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 language | English |
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Journal | Procedia CIRP |
Volume | 74 |
Pages (from-to) | 87-91 |
ISSN | 2212-8271 |
DOIs | |
Publication status | Published - 2018 |
Event | 10th CIRP Conference on Photonic Technologies - Fürth, Germany Duration: 3 Sept 2018 → 6 Sept 2018 Conference number: 10 |
Conference
Conference | 10th CIRP Conference on Photonic Technologies |
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Number | 10 |
Country/Territory | Germany |
City | Fürth |
Period | 03/09/2018 → 06/09/2018 |
Bibliographical note
This is an open access article under the CC BY-NC-ND licenseKeywords
- Selective laser melting
- Computational fluid dynamics
- Microstructural modelling
- Thermal modelling
- Ti6Al4V