Influência dos fluidos dielétricos nas modificações superficiais do aço ABNT M2 usinado por eletroerosão

Abstract

The dielectric fluid used on the electrical discharge machining process (EDM) has great influence on the development and spark control of the process because it provides different conditions on the machining operation. The main objective of this work is the study of the performance of nine different dielectric fiuids used in EDM in three parameter conditions. This research tested traditional and nontraditional dielectric fiuids as deionized water and glycerin. A discuss of the most important factors that can produce changes on performance is presented, especially in terms of finish surface quality. The material used was the ABNT M2 high - speed Steel that has great tenacity, hardness and abrasion resistance. Cooper was used as material of the EDM tool, was noticed different performance between the fiuids, that includes the number of microcraks, length of microcraks and recast layer.