Actual Problems in Machine Building 2015 No. 2

Актуальные проблемы в машиностроении. 2015. №2 Инновационные технологии в машиностроении ____________________________________________________________________ 147 17. Chinakhov D.A. Calculation of Gas-dynamic Impact of the Active Shielding Gas on the Electrode Metal Drop in Gas Jet Shielded Welding // Applied Mechanics and Materials. – Vol. 379 (2013). – Pp. 188-194. 18. Chinakhov D.A., Zuev A.V., Filimonenko A.G. Gas-dynamic Impact of a Shielding Gas Jet on the Drop Transfer When Welding with a Consumable Electrode // Advanced Materials Research Vol. 1040 (2014) pp 850-853. www.scientific.net/AMR.1040.850 FEATURES OF USING FLUX CORED WIRE FOR WELDING WORN-OUT PART SURFACES IN CO 2 Chinakhov D.A. , Ph.D. (Engineering), Associate Professor, e-mail: chinakhov@tpu.ru Grigorieva E.G. , Ph.D. student, e-mail: sedasch@mail.ru Yurga Institute of Technology, TPU Affiliate, 26 Leningradskaya st., Yurga, 652055, Russian Federation Abstract Specific features of welding and surfacing by a flux cored wire of worn-out part surface are considered in the paper. Specific features of metal melting and transfer during welding and surfacing by a flux cored wire and the influence of the core composition, the mode of welding and the structure of a flux cored wire are described. The efficiency of molten metal protection and technological parameters of flux cored welding are determined by simultaneous melting of a metal jacket and the powder core. Technological recommendations on the elimination of negative phenomena in the process of flux cored wire welding are provided. Keywords welding, welding materials, flux cored wires