ANALYSIS OF INTRODUCTION OF ADDITIVE PRODUCTION IN AIRCRAFT INDUSTRY

Abstract

The article deals the issues of improving the quality, reducing time, cost of manufacturing domestic aircraft and reducing their weight by modernizing technological processes taking into account a wide range of functionalities for the use of additive technologies for the production of structural elements of aircraft from titanium alloys. The article provides is determined that titanium and its alloys, due to their unique chemical and mechanical characteristics, continue to be relevant and in demand metal used in the construction of modern aircraft. But traditional methods of manufacturing parts made of titanium are high cost and do not allow the use of this metal in large quantities. The solution proposed to this problem is the use of additive manufacturing technologies for the manufacture of aircraft structural elements from titanium. Data are given about of the use of titanium alloys in the aerospace, automotive, biomedical and chemical industries due to the excellent combination of strength, low density, as well as very high corrosion resistance and fatigue strength are given. The efficiency of using titanium alloys for the manufacture of structural elements of aircraft in terms of reducing the total weight of the aircraft and high reliability of the structure as a whole. The article provides descriptive information about additive technologies in mechanical engineering. The review of works of foreign scientists concerning research of differences in mechanical characteristics, microstructure and macrostructure of samples made by means of additive technologies is resulted, their advantages and lacks are noted. The list of advantages of additive technologies in mechanical engineering which cause economic efficiency from their use is resulted. Attention is drawn to the most common methods of additive production: substrate synthesis (PBF), direct energy and material supply (DED). It is given the tasks of research are defined and the decision of optimization of technology of manufacturing of elements of a design of aircraft. Research will further improve the technology of aircraft production.