Recent analysis result in significant impact on the design of the Helium Cooled Pebble Bed (HCPB) Breeding Blanket (BB). Especially the main demanding sub-component of the BB in terms of fabrication, the First Wall (FW) is highly affected. As a matter of fact, the relevance of the developments made for the industrial fabrication of the FW used e.g. in the EU HCPB Test Blanket Module (TBM) for ITER is limited: On one hand in terms of the overall dimensions, but also in terms of geometry and cooling channel configuration. Thus, a fabrication strategy for the FW was proposed as an option in 2018 based on Additive Manufacturing (AM) offering a solution to cover the new aspects. The dedicated fabrication routine is based on Cold Spray (CS) in alternation with machining. In terms of manufacturing of non-plasma facing complex shaped thin- or double wall BB structures (e.g. Fuel Pins proposed for the HCPB BB) the use of AM also provides benefits compared to conventional technologies. Therefore, the AM process of Selective Laser Melting (SLM) is also investigated in terms of applicability for BBs. This paper gives an overview about the advances in different AM options applied for nuclear fusion structural low activation steels. Possibilities for spin-offs to other technological fields are discussed and conclusions are drawn reflecting licensing aspects and technological limits.

最近的分析结果对氦冷却卵石床（HCPB）繁殖毯（BB）的设计产生了重大影响。特别是在制造方面，BB的主要主要子组件“第一墙”（FW）受到很大影响。实际上，工业化制造固件所用开发成果的相关性有限，例如用于ITER的欧盟HCPB测试毯模块（TBM）：一方面在总体尺寸上，但在的几何形状和冷却通道配置。因此，基于增材制造（AM）的FW的制造策略在2018年被提出作为一种选择，该方案提供了覆盖新方面的解决方案。专用的制造程序是基于冷喷涂（CS）与加工交替进行的。在制造非等离子面对的复杂形状的薄壁或双壁BB结构（例如为HCPB BB提出的燃料销）方面，与传统技术相比，AM的使用也带来了好处。因此，还针对BB的适用性研究了选择性激光熔化（SLM）的AM过程。本文概述了应用于核聚变结构低活化钢的不同增材制造选项的进展。讨论了向其他技术领域进行分拆的可能性，并得出了反映许可方面和技术限制的结论。此外，还针对BB的适用性研究了选择性激光熔化（SLM）的AM过程。本文概述了应用于核聚变结构低活化钢的不同增材制造选项的进展。讨论了向其他技术领域进行分拆的可能性，并得出了反映许可方面和技术限制的结论。此外，还针对BB的适用性研究了选择性激光熔化（SLM）的AM过程。本文概述了应用于核聚变结构低活化钢的不同增材制造选项的进展。讨论了向其他技术领域进行分拆的可能性，并得出了反映许可方面和技术限制的结论。