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5 March 2021 Additive manufacturing of pure copper: From numerical simulations to experimental results
Hagen Kohl, Lisa Schade, Gabor Matthäus, Tobias Ullsperger, Burak Yürekli, Brian Seyfarth, Stefan Nolte
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Proceedings Volume 11677, Laser 3D Manufacturing VIII; 116770P (2021) https://doi.org/10.1117/12.2578320
Event: SPIE LASE, 2021, Online Only
Abstract
Additive manufacturing (AM) of pure copper using laser assisted powder bed fusion (LPBF) at a wavelength of 1070 nm is demonstrated. The rapid drop of absorption at the melting point of pure copper hinders the identification of an appropriate processing window. With a combination of an extensive parameter study and a comprehensive analysis using a multiscale numerical model of the LPBF process different processing windows extending over a wide range of incident laser powers were verified. The model allows to investigate the sensitivity of single parameters, and thereby gives the opportunity to carefully adjust the strategy of the AM process.
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Hagen Kohl, Lisa Schade, Gabor Matthäus, Tobias Ullsperger, Burak Yürekli, Brian Seyfarth, and Stefan Nolte "Additive manufacturing of pure copper: From numerical simulations to experimental results", Proc. SPIE 11677, Laser 3D Manufacturing VIII, 116770P (5 March 2021); https://doi.org/10.1117/12.2578320
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KEYWORDS
Additive manufacturing
Copper
Numerical simulations
Solids
Fusion energy
Laser processing
Maxwell's equations
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