3_2020_sen_4

Title of the article

DYNAMIC STABILIZATION OF RINGS OF LOW RIGIDITY AFTER THE RING-ROLLING
Authors

ANTONYUK Vladimir E., D. Sc. in Eng., Chief Researcher, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

SANDOMIRSKI Sergei G., D. Sc. in Eng., Assoc. Prof., Head of the Laboratory of Metallurgy in Mechanical Engineering, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section DYNAMICS, DURABILITY OF VEHICLES AND STRUCTURES
Year 2020 Issue 3 Pages 34–41
Type of article RAR Index UDK 621.81 Index BBK  
DOI https://doi.org/10.46864/1995-0470-2020-3-52-34-41
Abstract The physics fundamentals and advantages of ring-rolling the products are described. The analysis of production volumes of the products by ring-rolling in Europe is carried out. The definition of rings of low rigidity is given. The problems of using of the ring-rolling for their production, the main errors and deformations arising in the process of manufacturing of rings of low rigidity are considered. The ways of increasing the geometric accuracy of the rings and relieving residual stresses are analyzed. The fundamental advantage of the method of dynamic stabilization of rings of low rigidity to other types of correction is explained. A brief description of the device expanders for dressing rings of low rigidity with a wedge mechanism is presented. The problems of correction with their use are characterized. As a fundamentally new technological operation that increases the accuracy of manufacturing of rings of low rigidity and reduces residual stresses in them, an effective technology of dynamic stabilization, cyclic loading, is proposed. The prospects of using the cyclic loading method to increase geometric accuracy and reduce residual stresses in rings of low rigidity are substantiated. Recommendations are given on the creation of universal installations for the dynamic stabilization of rings of low rigidity in order to eliminate the deformations that have arisen during the production process and relieve residual stresses after the rings are manufactured on ring-rolling complexes. The calculated dependences for the design of installations for the dynamic stabilization of rings with outer diameters up to 3,000 mm and weight up to 1,000 kg are given. The results can be used to increase the accuracy of manufacturing of rings billets of low rigidity during their planned production at the Belarusian Automobile Plant BelAZ and other enterprises.
Keywords

ring, ring-rolling, rigidity, residual stresses, cyclic loading, dynamic stabilization
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