| About this Abstract |
| Meeting |
2019 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2019)
|
| Symposium
|
2019 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2019)
|
| Presentation Title |
Alternative Approach on an In-situ Analysis of the Thermal Progression during the LPBF-M Process Using Welded Thermocouples Embedded into the Substrate Plate |
| Author(s) |
Norman Schnell, Marvin Siewert, Stefan Kleszczynski, Gerd Witt, Vasily Ploshikhin |
| On-Site Speaker (Planned) |
Norman Schnell |
| Abstract Scope |
Laser powder bed fusion (LPBF-M) is a very potent technology for creating highly individual, complex and functional metal parts. One of the major influencing factors is the thermal progression significantly influencing size accuracy, microstructure and process stability. Therefore, creating an enhanced understanding of thermal phenomena through measurements and simulations is crucial to increase the reliability of the technology. Current research is mainly based on temperature measurements of the upper layer, leaving major leeway at the substrate-part-interface. Especially this area is of utmost technical importance serving as the main heat sink. Insufficient heat dissipation leads to accumulations of heat, deformations and process breakdowns. This contribution presents a simple and flexible method to analyze the thermal progression close to the part inside the substrate plate. The acquired data shows very high consistency. Additionally, the results are compared to a model created using an at ISEMP developed FEM-Software leading to promising results for validation studies. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |