5KATAYAMA S, NAITO Y, UCHIUMI S, et al. Penetration and porosity prevention mechanism in laser - arc hybrid welding[ C]//Proc. 3rd LIM. Munich: [ S. n. ], 2005. 193 -202.
6NILSSON K, KAPLAN A. CO2-1aser/pulsed MIG Hybrid Welding of High Strength Steel [ C ]//Proc. 9th NOLAMP. Trondheim: [ S. n. ] ,2003. 38 -42.
7FUHRMANN C, PETRING D, POPRAWE R. Recent results on high power CO2-and Nd: YAG laser-arc hybrid welding of thick steel plates [ C ]//Prec. 3rd LIM. Munich: [ S. n. ] ,2005. 185 - 192.
