NG-TIG welding technology research on 1/8 Sector of CFETR vacuum vessel

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Changyang Li ◽

Huapeng Wu ◽

Harri Eskelinen ◽

Haibiao Ji

Keyword(s):

Computer Aided Design ◽

Fusion Reactor ◽

Mechanical Design ◽

Industrial Robot ◽

Parallel Robot ◽

Tig Welding ◽

Inert Gas ◽

Vacuum Vessel ◽

Content Type ◽

Simulation And Optimization

Purpose This paper aims to present a detailed mechanical design of a seven-degrees-of-freedom mobile parallel robot for the tungsten inert gas (TIG) welding and machining processes in fusion reactor. Detailed mechanical design of the robot is presented and both the kinematic and dynamic behaviors are studied. Design/methodology/approach First, the model of the mobile parallel robot was created in computer-aided design (CAD) software, then the simulation and optimization of the robot were completed to meet the design requirements. Then the robot was manufactured and assembled. Finally, the machining and tungsten inert gas (TIG) welding tests were performed for validation. Findings Currently, the implementation of the robot system has been successfully carried out in the laboratory. The excellent performance has indicated that the robot’s mechanical and software designs are suitable for the given tasks. The quality and accuracy of welding and machining has reached the requirements. Originality/value This mobile parallel industrial robot is particularly used in fusion reactor. Furthermore, the structure of the mobile parallel robot can be optimized for different applications.

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The key technology research of electron beam welding in CFETR vacuum vessel collar

Fusion Engineering and Design ◽

10.1016/j.fusengdes.2018.12.059 ◽

2019 ◽

Vol 139 ◽

pp. 14-18 ◽

Cited By ~ 5

Author(s):

Zhihong Liu ◽

Jiefeng Wu ◽

Xiaosong Fan ◽

Qiuyue Xiong ◽

Jianguo Ma

Keyword(s):

Electron Beam ◽

Electron Beam Welding ◽

Vacuum Vessel ◽

Technology Research ◽

Key Technology

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Welding technology R&D on port joint of JT-60SA vacuum vessel

Fusion Engineering and Design ◽

10.1016/j.fusengdes.2013.01.100 ◽

2013 ◽

Vol 88 (9-10) ◽

pp. 1916-1919 ◽

Cited By ~ 3

Author(s):

Y.K. Shibama ◽

K. Masaki ◽

S. Sakurai ◽

K. Shibanuma ◽

A. Sakasai ◽

...

Keyword(s):

Vacuum Vessel ◽

Welding Technology

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Welding Technology Research for the Train Bogie

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.784 ◽

2013 ◽

Vol 423-426 ◽

pp. 784-787

Author(s):

Gang Wang ◽

Zhi Gang Chen

Keyword(s):

High Resistance ◽

Weld Joint ◽

Welded Joint ◽

Welding Process ◽

Technology Research ◽

Process Scheme ◽

High Quality ◽

Process Testing ◽

Welding Technology ◽

High Fatigue

Train bogie weld joint requirements with well toughness, high fatigue resistance and high resistance to overload. This article analied the weldability of SMA490BW steel, Combining with the characteristics of train bogie structure, a welding process scheme which had been used in practical productionwas worked out . Process testing and assessment results showed the process can obtain high quality welded joint.

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