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https://doi.org/10.17559/TV-20220810110706

Quality Parameters of Explosively Welded Spring Steel and Carbon Steel

Miloš S. Lazarević ; Faculty of engineering University of Kragujevac, Sestre Janjić 6, Kragujevac, Serbia
Bogdan P. Nedić ; Faculty of engineering University of Kragujevac, Sestre Janjić 6, Kragujevac, Serbia
Danica M. Bajić ; Military Technical Institute (VTI), Ratka Resanovića 1, Belgrade, Serbia
Stefan Đurić ; Faculty of engineering University of Kragujevac, Sestre Janjić 6, Kragujevac, Serbia
Luka Marušić ; Industrial school in Slavonski Brod, Eugena Kumičića 55, Slavonski Brod, Croatia

Sažetak

Explosive plating, or welding, is a process where part of the kinetic energy of the detonation of a certain amount of civil explosive material is used to accelerate the plate, which will form a welded joint upon an oblique impact on a stationary plate. The conditions that must be met to achieve a good weld are determined by welding criteria. Today, the most commonly used welding criteria are based on the speed of the collision point and the collision angle. In this paper a research is presented on explosion welding of two different steels and on quality of the obtained welded joint. Carbon steel and spring steel were welded using Amonex 4 explosive in different quantities. Basic characterization of the explosive was carried out: bulk density and detonation velocity were determined. Quality of the welded joint was inspected using the ultrasonic method. Possible intermetallic zones at the joint site created by the effect of increased temperature were examined by optical and scanning electron microscopy. Fracture toughness of the welded plates was determined, as well as hardness. The achieved experimental results were compared to theoretical predictions.

Ključne riječi

carbon steel; detonation wave; explosion welding; intermetallic zone; melting zone; spring steel; ultrasound

Hrčak ID:

294377

URI

https://hrcak.srce.hr/294377

Datum izdavanja:

26.2.2023.

Posjeta: 532 *