Análise da qualidade superficial de peças erodidas com ferramenta retangular e lavagem unilateral

Abstract

Electroerosion is an unconventional machining process, widely used in high hardness parts and allows the machining of complex geometries. The material thinning is distributed through electrical discharges. The optimization of its parameters and techniques are important to obtain a higher quality on the surface of parts. In this work, the influence in the sense of dielectric fluid during the EDM process was investigated. The electrode used is electrolytic copper and the material submitted to machining was P20 steel. The results of texture, roughness and integrity of rectangular cavities were evaluated with the washing flow in the orthogonal and longitudinal direction. It was noted that the direction of the washing flow did not influence to stand out during the process, as it had similar results in both conditions. The difference in geometry dimensions was not sufficient to find relevant results, but important findings in the layers were obtained, and conclusions regarding non-electrical parameters were clear in this study. [resumo fornecido pelo autor]