A comparison of the machining performance of micro-EDM milling and sinking is proposed considering the fabrication of micro-channels with controlled sloped walls realized in a hardened steel workpiece. Adopting the fine-finishing machining regime for both micro-EDM techniques, the experimental results show that micro-EDM sinking is about 10 times faster than milling in the worst case, though a lack of accuracy in the final micro-features in the former case is detected due to not compensated tool wear. On the contrary, micro-EDM milling provides a better control of the micro-channel dimensions. Finally, a micro-filter mold for medical applications is machined in order to show the potential of the combination of both technologies.

A new process combining micro-EDM-milling and micro-EDM-sinking for fast fabrication of micro-channels with draft angle

I. Fassi
2016-01-01

Abstract

A comparison of the machining performance of micro-EDM milling and sinking is proposed considering the fabrication of micro-channels with controlled sloped walls realized in a hardened steel workpiece. Adopting the fine-finishing machining regime for both micro-EDM techniques, the experimental results show that micro-EDM sinking is about 10 times faster than milling in the worst case, though a lack of accuracy in the final micro-features in the former case is detected due to not compensated tool wear. On the contrary, micro-EDM milling provides a better control of the micro-channel dimensions. Finally, a micro-filter mold for medical applications is machined in order to show the potential of the combination of both technologies.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/501964
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 8
social impact