Product Code: ICAL09_P133

Comparative Study on the Application of Fiber Laser and Slab CO2 Laser in Welding DP780 High Strength Steel Plate
Authors:
Lijun Xin, College of Laser Engineering, Beijing Univ. of Technology; Beijing Peoples Republic of China
Tao Huang, Beijing University of Technology and Baoshan Iron & Steel CO., LTD; Beijing Peoples Republic of China
Jun Shao, Beijing Univ. of Technology and IPG (Beijing) Fiber Laser Technology CO., LTD; Beijing Peoples Republic of China
Zhiyong Wang, College of Laser Engineering, Beijing Univ. of Technology; Beijing Peoples Republic of China
Presented at ICALEO 2009

Welding experiments of high strength steel plate produced by Baosteel with IPG YLR-6000-ST2 fiber laser and Slab CO2 laser have been processed. The differences of laser in practical application have been investigated through the contrast of parameters and welding seam dynamic performances. It is showed that the maximum welding speed of fiber laser is 2~3 times faster than Slab CO2 laser; the welding speed of fiber laser P=1300W is the same as Slab CO2 laser P=3500W;the samples of fiber laser have better depth-to-width ratio; the fit-up gap adjustability of fiber laser is better than Slab CO2 laser.