Showing 5 results for Author: Dennis J. Brown
Jul, 2026
Journal
This paper describes an active learning approach for part-to-part iterative machining process optimization using a hybrid surrogate tool life model. A probabilistic interpolating tool life model is developed by combining the empirical Taylor-type tool life equation and the model fit error. The probabilistic tool life model is then used to calculate the machining cost per p…
Feb, 2024
ORNL Report
Conventional manufacturing of wrought aluminum alloys generally involves rolling and forming of sheets of aluminum into the finished product. While these processes rapidly produce parts, produced parts are inherently limited to uniform thicknesses, specific geometries, and homogeneous material properties. Localized processing of formed parts could help overcome some of the…
Nov, 2023
ORNL Report
Casting of aluminum alloys is a cost-effective way to mass manufacture bulk aluminum parts for automotive applications. However, the casting process requires filling of a mold, which imposes some limitations on the geometries that can be successfully cast and limits parts to be a uniform material. Therefore, we proposed that a hybrid casting plus additive manufacturing app…
Nov, 2023
ORNL Report
The Advanced Materials and Manufacturing Technologies (AMMT) Program is aimed at developing cross-cutting technologies in support of a broad range of nuclear reactor parts, and to maintain U.S. leadership in materials and manufacturing technologies for nuclear energy applications. The overarching vision of the AMMT program is to accelerate the development, qualification, d…