and engineering [13]. Kamenskikh et al presented a comprehensive model of EDM processes, by considering various impacts on workpiece material, including the effect on material chemical composition, cooling behavior of dielectric medium, and final accuracy of the machined surface [14].…”