Investigation of Fast-Flowing Processes of Heat and Mass Transfer during Arc Welding with a Melting Electrode under Conditions of Laser Coherent Radiation

Abstract:

The results of the development and manufacturing of a unique research complex for investigating fast-flowing processes of heat and mass transfer during arc welding with a melting electrode are presented. The advantages of the developed complex over traditionally used ones are shown using cinema and video cameras by shadowing the image of heat and mass transfer of a metal. Studies of fast processes using high-speed video recording require powerful backlighting, such as a scattered laser beam, which enhances the visualization of the observed object, namely, the process of melting and transferring each electrode metal droplet under conditions of intense light emission from the electric arc. The article contains explanatory diagrams, control algorithms, video frames of a separate welding microcycle, and examples of recorded oscillograms and the graphical representations of the changes in their quantitative values.

• Periodical: Materials Science Forum (Volume 938)
• Pages: 119-123
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.938.119
• Online since: October 2018
• Authors: Y.N. Saraev*, Alexey Lunev, A.S. Kiselev, Anton S. Gordynets, V.M. Semenchuk
• Keywords: Energy Parameters, Heat Transfer, Mass Transfer, Melting Electrode, Welding

References

[1] VA Karkhin, Thermal processes in welding,, 2 nd ed., recycled and additional, St. Petersburg. Publishing house of Polytechnic University, 2015, 572 p.

[2] BE Paton, SYu Maksimov, VS Sidoruk, YN Saraev, Svarochnoe proizvodstvo,12, pp.3-11 (2014).

[3] YN Saraev, VP Bezborodov, SV Gladkovsky, and NI Golikov The ways of reliability enhancement of welded metal structures for critical applications in the conditions of low climatic temperatures,, AIP Conference Proceedings, 1783, P. 020195 (2016).

DOI: 10.1063/1.4966489

[4] YN Saraev, Special issue of World J. Engineering, 8, P. 989 (2011).

[5] YN Saraev, Svarochnoe proizvodstvo, 1, pp.4-7 (2002).

[6] YN Saraev, Avtomaticheskaya svarka, 12, pp.16-23 (1988).

[7] VM Yermachenko, AP Kuznetsov, VN Petrovskiy, et al., Laser Physics, 21 (8), p.1530 – 1537 (2011).

[8] YN Saraev et al.. Research studies to improve the reliability of metal structures of responsible use, operating under extreme loads and low climatic temperatures, in High technology in the RNF projects. Siberia, edited by SG Psakhie and YP Sharkeev (NTL, Tomsk 2017, ISBN 978-5-89503-607-5), pp.134-202.

[9] YN Saraev et al. Svarochnoe proizvodstvo, 2, pp.3-13 (2018).

[10] U Diltai, L Stein, K Veste, F Reich, Avtomaticheskaya svarka, 10 – 11, p.151 – 157 (2003).