Effect of laser power and focal spot size on the performance of LPBF systems

P. Peretyagin; W. Makoana; I. Yadroitsev; P. Pivkin; N. Krikheli; O. Kramar; R. Khmyrov; P. Podrabinnik; P. Naumenko; S. Grigoriev

doi:10.1117/12.3039766

8 November 2024 Effect of laser power and focal spot size on the performance of LPBF systems

P. Peretyagin, W. Makoana, I. Yadroitsev, P. Pivkin, N. Krikheli, O. Kramar, R. Khmyrov, P. Podrabinnik, P. Naumenko, S. Grigoriev

Author Affiliations +

Proceedings Volume 13234, Advanced Laser Processing and Manufacturing VIII; 132340M (2024) https://doi.org/10.1117/12.3039766
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

Laser Powder Bed Fusion (LPBF) technologies are now being widely adopted across the global industrial landscape. New LPBF systems with multiple lasers and an expanded work area are entering the market, thereby enhancing both the production speed and the maximum size of 3D parts that can be produced. The aim was to investigate the aspects of upscaling LPBF processing parameters on the characteristic formation of stable single tracks, which are the primary building blocks for this technology. A number of LPBF systems were employed in this study, each operating independently and utilizing distinct parameter regimes, to produce the single tracks on a solid substrate deposited with a thin powder layer. The results demonstrated that the geometrical characteristics of single tracks are predominantly influenced by laser power and scanning speed when scanning a thin powder layer. The results also indicate that higher laser power and spot size can be used to produce stable tracks with increasing linear energy input. However, there are a number of nuances to be considered in increasing the performance.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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P. Peretyagin, W. Makoana, I. Yadroitsev, P. Pivkin, N. Krikheli, O. Kramar, R. Khmyrov, P. Podrabinnik, P. Naumenko, and S. Grigoriev "Effect of laser power and focal spot size on the performance of LPBF systems", Proc. SPIE 13234, Advanced Laser Processing and Manufacturing VIII, 132340M (8 November 2024); https://doi.org/10.1117/12.3039766

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