About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Process Limitation for Powder Bed Fusion with Laser Beam Multiplication |
Author(s) |
Florian Joachim Oskar Spieth, Thorsten Heeling, Hans-Christian Moehring |
On-Site Speaker (Planned) |
Florian Joachim Oskar Spieth |
Abstract Scope |
The necessity to improve the productivity per laser in powder bed fusion is driven by demands for increasing build rates, combined with high resolution and process requirements. One promising solution is the use of a beam splitter to build multiple parts with a single laser scanner system at once, utilising the full available laser power available in today’s single mode laser systems. However, due to its specific characteristics, this approach leads to limitations regarding part size, process window, build job layout, geometric tolerances, and machine specifications. This publication aims to investigate the influence of process boundaries on viable applications. In particular, the effect of beam splitting-related optical errors and the effect of shielding gas flow direction are analysed. The position dependent intensity and the superposition of effects are evaluated in terms of future boundaries on the technical implementation. Additionally, potential compensation methods for mitigating the detected limitations are discussed. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |