Surface integrity of SLM manufactured meso-size gears in laser shock peening without coating

0576238 - FZÚ 2024 RIV NL eng J - Journal Article
Pathak, Sunil - Böhm, Marek - Kaufman, Jan - Kopeček, Jaromír - Zulic, Sanin - Stránský, Ondřej - Shukla, A. - Brajer, Jan - Beránek, L. - Radhakrisnan, J. - Rostohar, D. - Mocek, Tomáš
Surface integrity of SLM manufactured meso-size gears in laser shock peening without coating.
Journal of Manufacturing Processes. Roč. 85, Jan (2023), s. 764-773. ISSN 1526-6125. E-ISSN 2212-4616
R&D Projects: GA MŠMT(CZ) EF20_079/0017754
Grant - others:OP VVV - MSCA-IF IV FZU(XE) CZ.02.2.69/0.0/0.0/20_079/0017754
Institutional support: RVO:68378271
Keywords : laser shock peening * meso * gear * surface quality * residual stresses * microstructure
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 6.2, year: 2022
Method of publishing: Open access

The present work aimed to improve the surface integrity of the selective laser melting manufacturing (SLM) manufactured 10 mm sized meso gears using the unconventional Laser Peening without Coating (LPwC) technique. To accomplish LPwC on meso gears low energy in the range of 200 mJ to 1000 mJ at 10 Hz were applied underwater in the gear root and fillet gap generating significant surface compressive residual stresses (from +73 MPa to 298 MPa).
Permanent Link: https://hdl.handle.net/11104/0345814