INVESTIGATION OF THE INFLUENCE OF THE CHEMICAL COMPOSITION OF THE COATING ON TECHNOLOGICAL AND MECHANICAL INDICATORS BY APPLYING DEFMOT

Nikolay Hristov; Nikolay Tonchev; Victor Georgiev

Scientific paper ID 2444 : 2023/3

INVESTIGATION OF THE INFLUENCE OF THE CHEMICAL COMPOSITION OF THE COATING ON TECHNOLOGICAL AND MECHANICAL INDICATORS BY APPLYING DEFMOT

Nikolay Hristov, Nikolay Tonchev, Victor Georgiev

The research adapted a five-factor problem with the DEFMOT computational approach [3] to a four-factor one using published experimental data [7] regarding the influence of coating component combinations on technological and mechanical performance. A methodology for the transformed adaptation from 5D to 4D has been compiled. The example of the effect of plastering [7] is used to illustrate the adapted approach. Analysis and optimization were performed after the transformation. An optimal composition was determined, guaranteeing the highest impact strength and the highest stability at a graphite quantity of 1 mass percent.

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DEFMOT Моделиране Регресионен анализ Оптимизация.DEFMOT modeling Regression analysis Optimization.Nikolay Hristov Nikolay Tonchev Victor Georgiev

BIBLIOGRAPHY

[1] J. Edwin Raja Dhas, S. Jenkins Hexley Dhas, A Review on Optimization of Welding Process, Procedia Engineering, Volume 38, 2012, Pages 544-554.

[2] Tontchev, N., Materials science, Effective solutions, and technological variants, Lambert, Academic Publishing, 2014, 142 р

[3] Tontchev, N., Gaydarov, V., N. Hristov, N., Analyzes and applications through the computational approach DEFMOT, Sofia, 2022, 167 p. (in Bulgarian).

[4] Sumit Mahajan, Rahul Chhibber, Investigation on slags of CaO-CaF2-SiO2- Al2O3 based electrode coatings developed for power plant welds, Ceramics International, Volume 46, Issue 7, 2020, Pages 8774-8786.

[5] Rowlands, H. and Antony, J. (2003), ”Application of design of experiments to a spot welding process”, Assembly Automation, Vol. 23 No. 3, pp. 273-279.

[6] Uroš Lukić, Radica Prokić – Cvetković, Olivera Popović, Bratislav Rajičić, Impact of welding parameters on the stability of gas metal arc welding process, 18th International Research/Expert Conference ”Trends in the Development of Machinery and Associated Technology” TMT 2014, Budapest, Hungary 10-12 September, 2014.

[7] Letyagin I.Y., Mathematical modeling and fundamentals of scientific research in welding, part I. Statistical processing and experiment planning, Perm, 2014, 139 pages (in Russian)