The present paper aims to describe the development of a FEM model for the simulation of a die-sinking micro-EDM process. A commercial FEM code specific for the simulation of thermo-mechanical forming processes was used. The developed model was based on the capacity of the code to simulate the removal process or the separation of the material through the mesh element deletion. The electrical discharges were simulated through a proper heat flux and the material melting temperature was set as a trigger for the element deletion. The heat flux was related to the EDM process parameters by means of mathematical models selected from the literature. In the first part of the present work, a model based on a single discharge analysis was developed; then, the model was extended to a sink EDM process characterised by repeated discharges. The model was validated in terms of machining time, top diameter and MRR by the execution of experimental tests.

(2020). FEM model development for the simulation of a micro-drilling EDM process [journal article - articolo]. In INTERNATIONAL JOURNAL, ADVANCED MANUFACTURING TECHNOLOGY. Retrieved from http://hdl.handle.net/10446/151471

FEM model development for the simulation of a micro-drilling EDM process

Quarto, Mariangela;D'Urso, Gianluca;Giardini, Claudio;Maccarini, Giancarlo
2020

Abstract

The present paper aims to describe the development of a FEM model for the simulation of a die-sinking micro-EDM process. A commercial FEM code specific for the simulation of thermo-mechanical forming processes was used. The developed model was based on the capacity of the code to simulate the removal process or the separation of the material through the mesh element deletion. The electrical discharges were simulated through a proper heat flux and the material melting temperature was set as a trigger for the element deletion. The heat flux was related to the EDM process parameters by means of mathematical models selected from the literature. In the first part of the present work, a model based on a single discharge analysis was developed; then, the model was extended to a sink EDM process characterised by repeated discharges. The model was validated in terms of machining time, top diameter and MRR by the execution of experimental tests.
articolo
Quarto, Mariangela; D'Urso, Gianluca; Giardini, Claudio; Maccarini, Giancarlo
(2020). FEM model development for the simulation of a micro-drilling EDM process [journal article - articolo]. In INTERNATIONAL JOURNAL, ADVANCED MANUFACTURING TECHNOLOGY. Retrieved from http://hdl.handle.net/10446/151471
File allegato/i alla scheda:
File Dimensione del file Formato  
s00170-019-04750-7.pdf

Solo gestori di archivio

Versione: publisher's version - versione editoriale
Licenza: Licenza default Aisberg
Dimensione del file 1.79 MB
Formato Adobe PDF
1.79 MB Adobe PDF   Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Aisberg ©2008 Servizi bibliotecari, Università degli studi di Bergamo | Terms of use/Condizioni di utilizzo

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/151471
Citazioni
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 4
social impact