Irkutsk National Research Technical University, Irkutsk, Russia
S. K. Kargapoltsev, Professor of the Department of Technology and Equipment of Machine-building Industries, Doctor of Technical Sciences, e-mail: kck6262@mail.ru

Irkutsk State Transport University, Irkutsk, Russia
R. S. Bolshakov, Associate Professor of the Department of Operational Work Management, Candidate of Technical Sciences, e-mail: bolshakov_rs@mail.ru
A. K. Mozalevskaya, Senior Lecturer at the Department of Railway, Bridge and Tunnel Construction

Based on studies of the temperature treatment of parts, the development of a methodology for controlling the deformed state of low-rigidity aluminum alloy parts is proposed. Rectangular shaped samples have been studied in the presence of residual stresses in two planes. Based on generally accepted theoretical principles, the location of residual stresses in the sample structure with an asymmetric distribution is shown. The problem of residual stresses and deformations during sequential two sided treatment of a part is solved using general approaches known from the theory of residual stresses. Mathematical models of the formation of general and local residual deformations of low-rigidity parts such as reinforced plates caused by thermal residual stresses in the workpiece and the actual cutting process are presented. A detailed scheme of the test sample with bilateral orthogonal fins is considered. Integral expressions for determining the tensile and compressive forces in parts of this type are obtained, and a formula for determining the bending moment is given. A brief description of the accelerated method for determining residual stresses is given. The deformed state of the part after cutting is analyzed. Based on the conducted scientific research, an algorithm has been created for the computer-aided design of the technological process of manufacturing parts of the type in question, taking into account all the factors affecting their production. A method based on the determination of the areas of the residual stress diagrams in two planes is proposed, which does not contradict the known theoretical provisions. The ways of reducing the residual deformations of low-rigid reinforced parts, taking into account their complex geometric profile, are shown.

1. Birger I. A. Residual stresses. Moscow : MASHGIZ, 1963. 233 p.
2. Promptov A. I. Formation of common approaches to surface quality management in mechanical processing. Vestnik Irkutskogo gosudarstvennogo tekhnicheskogo universiteta. 2005. No. 2. pp. 98–101.
3. Kargapoltsev S. K. Residual deformations during milling of low-rigid parts with reinforcement. Scientific editor A. I. Promptov. Irkutsk : Irkutsk Publishing House, 1999. 136 p.
4. Kargapoltsev S. K. Control of the deformed state of low-rigid parts such as plates with reinforcement. Sovremennye tekhnologii. Sistemnyi analiz. Modelirovanie. 2004. No. 1. pp. 48–54.
5. Zhongxu X., Changpeng C. Study of residual stress in selective laser melting of Ti6Al4V. Materials & Design. 2020. Vol. 193. 108846. DOI: 10.1016/j.matdes.2020.108846
6. Rossini N. S., Dassisti M., Benyounis K. Y., Olabi A. G. Methods of measuring residual stresses in components (Review). Materials and Design. 2012. No. 35. pp. 572–588.
7. Schajer G. S. Residual Stresses: Measurement by Destructive Methods. Encyclopedia of Materials: Science and Technology. Oxford : Elsevier Science, 2001. Section 5a. pp. 8152–8158.
8. Schajer G. S., Philip S. W. Hole-Drilling Method for Measuring Residual Stresses. Synthesis SEM Lectures on Experimental Mechanics. 2018. No. 1. pp. 1–186.
9. Botvenko S. I. Spatial distribution of thermal residual stresses in a plate. Vestnik Irkutskogo gosudarstvennogo tekhnicheskogo universiteta. 2013. No. 12. pp. 44–53.
10. Botvenko S. I. Method for determining residual quenching stresses. Patent RF, No. 2494359. Applied: 10.02.2012. Published: 27.09.2013.
11. Rickert T. Residual Stress Measurement by ESPI Hole-Drilling. Procedia CIRP. 2016. Vol. 45. pp. 203–206.
12. Ghasemi A. R., Shokrieh M. M. Measuring residual stresses in composite materials using the simulated hole-drilling method. Residual Stresses in Composite Materials. Woodhead Publishing. 2014. pp. 76–120.
13. Hill M. R. The Slitting Method. Practical Residual Stress Measurement Methods. Vancouver : University of British Columbia, 2013. pp. 89–108.
14. Cheng W., Finnie I. Residual Stress Measurement and the Slitting Method. New York : Springer, 2007. 164 p.
15. Makhalov M. S., Krechetov A. A., Blumenstein V. Yu., Gorbatenko V. V. Investigation of the distribution of residual stresses over the depth of the surface layer after mechanical processing by drilling probing holes and digital image correlation. iPolytech Journal. 2024. Vol. 28, No. 1. pp. 40–50.
16. Radchenko V. P., Shishkin D. M. Method of reconstruction of residual stresses in a prismatic sample with a semicircular profile incision after advancedsurface plastic deformation. Izvestiya Saratovskogo universiteta. Novaya seriya. Seriya: Matematika. Mekhanika. 2020. Vol. 20, Iss. 4. pp. 478–492.
17. Ivanov D. A., Koloskov A. A. Control of residual stresses in metal structural elements of aircraft by gas pulse treatment. Tekhnologiya metallov. 2020. No. 3. pp. 21–26.
18. Lebedinsky S. G., Moskvitin G. V. Assessment of the operational threshold level of loading for cast railway steels. Problemy mashinostroeniya i avtomatizatsii. 2021. No. 1. pp. 28–34.