A5020768753- Additive Manufacturing and 3D Printing Technologies
- Manufacturing Process and Optimization
- Injection Molding Process and Properties
- Additive Manufacturing Materials and Processes
- Innovations in Concrete and Construction Materials
- Bone Tissue Engineering Materials
- 3D Printing in Biomedical Research
- Metal Forming Simulation Techniques
- Engineering Technology and Methodologies
- Polymer Foaming and Composites
- Material Properties and Processing
- Optical measurement and interference techniques
- Cellular and Composite Structures
- Thermography and Photoacoustic Techniques
- Metallurgy and Material Forming
- Electronic Packaging and Soldering Technologies
- Industrial Vision Systems and Defect Detection
- Polymer composites and self-healing
- Advanced Measurement and Detection Methods
- Thermal properties of materials
- Materials Engineering and Processing
- Textile materials and evaluations
- Laser and Thermal Forming Techniques
- Lightning and Electromagnetic Phenomena
- 3D IC and TSV technologies
Oak Ridge National Laboratory
2016-2024
National Transportation Research Center
2016-2021
Office of Scientific and Technical Information
2019-2020
National Technical Information Service
2020
University of Tennessee at Knoxville
2017
Naval Research Laboratory Materials Science and Technology Division
2016
The Big Area Additive Manufacturing (BAAM) system can print structures on the order of several meters at high extrusion rates, thereby having potential to significantly impact automotive, aerospace and energy sectors. functional use such parts, however, may be limited by mechanical anisotropy, in which strength printed parts across successive layers build direction (z-direction) lower than corresponding in-plane (x-y directions). This has been primarily attributed poor bonding between since...
We develop a method for programming minimal time tool paths single-bead-wide extrusions in additive manufacturing (AM) along an arbitrary lattice. present graphical model of the three-dimensional (3D) printing process and use solution to Chinese Postman Problem (CPP) optimize motion extruder on given mesh. some graph theory background explain how solve CPP. then experimental results, which we demonstrate implementation CPP 3D printing. Last, our understanding AM can be further utilized...
Carbon fiber (CF)-reinforced thermoplastic composites have been widely used in different structural applications due to their superior thermal and mechanical properties. The big area additive manufacturing (BAAM) system, developed at Oak Ridge National Laboratory’s Manufacturing Demonstration Facility, has manufacture several composite components, demonstration vehicles, molds, dies. These components designed fabricated using various CF-reinforced thermoplastics. In this study, the dynamic...
Abstract Large format additive manufacturing (AM) enables rapid of large parts and structures with minimum waste in material energy. Extrusion‐based AM deposition processes provide highly anisotropic thermal properties, which are not typically reflected textbook values for these materials. In order to develop accurate models that describe the directionally dependent behavior materials processing service, measurements specific heat capacity conductivity required. This work characterizes,...
Newly developed high thermal conductivity polymer composite 3D printing filaments are used to characterize the properties as a function of print orientation. The printed part is anisotropic and varies by 2–6 times depending on direction - demonstrating higher in deposition (in-plane) than two directions perpendicular (cross-plane through-plane). Therefore, path planning greatly affects overall heat dissipation rate performance sink. Traditionally, slicers generate paths based solely...