Research of Laser Welding for Hot Rolling Si-Steel Strip

Abstract:

Aim to the question of laser welding easy rapture of hot rolling Si-steel strip. Utilize the Trumph TLF12000 fast-flow CO2 laser, and the method of laser welding, laser welding with filling wire and laser welding with normalize, the laser welding characteristic and mechanical performance of 50ww600 hot rolling Si-steel strip have been studied experimentally.The technology of improving the welding performance has been probed into.It include that the softing of laser welding lead to break easily. The question may be solved by the method of laser welding with filling wire.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 1484-1487
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.1484
• Online since: June 2012
• Authors: Ru Tao Zhong, Zhi Jun Huang, Liang Wang
• Keywords: Filling Wire, Hot Rolling Strip Steel, Laser Welding, Si-Steel, Welding Softing

References

[1] Li Zhenhe,Pan Weipan,Chen Jiarui.The application of laser-beam welder in Baosteel pickling line.Steel rolling, 2001,18(2):42-43

[2] Wang chunming,Hu Lunji,Hu Xiyuan. Pilot Study of Hot Rolling Silicon Steel Sheet'S Laser Cutting,Welding and Heat Treating Technology.Applied laser,2001,21(3):155-158

[3] Liu Jianhua,Zhang Qunli,Hu Lunji. New technology of on-line laser joining for hot-rolled high silicon steel sheets. Laser Tecnology,2004.2,28(1):16-19

[4] He Zhongzhi.Electrical steel.Beijing:Metallurgical Industry Press,(1997)

[5] Z.Li,D.Wu. Mechanical Properties in an Inter-critically Heat-treated Bainite-transformed 2%Si Steel.ACTA Metallurgica Sinica,2004,17(5):725~731