Speaker
Jianguo Ma
(Institute of Plasma Physics)
Description
With the development of CFETR engineering design, a full-scale sector prototype of vacuum vessel has been carried out as one of the major R&D projects. The welding structure between vacuum vessel sectors in field assembly is modeled in this prototype, and NG-TIG is taken for an applicable welding strategy with small welding deformation, high-quality welds and excellent adaptability to the structure. All-position welding process test including flat position, vertical position and over-head position are launched, then relevant test results are obtained including non-destructive testing, mechanics performance testing, macro and micro weld detection, permeability testing, and the optimal process parameters. All-position welding system solutions are given in this paper, and finite element analysis by SYSWELD is executed and the results are compared with the actual measurements.
Co-authors
Jianguo Ma
(Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, Anhui 230031, China)
Jiefeng Wu
(Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, Anhui 230031, China)
Zhihong Liu
(Institute of Plasma Physics, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, Anhui 230031, China)
