Paper Key : IRJ************255
Author: Chowdavada Kiran Kumar,Pichuka Vamshi
Date Published: 20 Nov 2024
Abstract
This paper investigates the multifaceted nature of EDM processes for various types of materials and a range of applications by conducting two experiments. The first experiment on PMEDM of BeCu alloys examines the effect of gap current and powder concentration on MRR. It was observed that increment of both parameters leads to higher MRR values due to more intense spark formation and the energy density contribution from powder particle addition. The second experiment is focused on WEDM of a hybrid aluminum matrix composite (Al2024Al2O3W), with the objective of minimum dimension deviation. This article discusses the influence of cryogenically treated wire electrodes and various machining parameters on dimensional accuracy. Results show that the cryogenically treated wires had greatly minimized the dimensional errors, especially length, vertex angle, and curvature radius, compared to the untreated wires. The authors have emphasized that PMEDM experiment aims for maximum material removal in order, whereas WEDM experiment aims at high dimensional accuracy. These unique goals illustrate the versatility of EDM processes in addressing the specific machining needs for various material requirements.