| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Schwanekamp, Tobias
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Impact of cobalt content and grain growth inhibitors in laser-based powder bed fusion of WC-Co
- 2019Thermal post-treatment of additively manufactured WC-Co processed by laser powder bed fusion
- 2019The impact of different binder systems in laser powder bed fusion of tungsten carbide composites
- 2018Parameter study on laser beam melting of WC-Co at 800°C pre-heating temperature
- 2017 Geometrical and topological potentialities and restrictions in selective laser sintering of customized carbide precision tools
- 2016Additive Manufacturing of application optimized tungsten carbide precision tools
Places of action
| Organizations | Location | People |
|---|
document
Parameter study on laser beam melting of WC-Co at 800°C pre-heating temperature
Abstract
In contrast to the classical sintering of WC-Co, the Laser Beam Melting (LBM) process is subject to a highly local-ized energy input and thermal exposure times in the order of microseconds. As a result, laser molten WC-Co is char-acterized by a heterogeneous microstructure inclosing pores, cracks, brittle material phases and WC grain growth. To reduce the thermal gradients during the process and thereby improve the mechanical properties of the ma-terial, a high temperature pre-heating module is applied. The effectiveness of 800°C pre-heating is demonstrated in an initial test by generating fully crack free specimens from WC-Co composite powder materials. Based on the results, the present study focuses on the optimization of the main process parameters at an elevated base plate temperature of 800°C. A response surface-based Design of Experiments is applied to determine the impact of the LBM parameters on the mechanical and microstructural material properties.