Publications

Apr, 2025

ORNL Report

IN-SITU PROCESS MONITORING EVALUATION AND DEMONSTRATION USING ADVANCED CHARACTERIZATION WITH LASER POWDER BED SYSTEMS

Oak Ridge National Laboratory’s (ORNL) Manufacturing Demonstration Facility (MDF) worked with EOS Group to evaluate the current in-situ sensor capabilities of an EOS M290 Laser Powder Bed Fusion machine. The M290 was fitted with a 1 Mega-Pixel (MP) grayscale visible-light camera and a 5 MP temporally integrated (TI) near-infrared (NIR) camera. One print from stainless stee…

Apr, 2025

ORNL Report

Data-Driven Optimization of the Processing Window for 316H Components Fabricated Using Laser Powder Bed Fusion

Sep, 2024

ORNL Report

Diagnostic and Predictive Capabilities of the AMMT Digital Platform

The Advanced Materials and Manufacturing Technologies program is leveraging additive manufacturing technologies to fabricate the nuclear components required to assemble a microreactor core. Compared with traditional manufacturing processes, additive manufacturing allows the interior of the component to be directly observed during manufacturing. This unique capability promi…

Jul, 2024

ORNL Report

Fabrication of a Liner Assembly for the MARVEL Microreactor

A liner assembly for an intermediate heat exchanger within the MARVEL microreactor at Idaho National Laboratory has been fabricated using laser-based additive manufacturing. The liner design includes challenging features such as long thin walls, overhangs, and tight geometric tolerances. Two versions of the liner assembly, one full length and the other shortened, were prin…

Dec, 2023

ORNL Report

Report on Metal Additive Manufacturing and Characterization at Various Scales

Nov, 2023

Journal

A Data-Driven Framework for Direct Local Tensile Property Prediction of Laser Powder Bed Fusion Parts

This article proposes a generalizable, data-driven framework for qualifying laser powder bed fusion additively manufactured parts using part-specific in situ data, including powder bed imaging, machine health sensors, and laser scan paths. To achieve part qualification without relying solely on statistical processes or feedstock control, a sequence of machine learning mode…

Nov, 2023

ORNL Report

Report on diagnostic and predictive capabilities of the TCR digital platform

The Transformational Challenge Reactor program is leveraging additive manufacturing technologies to fabricate the nuclear components required to assemble a microreactor core. Compared with traditional manufacturing processes, additive manufacturing allows for direct observation of the interior of the component during manufacturing. This unique capability promises significa…

Nov, 2023

ORNL Report

Oak Ridge National Laboratory Compilation of AMMT Quality Assurance Procedures

The Advanced Materials and Manufacturing Technologies (AMMT) Program was formed in FY 2022 by the combination of three previous US Department of Energy Office of Nuclear Energy programs: • Advanced Methods for Manufacturing • Nuclear Materials Discover and Qualification Initiative • Transformational Challenge Reactor (TCR) This milestone report focuses on converting the fo…