The Technology of Mig-Mag Welding with Low-Frequency Modulation of Arc Current

Abstract:

The given paper suggests a new approach towards implementation of arc current low frequency modulating method in MAG, MIG-welding. The process facilitates controlling heat and crystallization processes, regulates the time of the weld pool formation and crystallization. Theoretical study allowed formulating the main criteria of receiving strong permanent joints to produce structures with advanced reliability as it creates favorable conditions for producing a more balanced deposited metal structure and reducing the heat-affected zone. Regulating the time of weld pool formation and crystallization improves weld formation and increases labor productivity when welding sheet metals.

• Periodical: Applied Mechanics and Materials (Volume 682)
• Pages: 426-430
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.682.426
• Online since: October 2014
• Authors: S.A. Solodsky*, N.Yu. Lugovtsova, I.S. Borisov
• Keywords: Crystallization, Low Frequency Pulsed Arc Welding Processes, Mechanized Arc Welding with a Consumable Electrode in the Atmosphere of Shielding Gas

References

[1] Saraev Y. Adaptive pulse-arc welding methods for construction and repair of the main pipelines. Proceedings of The 2nd South-East European IIW International Congress Welding – HIGH-TECH Technology in 21st century,. Sofia, Bulgaria, October 21st-24th 2010, p.174.

[2] Chinakhov D. A. Study of thermal cycle and cooling rate of steel 30ХГСА single-pass weld joints / Applied Mechanics and Materials. – Vols. 52-54. – 2011. – pp.442-447. - Mode of access: http: /www. scientific. net/AMM. 52-54. 442.

DOI: 10.4028/www.scientific.net/amm.52-54.442

[3] Chinakhov D.A., Agrenich E.P. Computer simulation of thermo-mechanical processes at fusion welding of alloyed steels / Materials Science Forum. – Vols. 575-578 (2008). – Pp. 833-836.

DOI: 10.4028/www.scientific.net/msf.575-578.833

[4] Shigaev T.G. On the terminology of the welding with modulated current / Welding production. – 1980. - №7. - P. 40.

[5] Patent for invention № 2293630 (RF). The method of mechanized welding in СО2 with low-frequency modulation of the weld pool. Fedko V.T., Brunov O.G., Solodsky S. A, Kryukov A.V., Sednev V.V. Invention priority July, 14th , 2005 V23K 9/33. Published 10. 04. 2007. Bull. . №10.

[6] Paton B.E., Lebedev V.A., Pitchak B. G, Poloskov S.I. Evolution of the pulse wire feed systems for welding and surfacing. Welding and diagnostics. 2009. № 3. pp.46-50.

[7] Solodskii S. A, Brunov O.G., Zelenkovskii A.F. Аutomated system for controlling the process of CO2 welding with pulsed wire feed and welding current modulation. Welding International. 2012. Т. 26. № 4. р. 314−317.

DOI: 10.1080/09507116.2011.606159

[8] Lebedev V.A. Creating mechanized arc-welding equipment with pulsed electrode supply. Russian engineering research. 2009. т. 29. № 2. с. 131-135.

DOI: 10.3103/s1068798x09020063

[9] Brunov O.G., Fed'ko V.T., Solodskii S.A. Тransfer of electrode metal in welding with the pulsed feed of welding wire. Welding International. 2007. Т. 21. № 1. С. 50−54.

DOI: 10.1533/wint.2007.3740