A study of the Influence of Heat Treatment in the final Dimensions of Machined Parts through the process of Electrical Discharge by Penetration

Daniel Alves Sodré, Eduardo Tramontina, Marcos Tadeu Tavares Pacheco, Willy Ank de Morais


The process of electrical discharge machining (EDM) by penetration, allows manufacture metallic parts in various conditions of thermal treatment and hardness. However, the tables and technological formulas used to implement this process do not consider these different conditions of the material as a variable. Thus, this study aimed to evaluate the dimensional influence on machining components by EDM with and without heat treatment by quenching followed by tempering. It were evaluated industrial largely used tools steels, represent by the standards ABNT NM 122 Grades D6 and O1, and ABNT NM 87 Grade 1045. It was observed a dimensional variation between samples of 20mm.

Keywords: EDM by penetration, Machining, Heat Treatment.

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