Abstract
The article describes the results of studies on the fracture of tungsten electrodes with an increased arc discharge stabilization rate during the submerged arc welding of titanium structures. The complexity of welding is due to thick-walled parts and a current rate of more than 1600 A. Under this mode, the changes in the geometry of a penetrated electrode and destruction of its working zone occur. It results in major defects—formation of higher melting inclusions in welding joints. The X-ray analysis was used to study welding joints for Ti–Al–Zn. The influence of welding modes and chemical composition of electrodes with 1.1–1.4% LaO and Y2O3 added on the erosion wear and destruction of the working edge of electrodes as well as the presence of tungsten inclusions in welding joints were identified. The chemical composition of the electrode material was tested by means of spectral analysis. Using the research results, the stages of the process reflecting the mechanism of destruction of lanthanum/yttrium oxide tungsten electrodes in the submerged arc welding of thick-walled titanium structures were described.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Astafeva NA (2016) Welding and closely related technologies in aircraft building. In: Aircraft building and transport of Siberia. In: Proceeding of the 6th All-Russian Scientific Conference Irkutsk, p 67
Astafev AG, Astafeva NA (2003) Production of titanium strong frames by means of submerged arc welding. Weld Sib 12:6–8
Astafev AG (2002) Tungsten submerged arc welding. RF Patent 2,182,061, V23K9/167, 2000111617/02, Aug 2002
Dolotov BI, Cherepanov MD (2002) Calculation of a hemicylindrical arc of the toroidal electrode. Weld Prod 4:3–5
Dolotov BI, Muravyev VI, Maryin BI et al (1996) Higher resistant tungsten electrodes. Weld Prod 10:23–26
Cherepanov MD, Dolotov BI, Muravyev VI (2000) Changes in geometry of the tungsten electrode arc under the own electromagnetic field. Weld Prod 6:3–5
Dolotov BI (2008) Erision resistance of tungsten electrodes in high current welding arcs. In: Material engineering of higher-melting compounds. Achievements and challenges. In: Proceedings of the International Scientific Conference, Kiev, p 152
Percitz LM, Gritsenko MS, Sidorov AR (1979) Evaluation of factors influencing the long resistance of tungsten electrodes and reliability of arc agitation during the gas tungsten arc welding process. Weld Nucl Technol 1:14–16
Dolotov BI (2010) Improvement of efficiency of gas tungsten welding of frame and panel titanium structures of aircrafts. Komsomolsk-na-Amure
GOST 23949-80 (2018) Tungsten non-consumable welding Electrodes. Technical conditions. Available via. http://docs.cntd.ru/document/1200004880. Accessed 02 March 2018
Dolotov BI (2010) Improvement of efficiency of processes of welding with tungsten electrode in inert gases the titanium beam and panel structures of aircraft. Moscow
Ilyin AA, Kolachev BA, Polkin IS (2009) Titanium alloys. Composition, structure, properties. VI-AS-MATI, Moscow
Konovalov AV, Kurkin AS, Makarov EL et al (2007) Theory of welding processes: a course book for universities. MSTU, Moscow
Redchitz VV (1983) Analytical evaluation of probability of welding gas bubbles formation. Autom Weld 9:32–35
Redchitz VV, Nikiforov GD (1977) Kinetics of gas bubble growth in weld pools. Phys Chem Mater Process 2:123–130
Dolotov BI, Muravyev VI, Maryin BI et al (1988) Mixture of metal in weld pools during the tungsten submerged arc welding. Weld Prod 2:15–16
Merkulov VI, Bratukhin AG (2000) Peculiarities of welding of high responsible aircraft titanium structures. Aviat Ind 1:43–48
Anisimov VV, Bukarov VA (1989) Evaluation of the heat balance of tungsten electrodes during the argon tungsten welding process. Issues Nucl Sci Technol 9:31–39
Katayama S, Mizunal M, Matsunaeva A (2001) Liquid flow inside molten pool during TIG welding and formation mechanism of bubble and porosity. In: Proceedings of the 7th International Welding Symposium, Kobe, Yapan Welding Society, p 125
Tanaka M, Ushlo M, Lowke JJ (2005) Numerical analysis for weld formation using free-burning helium arc at atmospheric pressure. JSME Int J Ser 3:397–404
Mechev VS, Eroshenko AE (1984) Parameters of the arc column near the part during the argon tungsten arc welding. Autom Weld 1:25–30
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Switzerland AG
About this paper
Cite this paper
Astafeva, N. (2019). Tungsten Electrode Fracture in Submerged Arc Welding Process. In: Radionov, A., Kravchenko, O., Guzeev, V., Rozhdestvenskiy, Y. (eds) Proceedings of the 4th International Conference on Industrial Engineering. ICIE 2018. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-95630-5_269
Download citation
DOI: https://doi.org/10.1007/978-3-319-95630-5_269
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-95629-9
Online ISBN: 978-3-319-95630-5
eBook Packages: EngineeringEngineering (R0)