Options
Correlations of melt pool geometry and process parameters during laser metal deposition by coaxial process monitoring
Citation Link: https://doi.org/10.15480/882.4313
Publikationstyp
Conference Paper
Date Issued
2014-09-09
Sprache
English
TORE-DOI
Journal
Volume
56
Start Page
228
End Page
238
Citation
Physics Procedia 56: 228-238 (2014)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Elsevier
One major demand of today's laser metal deposition (LMD) processes is to achieve a fail-save build-up regarding changing conditions like heat accumulations. Especially for the repair of thin parts like turbine blades is the knowledge about the correlations between melt pool behavior and process parameters like laser power, feed rate and powder mass stream indispensable. The paper will show the process layout with the camera based coaxial monitoring system and the quantitative influence of the process parameters on the melt pool geometry. Therefore the diameter, length and area of the melt pool are measured by a video analytic system at various parameters and compared with the track wide in cross-sections and the laser spot diameter. The influence of changing process conditions on the melt pool is also investigated. On the base of these results an enhanced process of the build-up of a multilayer one track fillet geometry will be presented.
Subjects
Laser metal deposition
Process monitoring
DDC Class
530: Physik
Publication version
publishedVersion
Loading...
Name
1-s2.0-S1875389214003125-main.pdf
Size
1.23 MB
Format
Adobe PDF