Transition of W7-X non-planar coils from manufacturing to assembly

The main magnetic field of Wendelstein 7-X fusion experiment (W7-X) at Max-Planck-institut fur Plasmaphysik Greifswald, Germany will be provided by 50 non-planar coils and supported by 20 planar coils. The non-planar coils were delivered by a consortium (CON) consisting of Babcock Noell GmbH Germany (BNG) and ASG Superconductors S.p.A. Italy (ASG). The coil production ended with the delivery of the last non-planar coil in March 2008 at the manufacturing branch of BNG in Zeitz, Germany. The construction of the coils was characterised by design changes, many rework actions and resulting time delays. Due to these numerous adjustments and changes a continuous improvement process was needed. This paper will give an overview about the transition of the non-planar coils from the acceptance tests at the manufacturer site to the beginning of the assembly at lPP. Furthermore this report will highlight technical interfaces in the period of transition. (C) 2008 Elsevier B.V. All rights reserved.