ITER vacuum vessel: Design review and start of procurement process

Fabrication feasibility study on copper cold spray in tokamak system

“…The triangular support (TrS) is one of complicated in-vessel components in tokamak system and about 3 mm thick copper cladding could be considered to improve the plasma vertical stabilization [3]. The component is 5 m in length and 1 m in width and is made of ITER grade stainless steel 316L(N)-IG.…”

Manufacturing preparations for the European Vacuum Vessel Sector for ITER

“…The VV sector is required to have tight tolerances (≤±10 mm) of the overall profile to allow the sectors to be welded later in situ with the other sectors [3]. The achievement of these tight tolerances is made more difficult by the nature of the austenitic steel 316 L(N)-IG, which exhibits high welding distortion due to the low thermal conductivity combined with a high coefficient of thermal expansion.…”

Thick SS316 materials TIG welding development activities towards advanced fusion reactor vacuum vessel applications

“…The fabrication of vacuum vessel sector components will be carried out with different type of welding processes for joining of SS materials in various forms of shells, ribs and key components to make final sector modules [6,7]. TIG welding is one of the major technique used for joining of the stainless steel plates for fabrication of different vacuum vessel components [8,9]. Some technical codes and standards are followed for the fabrication with welding procedures in ITER vacuum vessel components [10].…”