Thermo-fluid-metallurgical modelling of the selective laser melting process chain

David De Baere*, Mohamad Bayat, Sankhya Mohanty, Jesper Hattel

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

212 Downloads (Pure)

Abstract

The entire process chain of selective laser melting of Ti-6Al-4V is analysed. First, a thermo-fluid dynamical model is used to investigate the temperature profile during the process and estimate the size and shape of the melt pool. The inclusion of the Marangoni effect improves upon previous work by showing the liquid velocity in the melt pool. Next, this information allows us to estimate the morphology of the grains of a part produced by selective laser melting. Finally, a cellular automata is used to model the microstructural evolution during a uniform heat treatment at the beta transus temperature. It is shown that the model shows good agreement with earlier experimental results.

Original languageEnglish
JournalProcedia CIRP
Volume74
Pages (from-to)87-91
ISSN2212-8271
DOIs
Publication statusPublished - 2018
Event10th CIRP Conference on Photonic Technologies - Fürth, Germany
Duration: 3 Sep 20186 Sep 2018
Conference number: 10

Conference

Conference10th CIRP Conference on Photonic Technologies
Number10
CountryGermany
CityFürth
Period03/09/201806/09/2018

Bibliographical note

This is an open access article under the CC BY-NC-ND license

Keywords

  • Selective laser melting
  • Computational fluid dynamics
  • Microstructural modelling
  • Thermal modelling
  • Ti6Al4V

Fingerprint Dive into the research topics of 'Thermo-fluid-metallurgical modelling of the selective laser melting process chain'. Together they form a unique fingerprint.

Cite this