PSI - Issue 77

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2026) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 77 (2026) 639–648

International Conference on Structural Integrity

© 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Real-time monitoring technologies, such as infrared pyrometry may allow for dynamic classification of melting regimes during the build process. Furthermore, adjustments in scan strategy can refine thermal behavior and improve part quality. The impact of these parameters varies with material type, highlighting the importance of tailoring process conditions to specific powder characteristics to achieve optimal performance. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Keywords:Additive Manufactutuing; Selective Laser Melting; In situ Monitoring Abstract Laser Powder Bed Fusion (LPBF) is governed by intricate interactions between laser settings and material characteristics, which collectively influence melt pool formation, energy absorption, and defect generation. Key parameters such as laser power, scanning speed, beam size, and layer thickness play a critical role in determining the energy absorption behavior and the resulting melting mechanisms. Absorptivity and melt pool depth are especially responsive near the transition between conduction and keyhole melting modes, where thermal properties and energy input become closely linked. The geometry of the melt pool is also affected by the chosen scan strategy and powder properties. Finer and more uniformly distributed powders typically improve energy absorption and promote more stable melt pool formation. This results in higher part density and deeper melt pools across various alloy systems, including titanium, aluminum, and copper. In situ process monitoring with respect to mechanical properties of additively manufactured parts Y.Bakir a , I.Zetková a a Regional Technological Institute, Faculty of Mechanical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic

Corresponding Author. Tel.: +420773165516; E-mail address: bakir@fst.zcu.cz

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers 10.1016/j.prostr.2026.01.079