Vibrations in engineering and technology

Kolisnyk Mykola – Doctor of Philosophy in Materials Science, Senior Lecturer Department of Electric Power Engineering, Electrical Engineering and Electromechanics, Vinnitsa National Agrarian University (3, Solnechna str., Vinnitsa, 21008, Ukraine, email: kolisnik30@gmail.com). 

This paper examines the process of cold rolling stamping as one of the advanced and efficient methods of metal forming under pressure, which ensures not only high precision but also excellent surface quality of finished products.

This method is widely used in modern manufacturing due to its ability to form complex spatial geometries without significantly compromising the strength properties of the material. Particular attention in the study is given to the analysis of the stress-strain state of the material during localized plastic deformation, which occurs in the zone of direct contact between the tool and the workpiece. Under such conditions, complex gradients of stress and strain arise, which have a significant impact on the final characteristics of the part.

The paper provides a detailed methodology for calculating the main indicators of the material's stress state, including hydrostatic pressure, equivalent stresses, strain intensity, and other values that help identify the most stressed areas of the workpiece. The influence of these parameters on the critical strain values is considered, as they may lead to the initiation of microcracks, loss of ductility, or failure of the product during forming. Special attention is paid to the study of process parameters such as rolling speed, ambient temperature, tool geometry, and the mechanical properties of the material. An energy consumption assessment of the process is carried out, enabling the identification of the most efficient ways to reduce energy usage while simultaneously increasing technological efficiency and material lifespan.

The results provide a deeper understanding of the physical and mechanical mechanisms of plastic deformation under cold forming conditions. They can serve as a basis for further optimization of tool design, development of effective deformation modes, and prediction of the durability of components manufactured using this method. This is particularly relevant in industries such as mechanical engineering, aerospace, automotive, and defense, where the quality of deformed parts is subject to especially high standards, and the reliability and precision of the components are critical factors.

1. Matviychuk V., Kolisnyk M. Development of the combined technological process of blank stacks flanges formation by the method of stamping by rolling and rotary drawing. Vibrations in Engineering and Technology. 2021. №. 1(100). P. 111–121. DOI: 10.37128/2306-8744-2021-1-11 [in Ukraine].

2. Shtuts A., Kolisnyk M., Vydmysh A., Voznyak O., Baraban S., Kulakov P. Improvement of Stamping by Rolling Processes of Pipe and Cylindrical Blades on Experimental Research. Key Engineering Materials. 2020. Vol. 844. P. 168–181. DOI: https://doi.org/10.4028/www.scientific.net/KEM.844.168 [in Switzerland].

3. Matviychuk V.A., Mykhalevych V.M., Dobranyuk Yu.V., Trach Ye.A. Generalization of the experimental-analytical method of upsetting process analysis. Metal Forming. Kramatorsk: DDMA, 2014. №. 1. P. 41–47 [in Ukraine].

4. Matviychuk V.A., Mykhalevych V.M., Krayevskyi V.O. Development of cold face rolling processes considering the effect of technological parameters on metal flow direction. Vibrations in Engineering and Technology. 2015. №. 2. 

P. 92–96 [in Ukraine].

5. Matviychuk V.A., Kolisnyk M.A. Development of a technological process for forming wide flanges on sheet blanks by stamping by rolling. Engineering, Energy, Transport of the Agro-Industrial Complex. 2021. №. 1(112). P. 38–45. DOI: 10.37128/2520-6168-2021-1-5 [in Ukraine].

6. Matviychuk V.A., Kolisnyk M.A., Liubin M.V. Development and study of rolling stamping processes for complex-profiled blanks. Engineering, Energy, Transport of the Agro-Industrial Complex. 2018. №. 4(103). P. 56–63 [in Ukraine].

7. Mykhalevych V.M., Dobranyuk Yu.V. Analytical description of the form change dynamics of cylindrical blanks during face compression. Bulletin of the National Technical University "KhPI". Special Issue: New Solutions in Modern Technologies. Kharkiv: NTU "KhPI", 2015. №. 47. P. 53–56 [in Ukraine].

8. Mykhalevych V.M., Dobranyuk Yu.V. Analytical representation of the maximum radius of cylindrical blanks during axisymmetric upsetting with barreling. Bulletin of Mechanical Engineering and Transport. 2015. No. 1. P. 59–66 [in Ukraine].

9. Mykhalevych V.M., Dobranyuk Yu.V. Approximation of relationships between strain components on the side surface of a cylindrical specimen during face compression. Certificate of copyright registration №. 38309, May 11, 2011 

[in Ukraine].

10. Mykhalevych V.M., Dobranyuk Yu.V. Model of material plastic deformation on the free surface of cylindrical specimens during axisymmetric upsetting. Part 1. Approximation of deformations. Bulletin of Vinnytsia Polytechnic Institute. 2010. №. 2. P. 97–102 [in Ukraine].

11. Matviychuk V., Shtuts A., Kolisnyk M., Kupchuk I., Derevenko I. Investigation of the Tubular and Cylindrical Billets Stamping by Rolling Process with the Use of Computer Simulation. Periodica Polytechnica Mechanical Engineering. 2022. Vol. 66(1). P. 51–58. DOI: https://doi.org/10.3311/PPme.18659 [in Hungary].

12. Mykhalevych V.M., Kolisnyk M.A., Shtuts A.A. Study of the Stress–Strain State of the Material of the Blanks during Plastic Stamping by Rolling. Metallophysics and Advanced Technologies. 2025. Vol. 47, №. 1. P. 57–81. DOI: https://doi.org/10.15407/mfint.47.01.0057[in Ukraine].