International Conference on Secure Systems Design and Technology Development (SysTechDev 2026)

Determination of Optimal Welding and Underwater Cutting Parameters for Ship Hull Steel of Scientific Research Vessel RSV 421 "St. St. Cyril and Methodius"

Not scheduled

20m

''Vasil Levski'' National Military University

Paper – Poster Presentation Engineering Sciences and Production Technology

Speakers

Hristo Hristov (Nikola Vaptsarov Naval Academy - Varna, Bulgaria)Prof. Momchil Manov (Nikola Vaptsarov Naval Academy - Varna, Bulgaria)

Description

This article presents a series of investigations aimed at determining the optimal parameters for welding and underwater cutting of ship hull steel, specifically conducted on the Scientific Research Vessel RSV 421 "St. St. Cyril and Methodius". The research regarding underwater cutting focuses on the oxy-arc method, establishing the ideal oxygen pressure, electric current intensity, and electrode diameter. Furthermore, the study defines specific welding procedures designed for emergency response, utilizing the standard welding equipment available onboard the vessel.