[1] PATON B E. Automatic Welding, 1974, 27(6): 1.
[2] LUCAS W, HOWSE D. Welding and Metal Fabrication, 1996, 3(1): 11.
[3] PAULO J. J. of Materials Processing Technology, 2000, 9: 260.
[10] Li Junyue, Li Zhiyong, Li Huan, et al. Chinese Journal of Mechanical Engineering, 2004, 17(2): 315.
[12] Sforza P, De B D. NDT & E International, 2002, 35: 37.
