Development of Structures for ITER Toroidal Field Coil in Japan

Author

Iguchi, Masaki ; Chida, Yuji ; Takano, Kyoya ; Kawano, Katsumi ; Saito, Takashi ; Nakajima, Hiromasa ; Koizumi, N. ; Minemura, T. ; Ogata, Hiroaki ; Ogawa, Tomomi ; Oosemochi, K. ; Niimi, K. ; Tokai, D.

Author_Institution

ITER Supercond. Magn. Technol. Group, Japan Atomic Energy Agency, Naka, Japan

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

4203305

Lastpage

4203305

Abstract

JAEA has conducted qualification and rationalization activities in Japan since March 2009 in order to rationalize manufacturing procedure of ITER toroidal field coil (TFC) structures. These following activities has been performed: qualification of structural materials and qualification and development of welding procedure according to the JSME code constituted for fusion devices, demonstration of the manufacturing method and procedures through manufacture of 1 m mock-ups and full-scale segments of TFC structure. From results of these activities, JAEA confirmed quality of materials and weld joints of gas tungsten arc welding and gas metal arc welding. In addition, JAEA obtained knowledge of welding deformation of actual TFC structures. This paper describes results of these qualification and development activities for ITER TFC structure.

Keywords

Tokamak devices; arc welding; deformation; plasma toroidal confinement; superconducting coils; welds; ITER toroidal field coil; JAEA; JSME code; TFC structures; full-scale segments; fusion devices; gas metal arc welding; gas tungsten arc welding; manufacturing procedure; materials quality; size 1 m; structural materials qualification; welding deformation; welding procedure development; Coils; Materials; Neodymium; Qualifications; Welding; ITER; tokamak devices; toroidal field coil structure;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2177795

Filename

6093935