| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 03029 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Applications of Optics and Photonics | |
| DOI | https://doi.org/10.1051/epjconf/202533503029 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533503029
Micro-precision additive manufacturing of copper powder using femtosecond laser pulses
Photonic Ultrafast Systems Group, School of Engineering and Environment, University of Applied Sciences and Arts Northwestern Switzerland, 5100 Windisch, Switzerland
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
Green and blue lasers have seen increased use in manufacturing of copper. They offer great advantages compared to common IR lasers especially in additive manufacturing. We tested the feasibility of a low average power femtosecond lasers at a centre wavelength of 515nm for use in micron-precision additive manufacturing of copper particles. A laser beam with an average power of 4W in the near IR was used to achieve second harmonic generation, and the resulting green beam was used to melt copper particles with sizes between 30 and 50µm. Melting of the powder was achieved and small two-dimensional structures were created.
© The Authors, published by EDP Sciences, 2025
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