Mathematical analysis of the influence of the flux-cored wire chemical composition on the electrical parameters and quality in the underwater wet cutting

• Autorzy: Parshin S. , Levchenko A. , Wang P. , Maystro A.

Identyfikatory

DOI

10.2478/adms-2021-0006

• Języki publikacji: EN

Abstrakty

EN

The paper presents research in the field of underwater wet cutting with the use of flux-cored wires in order to improve the quality and performance. The research has resulted into the development of gas and slag systems for flux-cored wires and determination of , optimal parameters for cutting stability and quality. The underwater wet cutting mechanism is a cyclical process with the formation of periodic keyholes in metal, and it consists of operating and idle cycles. Efficiency of the cutting process can be determined by analyzing cycle times, welding current, voltage, power and a number of short circuits. To assess the stability and efficiency of the underwater wet cutting process, the authors have developed the method for analyzing oscillograms to calculate the probability density of current, voltage and power. To determine the quality of cutting, the authors have provided a criterion based on the ratio of the voltage probability density in the idle and operating cycles.

Słowa kluczowe

EN

underwater cutting; flux-cored wire; mathematical analysis

PL

cięcie podwodne; drut proszkowy; analiza matematyczna

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2021
• Tom: Vol. 21, nr 1(67)
• Strony: 77--89
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Parshin S.

• Institute of Mechanical Engineering, Materials and Transport; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia

autor

Levchenko A.

• Department of Underwater Welding and Technologies; Educational Scientific and Technical Center «Svarka», St. Petersburg, Russia

autor

Wang P.

• Institute of Mechanical Engineering, Materials and Transport; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia

autor

Maystro A.

• Institute of Mechanical Engineering, Materials and Transport; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).