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Russian Metallurgy (Metally)

, Volume 2019, Issue 13, pp 1479–1482 | Cite as

Comparative Estimation of the Qualities of the Titanium Alloy Joints Made by Traditional Argon-Arc Welding and Innovative Arc Welding with Alternate-Pulsed Supply of Different Protective Gases

  • G. P. FetisovEmail author
  • R. G. Tazetdinov
  • A. S. Persidskii
  • N. O. Strizhevskaya
WELDING TECHNOLOGIES. SOLDERING

Abstract

The welded joints of VT20 and OT4-1 titanium alloys formed by an innovative method (alternate-pulsed supply of argon and helium) are shown to have smaller grains and a wider melting zone in comparison with traditional argon-arc welding due to a more effective mechanical and thermal action of an arc in the weldpool. In addition, the innovative joints have a higher plasticity, a smaller scatter of the hardnesses over the cross section, and a higher welding speed.

Keywords:

innovation arc welding protective gas alternate-pulsed supply of different gases argon helium titanium alloys gas distributor arc pressure 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • G. P. Fetisov
    • 1
    Email author
  • R. G. Tazetdinov
    • 1
  • A. S. Persidskii
    • 2
  • N. O. Strizhevskaya
    • 2
  1. 1.Moscow Aviation Institute (National Research University)MoscowRussia
  2. 2.Chernyshev Moscow Engineering EnterpriseMoscowRussia

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