Laser polishing of additively manufactured 316L stainless steel with different construction angles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00358451" target="_blank" >RIV/68407700:21220/22:00358451 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s00170-022-09514-4" target="_blank" >https://doi.org/10.1007/s00170-022-09514-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00170-022-09514-4" target="_blank" >10.1007/s00170-022-09514-4</a>
Alternative languages
Result language
angličtina
Original language name
Laser polishing of additively manufactured 316L stainless steel with different construction angles
Original language description
Laser polishing process is a promising technology for post-processing of complex parts prepared by additive manufacturing. In this study, the nanosecond laser polishing process was employed to improve a surface roughness of SLM (selective laser melting) prepared 316 L stainless steel with different part orientation (0°, 15°, 45°, 75° and 90°) during construction. Afterwards, the changes of surface topography, morphology and the cross-sectional microstructure before and after laser polishing were investigated. Additionally, the study also focusses on the process of 3D printing, especially on material porosity after sintering process. The results obtained from computer tomography showed that the samples were well prepared, with porosity below 0.019%. After laser polishing, surface roughness represented by Sa and Sz values was reduced for all printed samples regardless to their construction angle with similar laser and scanning parameters. The maximum roughness reduction reaches more than 90% (from Sa = 9.8 µm to Sa = 0.77 µm). Moreover that, other surface analysis established the best conditions for laser polishing. Finally, from the cross-section, the microstructure analysis was done and thickness of melted layer, heat-affected zone followed by microhardness measurement was estimated. Except of one applied condition, all samples were very homogenic with no damages in intersection layer. Simultaneously, there were no changes in microhardness after laser process observed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
The International Journal of Advanced Manufacturing Technology
ISSN
0268-3768
e-ISSN
1433-3015
Volume of the periodical
121
Issue of the periodical within the volume
5-6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
14
Pages from-to
3215-3228
UT code for WoS article
000813607400008
EID of the result in the Scopus database
2-s2.0-85132173644