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VACUUM ›› 2023, Vol. 60 ›› Issue (6): 78-83.doi: 10.13385/j.cnki.vacuum.2023.06.13

• Vacuum Acquisition System • Previous Articles     Next Articles

Study on the Forming Technology of Boat-shaped High Frequency Cavity Shell

XING Yin-long1,2, WU Jie-feng1,3, PEI Shi-lun4, LIU Zhi-hong1, LI Bo1,3, LIU Zhen-fei3,5, MA Jian-guo1,5   

  1. 1. Institute of Plasma Physics Chinese Academy of Sciences, Hefei 230031, China;
    2. University of Science and Technology of China, Hefei 230026, China;
    3. Hefei Juneng Electric Physics High Technology Development Co., Ltd., Hefei 230036, China;
    4. China Institute of Atomic Energy, Beijing 102413, China;
    5. Huainan New Energy Research Center, Huainan 232000, China
  • Received:2023-01-30 Online:2023-11-25 Published:2023-11-27

Abstract: The high-power proton beam accelerator is widely used in basic physics, nuclear industry, home safety and other fields, and the high-power waveguide RF cavity is an extremely important component. The ship-shaped RF cavity has the highest no-load Q value and shunt impedance, which is a good choice for GeV proton beam accelerator. For the manufacture of ship-shaped copper RF cavity, the main difficulty lies in the forming of the complex contour shell of the cavity,thus the detailed forming process research is developed in this work. Through the PAM-STAMP 2G simulation software, the die forming numerical simulation for the complex contour shell of the high frequency cavity is carried out, and the thinning amount, residual stress and forming rebound of the shell during the elliptical arc forming process are simulated respectively, which provides a theoretical basis for the actual die forming. The high frequency cavity elliptical shell forming mold designed based on the simulation results has successfully implemented the actual molding of the elliptical arc.

Key words: boat-shaped RF cavity, complex contour shell, die forming, numerical simulation, PAM-STAMP 2G

CLC Number:  TB77;TB74

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