TECHNOLOGICAL FEATURES OF MANUFACTURING ALUMINUM ALLOY PROFILES FOR AIRCRAFT STRUCTURAL ELEMENTS

Ruslan Borys

Abstract


The subject matter of this article is the technological process of manufacturing extruded aluminum alloy profiles used in aircraft structures. The goal of the study is to summarize the technological features of manufacturing such profiles and to determine the primary factors affecting their dimensional accuracy, surface quality, structural uniformity and performance properties. The tasks addressed are to analyze the main stages of the technological route, determine the influence of billet temperature, extrusion speed, deformation ratio, tool geometry, friction conditions and heat treatment regimes, to systematize typical defects and propose a generalized quality assurance scheme. The methods used include an analytical generalization of scientific and technical sources, comparative analysis of technological factors and systematization of cause-and-effect relationships between process parameters and product quality. The results show that the quality of an extruded profile is formed by the combined influence of all stages along the manufacturing route, from billet preparation and homogenization to extrusion, cooling, straightening, aging and final inspection. The scientific novelty lies in the systematization of technological factors governing the production of aluminum alloy profiles from the standpoint of aircraft production requirements. Conclusions. The proposed approach enables consideration of the profile as a responsible semi-finished product whose properties are formed throughout the manufacturing process and can be used to develop manufacturing routes for aircraft structural elements.


Keywords


aluminum alloys; aircraft structures; profile extrusion; technological process; heat treatment; surface quality; di-mensional accuracy; manufacturability

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DOI: https://doi.org/10.32620/aktt.2026.4.07