The development of reliable numerical tools for predicting the machined surface integrity has become of primary importance nowadays. This paper introduces a novel customized FE model to predict microstructural changes generated during turning of the Electron Beam Melted (EBM) Ti6Al4V alloy under dry cutting and cryogenic cooling. The material peculiar fine acicular microstructure and the nano-hardness variation are modelled and implemented into a FE model by means of a User Subroutine. The developed FE model permits to predict the microstructure (alpha lamellae thickness), the plastic deformation (alpha lamellae deformation) and nano-hardness variations induced by machining operation under dry and cryogenic conditions.

3D finite element modelling of surface modification in dry and cryogenic machining of EBM Ti6Al4V alloy

Umbrello, D.;Imbrogno, S.;
2017-01-01

Abstract

The development of reliable numerical tools for predicting the machined surface integrity has become of primary importance nowadays. This paper introduces a novel customized FE model to predict microstructural changes generated during turning of the Electron Beam Melted (EBM) Ti6Al4V alloy under dry cutting and cryogenic cooling. The material peculiar fine acicular microstructure and the nano-hardness variation are modelled and implemented into a FE model by means of a User Subroutine. The developed FE model permits to predict the microstructure (alpha lamellae thickness), the plastic deformation (alpha lamellae deformation) and nano-hardness variations induced by machining operation under dry and cryogenic conditions.
2017
Cryogenic; Cutting; Electron Beam Melting; Finite element method; Surface integrity; Ti6Al4V; Industrial and Manufacturing Engineering
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/20.500.11770/269623
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 42
  • ???jsp.display-item.citation.isi??? 36
social impact