Study of Wind Velocity Impact upon the Quality of Shielding and upon the Thermal Processes under MAG Welding

Article Preview

Abstract:

In the given paper we consider the impact of wind velocity upon the active shielding gas flow and changes of thermal processes in the MAG welding area. The authors completed numerical simulation of consumable electrode welding under traditional and two-jet gas shielding. It was established that application of two-jet gas shielding for MAG welding increases the hardness of the shielding gas jet and reduces wind-related displacement of thermal fields in the welded item. This ensures more qualitative shielding of the welding area under the windy conditions and uniform heat distribution in the welded item which leads to more homogeneous structure of weld and HAZ metal in comparison to the traditional (one-jet) gas shielding.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

253-257

Citation:

Online since:

June 2015

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Popravka D.L., Khvorostov N.Е. Gas shielded arc welding outdoors, Moscow, Machinebuilding. (1979).

Google Scholar

[2] Fedorenko G.А., Ivanova I.V., Sinyakov К.А. Improvement of the technological process of gas shielded welding in the wind. Welding production. No. 1 (2010) pp.6-13.

Google Scholar

[3] Potapevsky A.G., Saraev Yu.N., Chinakhov D.A. Consumable electrode gas shielded welding of items. Engineering and technology of future: monograph/ A.G. Potapevsky, Yu.N. Saraev, D.А. Chinakhov; Yurga Institute of Technology, Tomsk: Tomsk polytechnic University Press, (2012).

DOI: 10.17580/em.2017.02.11

Google Scholar

[4] Novikov О.М., Rad'ko E.P., Ivanov E.N., Ivanov N.S. Development of a new technology of shielding gases arc welding on the basis of gas flows pulsations and ionization potentials. Welder-professional. No. 6 (2006) p.10–13, 16.

Google Scholar

[5] Welding and welded materials: In 3 v. V. 1. Weldability of materials: reference book, edited by E.L. Makarov, Moscow, Metallurgy, (1991).

Google Scholar

[6] Novozhilov М.N. Fundamentals of metallurgy of arc welding in gases, Moscow, Machinebuilding. (1979).

Google Scholar

[7] Chinakhov D.A. Role of gas-dynamic impact of a shielding gas jet on welding processes in consumable electrode welding, Yurga Institute of Technology, Tomsk: Tomsk polytechnic University Press, (2011).

DOI: 10.4028/www.scientific.net/amr.1040.850

Google Scholar

[8] Chinakhov D.A. Gas Dynamic Control of Properties of Welded Joints from High Strength Alloyed Steels. China Welding. Vol. 23 No. 3 (2014) pp.27-31.

Google Scholar

[9] Chinakhov D.A., Vorobyov A.V., Tomchik A.A. Simulation of active shielding gas impact on heat distribution in the weld zone. Materials Science Forum. Vol. 762 (2013). Pp. 717-721.

DOI: 10.4028/www.scientific.net/msf.762.717

Google Scholar

[10] 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) p.188–194.

DOI: 10.4028/www.scientific.net/amm.379.188

Google Scholar

[11] Martyushev N.V., Semenkov I.V. The possibility of casting surface alloying by nanopowders, Advanced Materials Research, Vol. 880 (2014) p.272–275.

DOI: 10.4028/www.scientific.net/amr.880.272

Google Scholar

[12] Krampit, A.G., Krampit, N.U., Krampit, M.A. Mechanical properties of welded joints in welding with pulsed arcs, Applied Mechanics and Materials, Vol. 379 (2013) p.195–198.

DOI: 10.4028/www.scientific.net/amm.379.195

Google Scholar

[13] Pavlov N.V., Kryukov A.V., Zernin E.A. Distribution of thermal fields in welding in a gas mixture with pulsed electrode wire feed, Welding International, Vol. 26 Issue 6 (2012) pp.483-484.

DOI: 10.1080/09507116.2011.606167

Google Scholar

[14] Psakhie S., Shilko E., Smolin A., Astafurov S., Ovcharenko V. Development of a formalism of movable cellular automaton method for numerical modeling of fracture of heterogeneous elastic-plastic materials, Frattura ed Integrita Strutturale, Vol. 24 (2013).

DOI: 10.3221/igf-esis.24.04

Google Scholar

[15] Chinakhov D.A., A.V. Vorobyev, Yu.M. Gotovshchik Simulation of Wind Influence on the Thermal Processes in Gas-Shielded Welding, Applied Mechanics and Materials, Vol. 682 (2014) pp.91-95.

DOI: 10.4028/www.scientific.net/amm.682.91

Google Scholar