6Yapp D, Blackman S A. Recent developments in high productivity pipeline welding [J]. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2004, XXVI(1):89-97.
7Bonigon C, Geertsen C. Orbital laser welding : A major advance in offshore pipelaying [C]. Proc Con f Deep Offshore Technology, New Orleans, USA, 1998.
8Hudson R S, Carnes R W, Nichols S P. Advances in homopolar welding of API line pipe for deepwater applications [J]. SPE Production & Facilities, 1999, 14(2):94-101.
9Howse D S, Scudamore J R, Booth S G. The evolution of Yb fibre laser/MAG hybrid processing for welding of pipelines[C]. The Proceedings of The Fifteenth International Offshore and Polar Engineering Conference. Osala, Japan, 2005, 1:90-95.
10Howse D S, Scudamore R J, Booth G S, et al. Development of the laser/MAG hybrid welding process for land pipeline construction [C]. Proc. Application and Valuation of High- Grade Pipelines in Hostile Environments, Pacifico Yokohama, Japan, 2002:763-783.
