Improving the quality of up-facing inclined surfaces in laser powder bed fusion of metals using a dual laser setup
Metelkova J, Ordnung D, Kinds Y, Witvrouw A, van Hooreweder B (2020)
Publication Type: Conference contribution
Publication year: 2020
Journal
Publisher: Elsevier B.V.
Book Volume: 94
Pages Range: 266-269
Conference Proceedings Title: Procedia CIRP
DOI: 10.1016/j.procir.2020.09.050
Abstract
Surface quality of parts produced by laser powder bed fusion (LPBF) is often insufficient for their final application. Up-facing inclined surfaces are among the major challenges, due to the combination of elevated edges (edge effect) and the staircase effect. This work presents a novel methodology to enhance the quality of inclined surfaces using a dual laser PBF setup. In the first step called “selective powder removal”, powder is blown away from undesired areas using shock waves produced by a nanosecond pulsed wave laser. Consequently, the newly exposed inclined surfaces can be remelted with a continuous wave laser, reducing significantly the surface texture.
Additional Organisation(s)
Involved external institutions
Belgium (BE)How to cite
APA:
Metelkova, J., Ordnung, D., Kinds, Y., Witvrouw, A., & van Hooreweder, B. (2020). Improving the quality of up-facing inclined surfaces in laser powder bed fusion of metals using a dual laser setup. In M. Schmidt, F. Vollertsen, E. Govekar (Eds.), Procedia CIRP (pp. 266-269). Elsevier B.V..
MLA:
Metelkova, Jitka, et al. "Improving the quality of up-facing inclined surfaces in laser powder bed fusion of metals using a dual laser setup." Proceedings of the 11th CIRP Conference on Photonic Technologies, LANE 2020 Ed. M. Schmidt, F. Vollertsen, E. Govekar, Elsevier B.V., 2020. 266-269.
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