Combined technologies for increasing the reliability and service life of aerospace products

Abstract

The paper considers a major scientific and applied problem of improving the quality and reliability of scientific products by technological methods and means, forming the basis for the production of competitive products of domestic engineering, primarily in the aerospace industry. The analysis of the defect appearance causes in technology and the decrease in its reli-ability at the stages of product life cycle is carried out. Measures were identified to ensure established reliability while maintaining or increasing the resource with minimizing costs at the stage of commercializing by gradually increasing opera-tional characteristics underway product test. It is shown that combined methods of part process allow creating small-sized multilayer vibration-resistant filters with an increased area of the working area and a total wall thickness that ensures the stability of the product to repeated vibrations, which previously caused undesirable increase in the dimensions and mass of a manufactured product. The possibilities of using combined processing methods with the imposition of electromagnetic fields to improve the operational characteristics of upgraded and aircraft parts under formation, including their elements, in the expansion of mass production of scientific products, particularly developed for their import substitution, are found.The change in the mechanical characteristics of materials under various processing methods has been studied. Specimens test for strength at failure and stretch have shown that the consistent use of highly efficient electrochemical sizing followed by jackhammering (or other) way of hardening allows the increase in the characteristics of products up to 10%, achieving a result not lower than that obtained after tooling with hardening.