ECONOMIC ASPECTS OF OF TITANIUM ALLOY TI-5AL-2.5SN WELDING FOR AVIATION APPLICATIONS

Purpose: Novelty of the paper is to present the Ti alloy welding for aeronautic application.Welding titanium is treated as a difficultprocedure.The aim of the article is to develop the TIG (Tungstan Inert Gas) welding process for titanium alloys instead of much more expensive process of welding in vacuum chamber Design/methodology/approach: Main parameters of the titanium alloy welding process were tested and then the quality of the obtained joint was checked by the mechanical tests.Findings: Welding parameters were determined without carring out the process in vacuum chamber that is much more expensive and energy-intensive process.Research limitations/implications: It was suggested to investigate the effect of modified shielding gas mixtures (Ar-He) for the TIG process.Practical implications: The proposed process innovation will result in savings of production cost, because titanium alloys are mainly welded in a vacuum chamber, which is more expensive process.Social implications: Vacuum chamber in the welding process allows for energy savings.Originality/value: It is to propose a new solution in aeronautic industry.The article is especially addressed to manufacturers of titanium alloys for aviation.