Process Monitoring of Directed-Energy Deposition of Inconel-718 via Plume Imaging

Date
2015
Authors
Nassar, A.R.
Starr, Brandon
Reutzel, E.W.
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Journal ISSN
Volume Title
Publisher
University of Texas at Austin
Abstract

Laser-metal interactions typically results in vaporization and plume formation. These phenomena are complex and depend upon the details of the laser-vapor-melt interactions. As such, plume characteristics are sensitive to changes in process characteristics. Here, a spectroscopy-based imaging technique is presented for the monitoring of directed energy deposition of Inconel 718. Plume geometry is shown to be related to the processing parameters and geometry of single-bead deposits.

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