The Paton Welding Journal, 2015, №10



2015 №10 (02)

DOI of Article 10.15407/tpwj2015.10.03

2015 №10 (04)

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The Paton Welding Journal, 2015, #10, 19-24 pages
 

Laser-arc welding of high-strength steels with yield strength of more than 700 MPa

V.D. Poznyakov, V.D. Shelyagin, S.L. Zhdanov, A.A. Maksimenko, A.V. Zavdoveev And A.V. Bernatsky

E.O. Paton Electric Welding Institute, NASU. 11 Bozhenko Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
 
 
Abstract
For the first time the prospects of using laser heat sources, namely for hybrid laser-arc welding, which allows improving the strength values of welded joints and their resistance to brittle and delayed fracture due to transformation of thermal cycle of welding, characteristic for arc processes, are shown for high-strength low-alloyed steels of small thicknesses on the example of steel 14KhGN2MDAFB. 8 Ref., 2 Tables, 3Figures.
 
Keywords: hybrid laser-arc welding, high-strength steel, welding thermal cycles, structure, properties
 
 
Received:                01.07.15
Published:               01.12.15
 
 
References

1. Grigoriants, A.G., Shiganov, I.N., Chirkov, A.M. (2004) Hybrid technologies of laser welding: Manual. Moscow: N.E. Baumana MGTU.
2. Shelyagin, V.D., Khaskin, V.Yu., Garashchuk, V.P. et al. (2002) Hybrid CO2-laser and CO2 consumable-arc welding. The Paton Welding J., 10, 35-37.
3. Kah, P., Salminen, A., Martikainen, J. (2010) Laser-arc hybrid welding processes (Review). Ibid., 6, 32-40.
4. Shelyagin, V.D., Khaskin, V.Yu., Siora, A.V. et al. (2007) Gas-shielded laser and laser-arc welding of steels. Ibid., 1, 27-30.
5. Atabaki, M., Ma, J., Yang, G. et al. (2014) Hybrid laser/arc welding of advanced high-strength steel in different butt joint configurations. Materials and Design, 54, 573-587. https://doi.org/10.1016/j.matdes.2014.08.011
6. Unta, A., Lappalainena, E., Salminen, A. (2013) Autogenous laser and hybrid laser arc welding of T-joint low alloy steel with fiber laser systems. Phys. Proc., 41, 140-143. https://doi.org/10.1016/j.phpro.2013.03.062
7. Sathiya, P., Mishra, M.K., Shanmugrarajan, B. (2012) Effect of shielding gases on microstructure and mechanical properties of super austenitic stainless steel by hybrid welding. Materials Design, 33, 203-215. https://doi.org/10.1016/j.matdes.2011.06.065
8. Musiyachenko, V.F., Mikhoduj, L.I. (1987) Arc welding of high-strength alloyed steels. Moscow: Mashinostroenie.

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