About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Potential of Dual Laser Array Powder Bed Fusion for the Processing of Nickel-base Alloy 625 |
Author(s) |
Tim Lantzsch, Norbert Pirch, Thomas Laag, Thomas Westphahlen, Constantin Haefner |
On-Site Speaker (Planned) |
Tim Lantzsch |
Abstract Scope |
Laser Powder Bed Fusion (LPBF) has become an industrially established manufacturing technique due to its' capability to produce highly complex components. To increase the productivity of industrial LPBF machines the number of laser scanner systems (LSS) is often multiplied, which causes an almost linear increase of machine costs. In contrast, within this study a novel LPBF machine concept with a flexible dual fiber laser array is investigated. LPBF processing experiments are carried out for nickel-base alloy 625. The manufactured test specimens using this approach are characterized regarding melt pool formation, part quality (density, surface roughness, micro hardness) and build-up rate. The obtained results are compared with a state-of-the-art single laser LPBF machine. The results indicate comparable part quality while the dual laser array LPBF approach yields a productivity increase by up to 100% compared to the single laser reference. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |