Analysis of the relationship between the properties of selected materials and the parameters of the EDD process / Marcin Trajer, Adrian Czeszkiewicz, Magdalena Machno // W: Material Forming : The 26th ... więcej

Analysis of the relationship between the properties of selected materials and the parameters of the EDD process / Marcin Trajer, Adrian Czeszkiewicz, Magdalena Machno // W: Material Forming : The 26th International ESAFORM Conference on Material Forming held in Kraków, Poland, April 19-21, 2023 [Dokument elektroniczny] / ed. by Lukasz Madej, Mateusz Sitko, Konrad Perzynski. – Millersville, PA : Materials Research Forum LLC, 2023. – (Materials Research Proceedings, ISSN 2474-395X ; 28). – S. 1747-1758 : il. (w tym kolor.). – Tryb dostępu: https://www.mrforum.com/wp-content/uploads/open_access/9781644902479/189.pdf. – Oznaczenie ref./art.: 189. – Bibliogr. 27 poz., Abstr. – doi: 10.21741/9781644902479-189. – eISBN 978-1-64490-247-9

The thermophysical properties of the electrodes material significantly impact performance of the electrical discharge machining (EDM). The aim of this article was to investigate the influence of thermophysical ... więcej

The thermophysical properties of the electrodes material significantly impact performance of the electrical discharge machining (EDM). The aim of this article was to investigate the influence of thermophysical properties of selected materials on the EDM process. The effect of the thermophysical properties of these materials on process efficiency factors (material removal rate, linear tool wear) and hole geometry (aspect ratio, radial overcut) was analyzed. The results showed that selected thermophysical properties of the workpiece, such as thermal conductivity, melting point, have the most significant impact on the electro-erosion process. Optimal result parameters (material removal rate: 2.58 mm3/min, linear tool wear: 4.95 mm, aspect ratio: 8.00, radial overcut: 0.046 mm) and no presence of “bottom cone” were obtained for EDM drilling in Inconel 718 and similarly for AISI 1045 steel. On the other end were high resistance alloys such as tungsten carbide and copper alloy.