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Advanced manufacturing—A transformative enabling capability for fusion

Journal Article · · Fusion Engineering and Design
 [1];  [2];  [2];  [2];  [3];  [3];  [4];  [1];  [1];  [1];  [1];  [5]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
+ Show Author Affiliations

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. In conclusion, Some Direct Write processes that can make suitable preforms and be cured to an acceptable density may offer another approach for PFCs.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1454778
Alternate ID(s):
OSTI ID: 1512625
OSTI ID: 1525717
OSTI ID: 1483189
OSTI ID: 1491144
Report Number(s):
PNNL-SA-136010; PII: S0920379618303430
Journal Information:
Fusion Engineering and Design, Journal Name: Fusion Engineering and Design Journal Issue: B Vol. 136; ISSN 0920-3796
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

Figures / Tables (3)

Fig. 1(p. 2)figure Fig. 1
Fig. 2(p. 3)figure Fig. 2
Table 1(p. 4)table Table 1

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Related Subjects

3-D printing
42 ENGINEERING
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Additive manufacturing
Direct writing
First wall
Plasma facing components
Tungsten