Abstract
Surface modification of molds and dies by nitrogen diffusion processes has great application in the plastic injection industry. And electroerosion machining is a process capable of machining parts with complex and more detailed profiles and high hardness, having great application in this area. In this work, the application of the nitriding process on surfaces finished by electroerosion at different amperages was analyzed. From microhardness tests and metallographic analysis, it was found that after machining at low amperage or for roughing, it is possible to apply the superficial hardening of nitriding without the need for grinding and polishing.
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