About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Effects of Laser Polishing Parameters on Surface Roughness of Additively Manufactured Stainless Steel 316L Parts |
Author(s) |
Daniil V. Panov, Oleg Oreshkin, Igor Shishkovsky |
On-Site Speaker (Planned) |
Daniil V. Panov |
Abstract Scope |
As-built surface condition of the additively manufactured parts does not satisfy many industries requirements. Selective Laser Melting provides one of the lowest final roughness compare to other metal additive manufacturing methods. However, the surface roughness Ra usually varies from 5 to 30 μm and depends on processing parameters and conditions.
The research considers the application of laser polishing to surface finishing of additively manufactured parts. AISI 316L was chosen as the primary material for the research. The polishing was provided by Continuous Wave laser radiation with power up to 200 W. The impact of processing parameters on the after-processing roughness was shown. The influence of the laser polishing on the material properties was shown. The quantitative analysis of laser polishing for reduction of waviness and high-frequency roughness was provided. For the best set of processing parameters, the roughness of the as-built part was reduced from Ra 11 to 0.9 μm. |