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Title: Evaluation of the Performance of Atomic Diffusion Additive Manufacturing Electrodes in Electrical Discharge Machining
Authors: Bordón Pérez, Pablo Rubén 
Paz Hernández, Rubén 
Monzón Verona, Mario Domingo 
UNESCO Clasification: 3306 Ingeniería y tecnología eléctricas
330606 Fabricación de equipo eléctrico
331502 Cobre
Keywords: Additive Manufacturing
Atomic Diffusion Additive Manufacturing
Copper Electrodes
Electrical Discharge Machining
Material Extrusion Additive Manufacturing
Issue Date: 2022
Journal: Materials 
Abstract: Atomic Diffusion Additive Manufacturing (ADAM) is an innovative Additive Manufacturing process that allows the manufacture of complex parts in metallic material, such as copper among others, which provides new opportunities in Rapid Tooling. This work presents the development of a copper electrode manufactured with ADAM technology for Electrical Discharge Machining (EDM) and its performance compared to a conventional electrolytic copper. Density, electrical conductivity and energy-dispersive X-ray spectroscopy were performed for an initial analysis of both ADAM and electrolytic electrodes. Previously designed EDM experiments and optimizations using genetic algorithms were carried out to establish a comparative framework for both electrodes. Subsequently, the final EDM tests were carried out to evaluate the electrode wear rate, the roughness of the workpiece and the rate of material removal for both electrodes. The EDM results show that ADAM technology enables the manufacturing of functional EDM electrodes with similar material removal rates and rough workpiece finishes to conventional electrodes, but with greater electrode wear, mainly due to internal porosity, voids and other defects observed with field emission scanning electron microscopy.
ISSN: 1996-1944
DOI: 10.3390/ma15175953
Source: Materials[EISSN 1996-1944],v. 15 (17), (Septiembre 2022)
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