Advanced manufacturing—A transformative enabling capability for fusion
| Autor: | Y. Morris Wang, P. Randall Schunk, Dean A. Buchenauer, M. F. Smith, Charles M. Spadaccini, Charles H. Henager, Richard E. Nygren, Dennis L. Youchison, R. Allen Roach, David M. Keicher, Ryan R. Dehoff, Yutai Katoh |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Fusion Fabrication business.industry Computer science Mechanical Engineering 02 engineering and technology Surface finish 021001 nanoscience & nanotechnology 01 natural sciences Nuclear Energy and Engineering Residual stress 0103 physical sciences Advanced manufacturing General Materials Science 0210 nano-technology Process engineering business Porosity Civil and Structural Engineering |
| Zdroj: | Fusion Engineering and Design. 136:1007-1011 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2018.04.055 |
| Popis: | Additive Manufacturing (AM) can create novel and complex engineered material structures. Features such as controlled porosity, micro-fibers and/or nano-particles, transitions in materials and integral robust coatings can be important in developing solutions for fusion subcomponents. A realistic understanding of this capability would be particularly valuable in identifying development paths. Major concerns for using AM processes with lasers or electron beams that melt powder to make refractory parts are the power required and residual stresses arising in fabrication. A related issue is the required combination of lasers or e-beams to continue heating of deposited material (to reduce stresses) and to deposit new material at a reasonable built rate while providing adequate surface finish and resolution for meso-scale features. Some Direct Write processes that can make suitable preforms and be cured to an acceptable density may offer another approach for PFCs. |
| Databáze: | OpenAIRE |
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