0603586 - FZÚ 2025 RIV NL eng J - Článek v odborném periodiku
Pathak, Sunil - Stránský, Ondřej - Šmaus, Jan - Kopeček, Jaromír - Narayanan, J.A. - Kaufman, Jan - Beránek, L. - Böhm, Marek - Brajer, Jan - Mocek, Tomáš
Influence on micro-geometry and surface characteristics of laser powder bed fusion built 17-4 PH miniature spur gears in laser shock peening.
Advances in Industrial and Manufacturing Engineering. Roč. 9, Nov (2024), č. článku 100151. ISSN 2666-9129. E-ISSN 2666-9129
Grant CEP: GA MŠMT(CZ) EH22_008/0004573; GA MŠMT LM2023051
Institucionální podpora: RVO:68378271
Klíčová slova: LPBF * laser shock peening * gear * microgeomtery * residual stresses * microstructure
Obor OECD: Materials engineering
Impakt faktor: 3.9, rok: 2023
Způsob publikování: Open access
DOI: https://doi.org/10.1016/j.aime.2024.100151

Micro-geometrical errors, surface roughness, and surface integrity (microstructure, residual stresses, microhardness) play an important role in defining the quality of the gears as they directly affect their noise, vibration characteristics and service life during their use. In the present work, underwater laser shock peening (LSP) is employed to improve the quality of the laser powder bed fusion built 17-4 PH small-size spur gears (12 mm outside diameter). LSP was employed near the spur gear root, and effects were measured in terms of residual stresses, variation in microgeometry errors, surface roughness, porosity, microstructure, and microhardness.
Trvalý link: https://hdl.handle.net/11104/0360941