Abstract
The Japan Atomic Energy Agency (JAEA) has conducted activities in Japan since March 2009 in order to establish the manufacturing procedure for the ITER toroidal field (TF) coil structures. A TF coil structure consists of a TF coil case and components. The activities include ensuring that the structural materials and welding procedure comply with the Japan Society of Mechanical Engineers (JSME) code for fusion devices, and demonstrating the manufacturing method and procedures using full-scale segments of the TF coil structure. From the results of these activities, the JAEA confirmed that the quality control method of actual series TF coil structures complies with the JSME code. Therefore, the quality of structural materials and weld joints using gas tungsten arc welding (GTAW) satisfy the ITER requirements. In addition, the JAEA obtained knowledge regarding the welding deformation of the actual TF coil structures. This paper describes the results of these compliance and development activities for ITER TF coil structures. (author)
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