STUDY ON ENERGY EFFICIENCY OF A-TIG WELDING OF STAINLESS STEELS USING INDIVIDUAL FLUX-OXIDES. Part 2. INFLUENCE OF THERMODYNAMIC AND PHYSICO-CHEMICAL PROPERTIES OF FLUX-OXIDES


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Abstract

This paper presents the results of studies on the influence of thermodynamic and physico-chemical properties of individual flux-oxides on the energy efficiency of the arc A-TIG welding of stainless steel CrNi18-10. The obtained results of the research allowed to reveal the criteria for evaluating the energy efficiency of the arc A-TIG welding on the depth of penetration of the welded metal and to determine the impact of thermodynamic and physico-chemical properties of individual flux oxides on the energy efficiency of the penetration capability of the welding arc for different welding energies. The requirements to thermodynamic and physico-chemical properties of individual fluxes-oxides are also revealed, which provide high energy efficiency of arc penetration capability during A-TIG welding.

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About the authors

Rustam Mannapovich Saidov

Institute of Material Sciences, SPA “Physics-Sun” Academy of Science of Uzbekistan

Email: saidov_r@yahoo.com
PhD, senior research Tashkent, Uzbekistan

Durdona Rustamovna Komilova

Institute of Material Sciences, SPA “Physics-Sun” Academy of Science of Uzbekistan

Email: komilova78@mail.ru
senior research Tashkent, Uzbekistan

Mario Kusch

Chemnitz University of Technology

Email: mario.kusch@mb.tu-chemnitz.de
Dr.-Ing., Department of Manufacturing and Welding Engineering Germany

Peter Mayr

Chemnitz University of Technology

Email: peter.mayr@mb.tu-chemnitz.de
professor, Dr., Department of Manufacturing and Welding Engineering Germany

Kevin Hoefer

Chemnitz University of Technology

Email: kevin.hoefer@mb.tu-chemnitz.de
Dipl.-Ing., Department of Manufacturing and Welding Engineering Germany

References

  1. Saidov R., Komilova D., Kusch M., Mayr P., Hoefer K. Study on energy effi of A-TIG welding of stainless steels using individual floxides. Part 1: Evaluati of the A-TIG arc energy effi to the weld penetrati depth. Computational nanotechnology. 2019. № 2. Р. 19-24.
  2. Saidov R.M., Kusch M., Mayr P., Hoefer K., Akhadov J., Komilova D., Mukhitdinov Z. Study of influence of oxide’s physico-chemical properties to the formation welding beads during A-TIG welding of stainless steels (in Russian). Computational nanotechnology. 2016. № 4. Р. 10-20.
  3. http://chemister.ru/Database/list-substances.php?substance=F
  4. Samsonov G.V. Physico-chemical properties of oxides (in Russian). Reference book. Metallurgy. 1978, 465 p.
  5. Savitskiy М.М., Leskov G.I. Mechanism of electronegative elements on arc penetration property with tungsten cathode//Automatic welding. 1980, № 9, Р. 17-23.
  6. Tanaka M., Shimizu T., Terasaki H., Ushio M., Koshi-ishi F., Yang C.L. Effects of activating flux on arc phenomena in gas tungsten arc welding. Science and Technology of Welding and Joining. 2000. Vol. 5. № 6. Р. 397-402.

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