Results of HTS Current Lead Series Manufacturing for ITER

The production phase of HTS Current Leads (CL) started in 2015. Many years of work involving experts and engineers from all over the world preceded it. Since, 66 CL were manufactured and tested (20 for the Toroidal Field Coils, 26 for the Poloidal Field Coils/Central Solenoid, and 20 for the Correction Coils) by ASIPP and contractors in China. For each of the leads, hundreds of unique parts were produced, and more than a thousand activities performed. Over 5000 HTS stacks were manufactured, and low temperature measurements, including performance tests of the CL in nominal operating conditions, were carried out. The article presents the results of the CLs manufacturing data statistical analysis. The discussion includes quality control during CLs manufacturing and its main monitoring, as well as data storage tool – the manufacturing data base. The study describes the issues we faced during manufacturing and tells about the insights gained.