Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by:

Displaying 1 - 2 of 2

Laser power density distribution metrology to support emerging trends in metal Additive Manufacturing

September 11, 2024

Author(s)

David Deisenroth, Sergey Mekhontsev, Jordan Weaver, Samantha Webster

The laser power density distribution (PDD) applied to a material is a predominant process parameter that directly affects the properties of parts that are built with metal additive manufacturing (AM). Despite its prevalent effect on melting (especially

In-situ, Parallel Monitoring of Relative Temperature, Material Emission, and Laser Reflection in Powder-blown Directed Energy Deposition

September 10, 2024

Author(s)

Samantha Webster, Jihoon Jeong, Rujing Zha, Shuheng Liao, Alberto Castro, Lars Jacquemetton, Darren Beckett, Kornel Ehmann, Jian Cao

In-situ monitoring is critical for developing new control methods, advanced materials, and toolpath planning strategies in laser beam Directed Energy Deposition (DED-LB). Coaxial melt pool monitoring has typically been performed with cameras (e.g