Advancement in Ultrasonic Vibration and Magnetic Field Assisted Micro-Edm Process: An Overview

Abstract

Micro-machining of components has been emerged as a peak demand in the world of micro-manufacturing. Micro-EDM is proved to be the most suitable for micro drilling purposes. It is very essential to fabricate micro holes as well as features with very high dimensional accuracy and precision. The major drawbacks in micro-EDM processes are the low metal removal, tool wear and surface roughness. Researchers have carried out several investigations to compensate the various machining problems in the micro-EDM process. So, there evolves a need for development of more sophisticated machining features in micro-EDM process combining with additional techniques. This paper presents a brief review on the latest advancement in ultrasonic vibration and magnetic field assisted techniques to improve machining efficiency and surface qualities of machined features in micro-EDM process. Latest industrial applications of micro-EDM have been presented.

On some Possibilities for Optimizing the Wire Electrical Discharge Machining (WEDM) Processing of Welded Joints Applied to Stainless Steel

“…This research provides further evidence that the optimization of unconventional technologies cannot be considered definitively completed, as long as there is progress in science and technology. The results obtained confirm the conclusions of other research on the hybridization of ultrasonic and magnetic activation of the processing space by WEDM [9], [10], but bring important openings in terms of process monitoring and correlation of activation parameters, in relation to the particularities given by the processed materials. final quality.…”

“…One of the ways to improve working conditions was ultrasonic activation of the filiform electrode [5], [6], [7]. Magnetic activation of the dielectric liquid in the effective processing space was also used [8], [9]. The two ways of activating the processing environment have each contributed to the improvement of processing, in several respects [10].…”

The state of the art of electrical discharge drilling: a review

“…The prompt evacuation of debris takes a vital role in EDD processes. To develop new methods with which debris can be removed more efficiently, research on magnetic-assisted EDM drilling has been carried out to investigate how to use the magnetic force to push the debris away from the machining zone so as to enhance the debris removal efficiency in the EDD process [85].…”