[1] Dixon R D, Lewis G K. The influence of plasma during laser welding. Inter Congress on Appl, of LasersElectro-optics '83, Proc. of the Mater Proves Symp, Boston, USA 1983, Published by Laser Institute of America, Boston, USA,1983;38:44-49
[2] Ishide T. Fundamental study of laser plasma reduction method in high power CO2 laser welding. Proc of Laser Advanced Mater Procees '87, Osaka, High Temperature Society of Japan, 1987;15-17
[3] Sutliff D R, Mccay T D. Mccay M H. Welding Journal, 1992; (6):219-224
[4] Estill W B, Firmisano B D. Porosity decrease in laser welding of stainless steel using plasma control, Inter Congress on Appl. of lasersElectrooptics '83, Proc, of the Mater Proves Symp, Boston, USA. 1983;38:67-71
[5] Locke E V, Hoag E D. Hella R A. IEEE J Q E, 1980:8(2):L32-135
[6] Migamoto I, Maruo H, Arata Y. The role of assist gas in CO2 laser welding, Inter Congress on Appl. of lasersElectrooptics'83, Proc, of the Mater Proves Symp, Boston, USA 1983, Published by laser Institute of America,Boston, USA, 1984; 44; 68-75