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Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup
Ma, Jianguo1,2; Wu, Jiefeng1,2; Liu, Zhihong1,2; Wang, Rui1,2; Gu, Yongqi2; Fan, Xiaosong4; Ji, Haibiao3,4
2021-02-01
Source PublicationFUSION ENGINEERING AND DESIGN
ISSN0920-3796
Corresponding AuthorJi, Haibiao(jhb@ipp.ac.cn)
AbstractThis paper introduces key technologies and main advances in the development of the 1/8 vacuum vessel (VV) sector mockup of China fusion engineering test reactor (CFETR). The contour accuracy of each VV shell is controlled within +/- 2 mm through hot forming, solution treatment, and correction of each hyperboloid shell, and cold forming of the single-curved shell. The welding structure between the 1/8 sectors of CFETR VV on site is simulated by using the welding structure between two 1/16 VV sectors as a model. The narrow-gap TIG (NG-TIG) welding process is designed and explored in the sector welding of the 1/32 VV sector. Electron beam (EB) welding of the port stub is completed, and the weld quality meets the design requirement. The results of phased array ultrasonic testing (PAUT) technology reveal that the testing process meets RCC-MR technical requirements and solves the problems of full volume coverage (i.e., missed detection) and signal-to-noise ratio (i.e., misjudgment) of austenitic stainless steel welds. The automatic ray film arrangement trolley can achieve the automatic arrangement of the X-ray film between double shells when the VV is welded on-site. The measurement solution of three-dimensional complex space solves the problem of collimation positioning measurement during the welding, machining, and assembly of the 1/8 VV sector. The results of the study on the virtual assembly and reverse machining technology provide guidance for the actual assembly of the 1/8 VV sector. Finally, measurement and machining of the allowance are realized to solve the problem of numerical control machining of workpieces without a machining datum.
KeywordCFETR 1/8 vacuum vessel sector Fabrication
DOI10.1016/j.fusengdes.2020.112166
Indexed BySCI
Language英语
Funding ProjectChina National Magnetic Confinement Fusion Science Program[2015GB107003] ; Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01-001228]
Funding OrganizationChina National Magnetic Confinement Fusion Science Program ; Comprehensive Research Facility for Fusion Technology Program of China
WOS Research AreaNuclear Science & Technology
WOS SubjectNuclear Science & Technology
WOS IDWOS:000612434700003
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/120545
Collection中国科学院合肥物质科学研究院
Corresponding AuthorJi, Haibiao
Affiliation1.Anhui Prov Key Lab Special Welding Technol, Huainan 232063, Peoples R China
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
3.Lappeenranta Univ Technol, Lappeenranta 53810, Finland
4.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
First Author AffilicationChinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Ma, Jianguo,Wu, Jiefeng,Liu, Zhihong,et al. Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup[J]. FUSION ENGINEERING AND DESIGN,2021,163.
APA Ma, Jianguo.,Wu, Jiefeng.,Liu, Zhihong.,Wang, Rui.,Gu, Yongqi.,...&Ji, Haibiao.(2021).Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup.FUSION ENGINEERING AND DESIGN,163.
MLA Ma, Jianguo,et al."Key manufacturing technologies of the CFETR 1/8 vacuum vessel sector mockup".FUSION ENGINEERING AND DESIGN 163(2021).
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