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This paper reports the problem of quality increase in the assembly of riveted connections. The basic methods for the creation of permanent connections are considered, the computation procedures for durability are analyzed, advantages and disadvantages of hot and cold riveting are revealed. A basic part of the paper deals with of common assembly processes updating. In particular, to the introduction of ultrasonic vibrations in the area of a contact of parts surfaces when together with basic motions envisaged by a technological scheme of assembly the vibrations of ultrasonic frequency are imparted to the parts additionally. &#x0D;The author shows the main positive results obtained due to the introduction of an ultrasonic method of product processing: the improvement of a surface layer quality in a product, increase of fatigue resistance, contact endurance, contact rigidity and machine parts and tool wear resistance.&#x0D;In the experimental part there are considered three different procedures of USC feed in the area of rivet head formation. The diagrams of value changes in static efforts of rivet material deformation caused by oscillation amplitude of the end of a thickener are shown.

Quality increase in assembly joints of mechanical engineering objects by ultrasonic vibrations superposition