Rautio, T., Mustakangas, A., Kumpula, J., & Järvenpää, A. (2022). Scanning strategy effect on the edge porosity and fatigue life of 316L PBF-LB parts. Procedia CIRP, 111, 130–133. https://doi.org/10.1016/j.procir.2022.08.106
Scanning strategy effect on the edge porosity and fatigue life of 316L PBF-LB parts
|Author:||Rautio, Timo1; Mustakangas, Aappo1; Kumpula, Jani1;|
1Kerttu Saalasti Institute, University of Oulu, Pajatie 5, 85500 Nivala, Finland
|Online Access:||PDF Full Text (PDF, 0.6 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022112566842
|Publish Date:|| 2022-11-25
In addition to the surface quality and appearance, the near surface scanning strategy has an influence on the porosity beneath the surface of LBPF manufactured 316L parts. Furthermore, this porosity will influence the fatigue life of the part which will be pronounced on a flexural bending type of fatigue. In this work, the effect of scanning strategy to the edge porosity was analyzed by optical microscopy and the effect on the fatigue life was measured with flexural bending tests. The results showed that the edge porosity had a clear impact on the fatigue life and the fatigue limit was improved by 30 % to 250 MPa by a simple parameter change.
|Pages:||130 - 133|
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
216 Materials engineering
The authors would like to acknowledge the financial support received from the Council of Oulu Region and the European Union (European Regional Development Fund) for the M3D project.
© 2022 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